SPORT COMPACT - VALVE SPRINGS

Model Engine /Part Nº	Type/Material/ Application	O.D.	I.D.	Seat Press.	Open Press.	Rate Inch	Coil Bind	Max Net Lift
ACURA INTEGRA GSR 1.7L - DOHC V-TEC 16 VALVE (B17A1) - 1992-1993
ACURA INTEGRA GSR 1.8L - DOHC V-TEC 16 VALVE (B18C1-C3) - 1994-2000
S10027	Dual Spring - Hi Pressure	22.8 mm	17.2 mm	100 lbs	220 lbs	305 lbs	20 mm	13.5 mm
	Special Alloy	30.25 mm	22.8 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR Ferrea Aluminum Magnesium Retainer # E10018
and Ferrea Spring Seat Locator # SL1000 (Discard OEM Spring Seat Locator)
S10028	Single Spring	30.25 mm	22.8 mm	55 lbs	125 lbs	178 lbs	20 mm	13.5 mm
	Special Alloy			@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR Ferrea Aluminum Magnesium Retainer # E10018
and Factory supplied Spring Seat Locator OR Ferrea Spring Seat Locator # SL1004
S10032	Dual Spring - Drag Racing	22.55 mm	16.75 mm	80 lbs	195 lbs	292 lbs	21 mm	13.5 mm
	Special Alloy	30.15 mm	22.55 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer # E11003 and Ferrea Spring Seat Locator # SL1000
(Discard OEM Spring Seat Locator)
S10035	Dual	20.8 mm	16.51 mm	65 lbs	185 lbs	305 lbs	20 mm	14 mm
	Chrome Silicon	28.0 mm	20.8 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer #E11035 OR Ferrea Aluminum Magnesium Retainer # E10021 and
Ferrea Spring Seat Locator # SL1005 (Discard OEM Spring Seat Locator)
S10064	Dual Spring - Turbo	22.93 mm	17.2 mm	95 lbs	215 lbs	305 lbs	19 mm	14 mm
	Special Alloy-	30 mm	22.93 mm	@34 mm	@24 mm
	Hi Pressure
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1000
(Discard OEM Spring Seat Locator)
S10070	Dual Spring -	22.85 mm	17.5 mm	80 lbs	190 lbs	279 lbs	18 mm	14 mm
	Special Alloy	30.45 mm	22.85 mm	@33 mm	@23 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1004
(Discard OEM Spring Seat Locator). Maximum Retainer Step: 3.6 mm
S10086	Dual Spring	22.85mm	17.5mm	110 lb	260 lb	292 lbs	20 mm	13 mm
	Special Alloy	30.45mm	22.85mm	@ 34mm	@ 21mm
	Endurance Application
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1044
(Discard OEM Spring Seat Locator)				This Spring requires Ferrea Roller Rocket # RR1000
S10104	Dual Spring - Turbo -	23.10 mm	17.2mm	80 lbs	195 lbs	292 lbs	20 mm	13.5 mm
	PAC enhanced Alloy	30mm	23.10mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR E11000LW OR Ferrea Aluminum
Magnesium Retainer # E10018 and Ferrea Spring Seat Locator # SL1000 (Discard OEM Spring Seat Locator)
ACURA RSX 2.0L - DOHC V-TEC 16 VALVE (K20) - 2002-2004
S10099	Dual Spring-Special Alloy	22.85 mm	17.5 mm	80 lbs	190 lbs	279 lbs	24 mm	14 mm
	Endurance Spring	30.45 mm	22.85 mm	@40 mm	@30 mm
This Spring requires Ferrea Titanium Retainer # E11066 and Ferrea Spring Seat Locator # SL1052
(Discard OEM Spring Seat Locator).
S10100	Dual Spring-Chrome Silicon	23.1 mm	17.35 mm	105 lbs	225 lbs	305 lbs	22 mm	15 mm
	Drag Racing	31 mm	23.1 mm	@ 39 mm	@ 29 mm
This Spring requires Ferrea Titanium Retainer # E11066 and Ferrea Spring Seat Locator # SL1053
(Discard OEM Spring Seat Locator)
ACURA INTEGRA LS-GS 1.8L - DOHC 16 VALVE (B18A1-B1) - 1990-2000
HONDA CRV 2.0L - DOHC 16 VALVE (B20A-B20Z) - 1997-2000
S10046	Dual	20.8 mm	16.51 mm	60 lbs	160 lbs	254 lbs	20 mm	14 mm
	Chrome Silicon	28.0 mm	20.8 mm	@ 36.5 mm	@ 26.5 mm
This Spring requires Ferrea Titanium Retainer # E11023.
Use (FOR EXHAUST APPLICATION ONLY) Ferrea Spring Seat Locator #SL1017
FOR INTAKE APPLICATION use Factory supplied Seat Locator.
S10050	Single Spring - Turbo	21.5 mm	15.1 mm	65 lbs	145 lbs	216 lbs	22 mm	11 mm
	Special Alloy			@ 34.5 mm	@ 24.5 mm
	(Intake - 12 pieces)
This Spring requires Ferrea Titanium Retainer #E11031and Ferrea Spring Seat Locator #SL1025
(Discard OEM Spring Seat Locator).
S10056	Dual Spring - Turbo	22.75 mm	17.1 mm	80 lbs	180 lbs	254 lbs	20 mm	12 mm
	Special Alloy	29.5 mm	22.75 mm	@ 32.5 mm	@ 22.5 mm
	(Exhaust - 8 pieces)
This Spring requires Ferrea Titanium Retainer #E11032 and Ferrea Spring Seat Locator #SL1026
(Discard OEM Spring Seat Locator).
ALFA ROMEO GTA 156 V6 3.2L - DOHC 24 VALVE - 2002-2005
S10125	Double Spring-Special Alloy	20.8 mm	16.51 mm	75 lbs	175 lbs	254 lbs	17 mm	12.5mm
This Spring requires Ferrea Titanium Retainer #E11099 and Ferrea Spring Seat Locator # SL1107.
(Discard OEM Spring Seat Locator).
AUDI 1.8T - DOHC 20 VALVE - 1996-2005
S10055	Single Spring - Turbo	21.5 mm	15.1 mm	65 lbs	145 lbs	216 lbs	22.5 mm	11 mm
	Special Alloy			@ 34.5 mm	@ 24.5 mm
	(Intake - 12 pieces)
This Spring requires Ferrea Titanium Retainer #E11031and Ferrea Spring Seat Locator #SL1025
(Discard OEM Spring Seat Locator).
S10056	Dual Spring - Turbo	22.75 mm	17.1 mm	80 lbs	180 lbs	254 lbs	20 mm	12 mm
	Special Alloy	29.5 mm	22.75 mm	@ 32.5 mm	@ 22.5 mm
	(Exhaust - 8 pieces)
This Spring requires Ferrea Titanium Retainer #E11032 and Ferrea Spring Seat Locator #SL1026
(Discard OEM Spring Seat Locator).
AUDI 2.0T - FSI -DOHC 16 VALVE - 2006-2008
S10121	Single Spring	23.5 mm	15.8 mm	90 lbs	200 lbs	279 lbs	27 mm	11 mm
	Special Alloy			@ 39 mm	@ 29 mm
This Spring requires Ferrea Titanium Retainer #E11093 and Ferrea Spring Seat Locator #SL1103
(Discard OEM Factory supplied Spring Seat Locator).
NOTE: Max Net Lift is limited by the Factory installed height and rocker arm bottom clearance with Ferrea Tit Ret
AUDI 2.7T - DOHC 30 VALVE (APB) - 1998-2004
S10055	Single Spring - Turbo	21.5 mm	15.1 mm	65 lbs	145 lbs	216 lbs	22.5 mm	11 mm
	Special Alloy			@ 34.5 mm	@ 24.5 mm
	(Intake - 18 pieces)
This Spring requires Ferrea Titanium Retainer #E11031 and Ferrea Spring Seat Locator #SL1025
(Discard OEM Spring Seat Locator).
S10056	Dual Spring - Turbo	22.75 mm	17.1 mm	80 lbs	180 lbs	254 lbs	20 mm	12 mm
	Special Alloy	29.5 mm	22.75 mm	@ 32.5 mm	@ 22.5 mm
This Spring requires Ferrea Titanium Retainer #E11032 and Ferrea Spring Seat Locator #SL1026
(Discard OEM Spring Seat Locator).
	(Exhaust - 12 pieces)
AUDI RS6 4.2L - DOHC V8 40 VALVE (BCY) - 2002-2004
S10055	Single Spring - Turbo	21.5 mm	15.1 mm	65 lbs	145 lbs	216 lbs	22.5 mm	11 mm
	Special Alloy			@ 34.5 mm	@ 24.5 mm
	(Intake - 24 pieces)
This Spring requires Ferrea Titanium Retainer #E11031 and Ferrea Spring Seat Locator #SL1025
(Discard OEM Spring Seat Locator).
S10056	Dual Spring - Turbo	22.75 mm	17.1 mm	80 lbs	180 lbs	254 lbs	20.5 mm	12 mm
	Special Alloy	29.5 mm	22.75 mm	@ 32.5 mm	@ 22.5 mm
	(Exhaust - 16 pieces)
This Spring requires Ferrea Titanium Retainer #E11032 and Ferrea Spring Seat Locator #SL1026
(Discard OEM Spring Seat Locator).
AUDI 80 QUATRO 2.2 L - DOHC 20 VALVE (7A) - 1989-1992
AUDI 200 QUATRO 2.2 L - DOHC 20 VALVE (3B) - 1991
AUDI COUPE QUATRO 2.2 L - DOHC 20 VALVE (7A) - 1990-1991
S10115	Dual Spring	22.75 mm	17.1 mm	85 lbs	205 lbs	304 lbs	17.5 mm	14 mm
	Special Alloy	29.5 mm	22.75 mm	@ 33 mm	@ 23 mm
	Endurance Application
This Spring requires Ferrea Titanium Retainer # E11084 and Ferrea Seat Locator # SL1073
(Discard OEM Spring Seat Locator).
AUDI RS2 2.2 L - DOHC 20 VALVE (ADU) - 1994-1995
AUDI S4 2.2 L - DOHC 20 VALVE (AAN) - 1992-1994
AUDI S6 2.2 L - DOHC 20 VALVE (AAN) - 1995
S10115	Dual Spring	22.75 mm	17.1 mm	85 lbs	205 lbs	304 lbs	17.5 mm	14 mm
	Special Alloy	29.5 mm	22.75 mm	@ 33 mm	@ 23 mm
	Endurance Application
This Spring requires Ferrea Titanium Retainer # E11084 and Ferrea Seat Locator # SL1073
(Discard OEM Spring Seat Locator).
AUDI V8 3.6 L - DOHC 32 VALVE (PT) - 1990-1991
AUDI V8 4.2 L - DOHC 32 VALVE (ABH) - 1992-1994
S10115	Dual Spring	22.75 mm	17.1 mm	85 lbs	205 lbs	304 lbs	17.5 mm	14 mm
	Special Alloy	29.5 mm	22.75 mm	@ 33 mm	@ 23 mm
	Endurance Application
This Spring requires Ferrea Titanium Retainer # E11084 and Ferrea Seat Locator # SL1073
(Discard OEM Spring Seat Locator).
BMW 3 SERIES (M50-M51-M52)
S10049	Dual Spring - Turbo	22.75 mm	17.1 mm	80 lbs	180 lbs	254 lbs	21 mm	14 mm
	Special Alloy	29.5 mm	22.75 mm	@ 36 mm	@ 26 mm
This Spring requires Ferrea Titanium Retainer #E11025 or Ferrea Aluminum Magnesium Retainer #E10025
and Ferrea Spring Seat Locator #SL1021 (Discard OEM Spring Seat Locator).
CHRYSLER/DODGE 3.5L - SOHC V6 24 VALVE - 1998-2004
S10101	Dual Spring-Special Alloy	23.1 mm	17.35 mm	110 lbs	225 lbs	292 lbs	21 mm	15 mm
	Drag Racing	31 mm	23.1 mm	@ 36 mm	@ 26 mm
This Spring requires Ferrea Titanium Retainer #E11068 and Ferrea Spring Seat Locator # SL1054
and Factory supplied Spring Seat Locator.
DODGE NEON 2.4 - SRT4 - DOHC 16 VALVE (A853) - 2003-2005
S10107	Dual Spring - Turbo	20.8 mm	16.51 mm	90 lbs	200 lbs	279 lbs	23 mm	12 mm
	Stage 1 - Special Alloy	28.0 mm	20.8 mm	@37 mm	@27 mm
This Spring requires Ferrea Titanium Retainer #E11073 and BOTH Ferrea Spring Seat Locator # SL1061
and Factory supplied Spring Seat Locator.
S10108	Dual Spring - Turbo	20.8 mm	15.88 mm	105 lbs	235 lbs	330 lbs	23.5 mm	12 mm
	Stage 2 - Special Alloy	28.0 mm	20.8 mm	@37 mm	@27 mm
This Spring requires Ferrea Titanium Retainer #E11074 and BOTH Ferrea Spring Seat Locator # SL1062
and Factory supplied Spring Seat Locator.
FOED 2.3L - DOHC ZTEC 16 VALVE - 2002
S10040	Single Spring	25.19 mm	18.23 mm	60 lbs	140 lbs	203 lbs	18.5 mm	12.5 mm
	Special Alloy			@ 31.5 mm	@ 21.5 mm
This Spring requires Ferrea Titanium Retainer # E11018 and both Ferrea Spring Seat Locator #SL1020
and Factory supplied Spring Seat Locator.
S10041	Dual Spring - Turbo	18.23 mm	13.40 mm	75 lbs	195 lbs	305 lbs	18.75 mm	13.5 mm
	Special Alloy	24.70 mm	18.23 mm	@32.75mm	@22.75mm
This Spring requires Ferrea Titanium Retainer # E11018 and Ferrea Spring Seat Locator #SL1019 (Discard OEM Spring
Seat Locator) note: This Spring (#S10041) can be used only with Ferrea Aluminum Bronze Valve Guides (for 5.5 mm
valve stem) #VG1015 (Intake) and #VG1016 (Exhaust) and Ferrea Valve Seals #VS1000 (Exhaust) and VS1001 (Intake)
FORD ESCORT 2.0L - DOHC ZETEC 16 VALVE (ZX2) - 1999-2001
FORD FOCUS 2.0L - DOHC ZETEC 16 VALVE (ZX3) - 2000-2001
S10040	Single Spring	25.19 mm	18.23 mm	60 lbs	140 lbs	203 lbs	18.5 mm	12.5 mm
	Special Alloy			@ 31.5 mm	@ 21.5 mm
This Spring requires Ferrea Titanium Retainer #E11018 and BOTH Ferrea Spring Seat Locator #SL1014
and Factory supplied Spring Seat Locator.
S10041	Dual Spring - Turbo	18.23 mm	13.40 mm	75 lbs	195 lbs	305 lbs	18.75 mm	13.5 mm
	Special Alloy	24.70 mm	18.23 mm	@ 32.75 mm	@ 22.75 mm
This Spring requires Ferrea Titanium Retainer #E11018 and Ferrea Spring Seat Locator #SL1015
(Discard OEM Spring Seat Locator)
NOTE: This Spring (#S10041) can be used only with Ferrea Manganese Bronze Valve Guides (for 5.5 mm valve stem)
#VG1006 (Intake) and #VG1007 (Exhaust) and Ferrea Valve Seals #VS1000 (Exhaust) and VS1001 (intake).
GEO METRO/SUZUKI SWIFT 1.0 L - SOHC 6 VALVE (G10)
S10047	Dual Spring - Turbo	18.23 mm	13.40 mm	70 lbs	175 lbs	266 lbs	18.75 mm	14 mm
	Special Alloy	24.70 mm	18.23 mm	@ 35.5 mm	@ 25.5 mm
This Spring requires Ferrea Titanium Retainer # E11024 and Ferrea Spring Seat Locator #SL1018
(Discard OEM Spring Seat Locator)
GM 2.2 ECO TEC
S10057	Dual Spring - Turbo	20.8 mm	16.51 mm	75 lbs	175 lbs	254 lbs	17.5 mm	14 mm
	Special Alloy	28 mm	20.8 mm	@ 32.5 mm	@ 22.5 mm
This Spring requires Ferrea Titanium Retainer # E11033 or Ferrea Aluminum Magnesium Retainer #E10026
and Factory supplied Spring Seat Locator
Note: For HIGH PRESSURE use BOTH Ferrea Spring Seat Locator #SL1028 And Factory supplied Spring Seat Locator
High Pressure spec.				110 lbs	210 lbs			12.5 mm
				@ 31 mm	@ 21 mm
GM 5 CYLINDER - L5
S10058	Dual Spring - Turbo	20.8 mm	16.51 mm	85 lbs	185 lbs	254 lbs	17.5 mm	13.5 mm
	Special Alloy	28 mm	20.8 mm	@ 32 mm	@ 22 mm
This Spring requires Ferrea Titanium Retainer # E11034 or Ferrea Aluminum Magnesium Retainer #E10027
and BOTH Ferrea Spring Seat Locator #1027 and Factory supplied Spring Seat Locator.
HIGH PRESSURE SPRINGS (SPECIAL APPLICATIONS)
S10063	Dual Spring	22.6 mm	16.55 mm	150 lbs	450 lbs	462 lbs	18 mm	16.5 mm
	Special Alloy	30.86 mm	22.6 mm	@35.6 mm	@19 mm
Maximum Retainer step 1.9 mm
HONDA ACCORD 2.2L - SOHC 16 VALVE (F22B2-F22B6) - 1994-1995
S10064	Dual Spring - Turbo	22.93 mm	17.2 mm	95 lbs	215 lbs	305 lbs	19 mm	14 mm
	Special Alloy-	30 mm	22.93 mm	@34 mm	@24 mm
	Hi Pressure
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1000
(Discard OEM Spring Seat Locator)
S10070	Dual Spring -	22.85 mm	17.5 mm	80 lbs	190 lbs	279 lbs	18 mm	14 mm
	Special Alloy	30.45 mm	22.85 mm	@33 mm	@23 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1010
(Discard OEM Spring Seat Locator). Maximum Retainer Step: 3.6 mm
S10104	Dual Spring - Turbo -	23.10 mm	17.2mm	80 lbs	195 lbs	292 lbs	20 mm	13.5 mm
	PAC enhanced Alloy	30mm	23.10mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR E11000LW OR Ferrea Aluminum
Magnesium Retainer # E10018 and Ferrea Spring Seat Locator # SL1010 (Discard OEM Spring Seat Locator)
HONDA CIVIC 1.6L - SOHC 16 VALVE (D16Z6-Y5-Y7-Y8) - 1992-2000
S10029	Single Spring	22.9 mm	15.35 mm	60 lbs	155 lbs	241 lbs	32 mm	17 mm
	Special Alloy			@ 50 mm	@ 40 mm
This Spring requires Ferrea Titanium Retainer # E11010 OR Ferrea Aluminum Magnesium Retainer # E10019
and Factory supplied Spring Seat Locator (Use only this locator)
HONDA DEL SOL 1.6L - DOHC V-TEC 16 VALVE (B16A1) - 1994-1997
HONDA CIVIC SI 1.6L - DOHC V-TEC 16 VALVE (B16A3) - 1999-2000
S10027	Dual Spring - Hi Pressure	22.8 mm	17.2 mm	100 lbs	220 lbs	305 lbs	20 mm	13.5 mm
	Special Alloy	30.25 mm	22.8 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR Ferrea Aluminum Magnesium Retainer # E10018
and Ferrea Spring Seat Locator # SL1000 (Discard OEM Spring Seat Locator)
S10028	Single Spring	30.25 mm	22.8 mm	55 lbs	125 lbs	178 lbs	20 mm	13.5 mm
	Special Alloy			@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR Ferrea Aluminum Magnesium Retainer # E10018
and Factory supplied Spring Seat Locator or Ferrea Spring Seat Locator # SL1004
S10032	Dual Spring - Drag Racing	22.55 mm	16.75 mm	80 lbs	195 lbs	292 lbs	21 mm	13.5 mm
	Special Alloy	30.15 mm	22.55 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer # E11003 and Ferrea Spring Seat Locator # SL1000
(Discard OEM Spring Seat Locator)
S10035	Dual	20.8 mm	16.51 mm	65 lbs	185 lbs	305 lbs	20 mm	14 mm
	Chrome Silicon	28.0 mm	20.8 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer # E11035 OR Ferrea Aluminum Magnesium Retainer # E10021
and Ferrea Spring Seat Locator # SL1005 (Discard OEM Spring Seat Locator)
S10064	Dual Spring - Turbo	22.93 mm	17.2 mm	95 lbs	215 lbs	305 lbs	19 mm	14 mm
	Special Alloy-	30 mm	22.93 mm	@34 mm	@24 mm
	Hi Pressure
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1000
(Discard OEM Spring Seat Locator)
S10070	Dual Spring -	22.85 mm	17.5 mm	80 lbs	190 lbs	279 lbs	18 mm	14 mm
	Special Alloy	30.45 mm	22.85 mm	@33 mm	@23 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1004
(Discard OEM Spring Seat Locator). Maximum Retainer Step: 3.6 mm
S10086	Dual Spring	22.85mm	17.5mm	110 lb	260 lb	292 lbs	20 mm	13 mm
	Special Alloy	30.45mm	22.85mm	. @ 34mm	. @ 21mm
	Endurance Application
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1044
(Discard OEM Spring Seat Locator). This Spring requires Ferrea Roller Rocket # RR1000
S10104	Dual Spring - Turbo -	23.10 mm	17.2mm	80 lbs	195 lbs	292 lbs	20 mm	13.5 mm
	PAC enhanced Alloy	30mm	23.10mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR E11000LW OR Ferrea Aluminum
Magnesium Retainer # E10018 and Ferrea Spring Seat Locator # SL1000 (Discard OEM Spring Seat Locator)
HONDA PRELUDE 2.2L - DOHC V-TEC 16 VALVE (H22A1-A4) - 1993-2000
S10027	Dual Spring - Hi Pressure	22.8 mm	17.2 mm	100 lbs	220 lbs	305 lbs	20 mm	13.5 mm
	Special Alloy	30.25 mm	22.8 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR Ferrea Aluminum Magnesium Retainer # E10018
and Ferrea Spring Seat Locator # SL1000 (Discard OEM Spring Seat Locator)
S10028	Single Spring	30.25 mm	22.8 mm	55 lbs	125 lbs	178 lbs	20 mm	13.5 mm
	Special Alloy			@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR Ferrea Aluminum Magnesium Retainer # E10018
and Ferrea Spring Seat Locator # SL1003 (Discard OEM Spring Seat Locator)
S10032	Dual Spring - Drag Racing	22.55 mm	16.75 mm	80 lbs	195 lbs	292 lbs	21 mm	13.5 mm
	Special Alloy	30.15 mm	22.55 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer # E11003 and Ferrea Spring Seat Locator # SL1003
(Discard OEM Spring Seat Locator)
S10035	Dual	20.8 mm	16.51 mm	65 lbs	185 lbs	305 lbs	20 mm	14 mm
	Chrome Silicon	28.0 mm	20.8 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer # E11035 OR Ferrea Aluminum Magnesium Retainer # E10021
and Ferrea Spring Seat Locator # SL1006 (Discard OEM Spring Seat Locator)
S10064	Dual Spring - Turbo	22.93 mm	17.2 mm	95 lbs	215 lbs	305 lbs	19 mm	14 mm
	Special Alloy-	30 mm	22.93 mm	@34 mm	@24 mm
	Hi Pressure
This Spring requires Ferrea Titanium Retainer # E11000 and Ferrea Spring Seat Locator # SL1000
(Discard OEM Spring Seat Locator)
S10070	Dual Spring -	22.85 mm	17.5 mm	80 lbs	190 lbs	279 lbs	18 mm	14 mm
	Special Alloy	30.45 mm	22.85 mm	@33 mm	@23 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11000 and BOTH Ferrea Spring Seat Locator # SL1003
AND Factory supplied Spring Seat Locator.
S10104	Dual Spring - Turbo -	23.10 mm	17.2mm	80 lbs	195 lbs	292 lbs	20 mm	13.5 mm
	PAC enhanced Alloy	30mm	23.10mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11000 OR E11000LW OR Ferrea Aluminum
Magnesium Retainer # E10018 and Ferrea Spring Seat Locator # SL1003 (Discard OEM Spring Seat Locator)
HONDA S 2000 - F20C - 1999-2003
S10074	Dual Spring -	22.85 mm	17.5 mm	80 lbs	195 lbs	292 lbs	18 mm	14 mm
	Special Alloy Turbo -	30.45 mm	22.85 mm	@33 mm	@23 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11045 and Ferrea Spring Seat Locator # SL1035
AND Factory supplied Spring Seat Locator.
HYUNDAI TIBURON 4 CYL - DOHC 16 VALVES -
S10094	Dual Spring - Turbo	20.8 mm	15.88 mm	85 lbs	200 lbs	291 lbs	17 mm	19 mm
	Special Alloy	28.0 mm	20.8 mm	@32mm	@22mm
This Spring requires Ferrea Titanium Retainer # E11062 and Ferrea Spring Seat Locator # SL1050
(Discard OEM Spring Seat Locator)
HYUNDAI V-6 TIBURON
S10081	Single Spring -	25.19 mm	18.3 mm	80 lbs	150 lbs	180 lbs	20.5 mm	12.5 mm
	Special Alloy Turbo -			@34 mm	@24 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11049 and Ferrea Spring Seat Locator # SL1039
(Discard OEM Spring Seat Locator)
LOTUS ELISE / EXIGE 1.8L - DOHC 16 VALVE (2ZZ-GE) - 2008
S10123	Dual Spring -	19.05 mm	13.95 mm	75 lbs	180 lbs	274 lbs	24 mm	13.5 mm
	Special Alloy	25.30	19.05	@38.5 mm	@28.5 mm
This Spring requires Ferrea Titanium Retainer # E11097 and Ferrea Spring Seat Locator # SL1105
(Discard OEM Spring Seat Locator)
MAZDA 626 V6 2.5 L - DOHC KL - 1993-1998
S10050	Dual Spring - Turbo	18.23 mm	13.4 mm	75 lbs	195 lbs	305 lbs	19 mm	13.5 mm
	Special Alloy	24.70 mm	18.23 mm	@ 33 mm	@ 23 mm
This Spring requires Ferrea Titanium Retainer # E11026 and Ferrea Spring Seat Locator # SL1022
(Discard OEM Spring Seat Locator)
MAZDA MIATA 1.6L (B6) / 1.8L - DOHC 16 VALVE (BP056) - 1990-1997 (Hydraulic Buckets)
Parts for these applications are no longer offered as stock items due to changes in valvetrain components over their production span. made parts.
These items must be ordered as custom
MAZDA MIATA 1.8L - DOHC 16 VALVE (BP056) - 1994-2002 (Hydraulic & Solid Buckets)
Parts for these applications are no longer offered as stock items due to changes in valvetrain components over their production span.
These items must be ordered as custom made parts.
MINI COOPER S - 16 VALVE - 2002-2004
S10111	Dual Spring - Turbo	18.20 mm	13.4 mm	95 lbs	210 lbs	292 lbs	30 mm	10.5 mm
	Special Alloy	24.70 mm	18.20 mm	@42.5mm	@32.5mm
This Spring requires Ferrea Titanium Retainer # E11080 Ferrea Spring Seat Locator # SL1067 AND Factory
supplied Spring Seat Locator.
MITSUBISHI 3000 GT 3.0L - DOHC 24 VALVES (6G72-TURBO 6G72T) - 1991-1998
S10037	Dual Spring - Turbo -	23.10 mm	17.2mm	80 lbs	195 lbs	292 lbs	20 mm	13.5 mm
	PAC enhanced Alloy	30mm	23.10mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11053 OR Ferrea Aluminum Magnesium Retainer # E10023
and Ferrea Spring Seat Locator # SL1008 (Discard OEM Spring Seat Locator)
MITSUBISHI ECLIPSE GS-GST 2.0L - DOHC 16 VALVE (4G63-4G63T) - 1990-2000
S10031	Dual	23.1 mm	17.35 mm	90 lbs	210 lbs	305 lbs	21 mm	15 mm
	Chrome Silicon	31 mm	23.1 mm	@ 38 mm	@ 28 mm
This Spring requires Ferrea Titanium Retainer # E11005 and Ferrea Spring Seat Locator # SL1002
(Discard OEM Spring Seat Locator)
S10036	Dual Spring - Turbo	22.75 mm	17.1 mm	80 lbs	180 lbs	254 lbs	20 mm	13.5 mm
	Special Alloy	29.5 mm	22.75 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11005 OR Ferrea Aluminum Magnesium Retainer # E10024
and Ferrea Spring Seat Locator # SL1009 (Discard OEM Spring Seat Locator)
MITSUBISHI EVOLUTION X 2.0L - DOHC 16 VALVE (4B11T) - 2007-2009
S10118	Dual Spring - Endurance	20.08 mm	16.51 mm	75 lbs	175 lbs	254 lbs	(*)	12 mm
	Special Alloy	28 mm	20.8 mm	@6 mm	@26 mm
This Spring requires Ferrea Titanium Retainer #E11089 AND Ferrea Spring Seat Locator #SL1096 AND OEM Factory supplied Spring Seat Locator.
NOTE: (*)Max Net Lift is limited by the OEM Factory hat style seat/seal locator height, so Spring Coil Bind does not apply.
MITSUBISHI LANCER EVOLUTION 2L - DOHC 16 VALVE (TURBO 4G63T) - 2003
S10084	Dual Spring - Turbo	22.85 mm	17.5 mm	95 lbs	225 lbs	327 lbs	18 mm	12.5 mm
	Special Alloy	30.45 mm	22.85 mm	@30.6 mm	@20.6 mm
This Spring requires Ferrea Titanium Retainer # E11052 and Ferrea Spring Seat Locator # SL1041.
NISSAN 300 ZX 3.0L - DOHC 24 VALVE (VG30D-TURBO VG30DTT) - 1990-1996
S10039	Dual Spring	20.8 mm	15.3 mm	80 lbs	200 lbs	305 lbs	22 mm	13 mm
	Chrome Silicon	28.0 mm	20.8 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer # E11017 and BOTH Ferrea Spring Seat Locator # SL1012
and Factory supplied Spring Seat Locator
NISSAN 350 Z 3.5 L - V-6 - DOHC 24 VALVE (VQ35) - 2003
S10091	Single Spring	25.19mm	18.3mm	75 lbs	145 lbs	178 lbs	20.5 mm	12.5 mm
	Special Alloy - Turbo			@34.8mm	@24.8mm
	Endurance Application
This Spring to be used with Factory Valves with recess tip and Ferrea Titanium Retainer # E11060
AND Factory supplied Spring Seat Locator
S10093	Single Spring	25.19mm	18.3mm	85 lbs	155 lbs	178 lbs	20.5 mm	12.5 mm
	Special Alloy - Turbo			@34mm	@24mm
	Endurance Application
This Spring to be used with Ferrea Lightweight Valves without recess tip and Ferrea Titanium Retainer # E11058
AND Ferrea Spring Seat Locator # SL1048
S10103	Dual Spring -	20.8 mm	15.88mm	80 lbs	200 lbs	305 lbs	19 mm	13 mm
	Special Alloy - Turbo	28.0 mm	20.8 mm	@34mm	@24mm
	Street/Drag
This Spring to be used with Ferrea lightweight Valves without recess tip.
This spring requires Ferrea Titanium Retainer #E11079 AND Ferrea Spring Seat Locator #SL1065.
(Discard OEM Spring Seat Locator).
NISSAN ALTIMA 2.4L - DOHC 16 VALVE (KA24DE) - 1995-1999
NISSAN 240 SX 2.4L - DOHC 16 VALVE (KA24DE) - 1991-1998
S10043	Dual Spring - Turbo	23.10 mm	17.2 mm	80 lbs	195 lbs	254 lbs	22 mm	12.5 mm
	PAC enhanced Alloy	30 mm	23.10 mm	@36 mm	@26 mm
This Spring requires Ferrea Titanium Retainer # E11021 and BOTH Ferrea Spring Seat Locator #SL1064 and
Factory supplied Spring Seat Locator
NISSAN PATROL 4.8L 6 CYL IN LINE - 24 VALVE - (TB48DE)
S10114	Dual Spring - Turbo	20.8 mm	16.51 mm	85 lbs	190 lbs	266 lbs	22.85 mm	12 mm
	Special Alloy	28.0 mm	20.8 mm	@36.85mm	@26.85mm
This Spring requires Ferrea Titanium Retainer # E11083 and Ferrea Spring Seat Locator # SL1070
Discard OEM Factory supplied Spring Seat Locator.
NISSAN SENTRA SE-R 2.0L - DOHC 16 VALVE (SR20DE-SR20DET) - 1991-1998
S10038	Dual Spring - Turbo	23.10 mm	17.2 mm	80 lbs	195 lbs	254 lbs	22 mm	12.5 mm
	PAC enhanced Alloy	30 mm	23.10 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11002 and Ferrea Spring Seat Locator # SL1011
(Discard OEM Spring Seat Locator)
NISSAN SENTRA SE-R 2.5L - SPEC V - QR25 - 2002
S10083	Single Spring - Turbo	25.19 mm	18.4 mm	80 lbs	150 lbs	180 lbs	20.5 mm	12.5 mm
	Special Alloy			@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11051 and Factory supplied Spring Seat Locator.
NISSAN SKYLINE 6 CYL IN LINE - 24 VALVE - (RB25DET) - 1993-1997
S10112	Dual Spring - Turbo	20.8 mm	16.51 mm
	Special Alloy	28.0 mm	20.8 mm
		INTAKE ASSEMBLY		110 lbs	215 lbs	266 lbs	18 mm	10.5 mm
				@ 30.55 mm	@ 20.55 mm
		EXHAUST ASSEMBLY		90 lbs	190 lbs	254 lbs	21.5 mm	10.5 mm
				@ 34.50 mm	@ 24.50 mm
This Spring requires Ferrea Titanium Retainer # E11082 and Ferrea Spring Seat Locator #SL 1068 (EXH Side) and
Ferrea Spring Seat Locator #SL1069 (INT Side). (Discard OEM Spring Seat Locator)
WARNING: DUE TO VALVETRAIN ASSEMBLY INSTALLED HIEGHTS MAXIMUM VALVE NET LIFT MUST NOT EXCEED
10.5 MM BECAUSE OF VALVE SEAL TO SPRING RETAINER CLEARANCES.
NISSAN SKYLINE 6 CYL IN LINE - 24 VALVE (RB 25) - 2002
S10078	Dual Spring - Turbo	20.8 mm	16.51 mm	95 lbs	195 lbs	254 lbs	17.5 mm	12 mm
	Special Alloy	28.0 mm	20.8 mm	@30 mm	@20 mm
This Spring requires Ferrea Titanium Retainer # E11048 and BOTH Ferrea Spring Seat Locator # SL1037
AND Factory supplied Spring Seat Locator. Maximum Retainer Step 2 mm
NISSAN SKYLINE 6 CYL IN LINE - 24 VALVE - (RB26) - 1992-2001
S10090	Dual Spring - Turbo	20.8 mm	16.51 mm	110 lbs	210 lbs	254 lbs	26.5 mm	12 mm
	Special Alloy	28.0 mm	20.8 mm	@39mm	@29mm
This Spring requires Ferrea Titanium Retainer # E11057 and Ferrea Spring Seat Locator # SL1047
(Discard OEM Spring Seat Locator)
SATURN LLO 1.9L - 1991-1998
S10059	Dual Spring - Turbo	20.8 mm	15.88 mm	87lbs	195 lbs	285 lbs	21.5 mm	12.5 mm
	Special Alloy	28 mm	20.8 mm	@ 36 mm	@ 26 mm
This Spring requires Ferrea Titanium Retainer # E11036 and Factory supplied Spring Seat Locator.
to be used with 7 mm valve stem only.
S10060	Dual Spring - Turbo	23.10 mm	17.2 mm	95 lbs	220 lbs	317 lbs	20 mm	13.5 mm
	PAC enhanced Alloy	30 mm	23.10 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titan Retainer # E11038 OR Ferrea Alum-Magne Retainer #E10028 and Ferrea
Spring Seat Locator # SL1029 (Discard OEM Seat Locator). to be used with 5.5 mm valve stem only.
SCION tC 2.4L - DOHC 16 VALVE (2AZFE) - 2005
S10110	Single Spring - Turbo	25.19 mm	18.3 mm	80 lbs	150 lbs	180 lbs	20.5 mm	12.5 mm
	Special Alloy			@34.2 mm	@24.2 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11075 and Ferrea Spring Seat Locator # SL1063
(Discard OEM Spring Seat Locator)
SUBARU WRX - EJ20 - 2000-2003
S10071	Dual Spring -	20.8 mm	15.88 mm	75 lbs	200 lbs	317 lbs	21.5 mm	15 mm
	Special Alloy	28 mm	20.8 mm	@39.4 mm	@29.4 mm
	Turbo - Drag Racing
This Spring requires Ferrea Titanium Retainer # E11043 and Ferrea Spring Seat Locator # SL1034
(Discard OEM Spring Seat Locator)
S10072	Dual Spring -	20.8 mm	16.51 mm	70 lbs	165 lbs	241 lbs	20 mm	15 mm
	Special Alloy Turbo -	28 mm	20.8 mm	@39.4 mm	@29.4 mm
	Endurance Spring
This Spring requires Ferrea Titanium Retainer # E11044 and Ferrea Spring Seat Locator # SL1034
(Discard OEM Spring Seat Locator)
SUBARU WRX - STI - 2004
S10097	Dual Spring-Special Alloy	20.8 mm	15.88 mm	90 lbs	215 lbs	317 lbs	21.5 mm	14 mm
	Turbo - Drag Racing	28 mm	20.8 mm	@36 mm	@26 mm
This Spring requires Ferrea Titanium Retainer # E11064 and Ferrea Spring Seat Locator # SL1051
(Discard OEM Spring Seat Locator)
S10098	Dual Spring-Special Alloy	20.8 mm	16.51 mm	80 lbs	180 lbs	254 lbs	21.0 mm	14 mm
	Turbo-Endurance Racing	28 mm	20.8 mm	@36 mm	@26 mm
This Spring requires Ferrea Titanium Retainer # E11065 and Ferrea Spring Seat Locator # SL1051
(Discard OEM Spring Seat Locator)
SUBARU 2.5 L - EJ25D - 1996-1998
S10079	Dual Spring -	20.8 mm	16.51 mm	90 lbs	190 lbs	254 lbs	21.5 mm	12.5 mm
	Special Alloy Turbo -	28 mm	20.8 mm	@33 mm	@23 mm
	Drag Racing
This Spring requires Ferrea Titanium Retainer # E11044 and Ferrea Spring Seat Locator # SL1038
(Discard OEM Spring Seat Locator)
TOYOTA 4AG 1.6 L (ATLANTIC) - 1983-1988
S10080	Single Spring -	23.5 mm	16.46 mm	40 lbs	120 lbs	203 lbs	22 mm	12 mm
	Special Alloy			@35 mm	@25 mm
This Spring requires Ferrea Titanium Retainer # E11046 and Factory supplied Spring Seat Locator.
TOYOTA MR2 2.0L - DOHC 16 VALVE (TURBO 3SGTE) - 1990-1995
S10034	Dual	20.8 mm	16.51 mm	65 lbs	185 lbs	305 lbs	20 mm	14 mm
	Chrome Silicon	28.0 mm	20.8 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Aluminum Magnesium Retainer # E10022 and BOTH Ferrea Spring Seat Locator
# SL1007 and Factory supplied Spring Seat Locator.
TOYOTA 1.8L DOHC 16 VALVE (2ZZGE) 2003-2006
S10123	Dual Spring - Endurance	19.05 mm	13.95 mm	70 lbs	178 lbs	274 lbs	24 mm	13.5 mm
	Special Alloy	25.30 mm	19.05mm	@38.5 mm	@28.5 mm
This Spring requires Ferrea Titanium Retainer # E11097 and Ferrea Spring Seat Locator # SL1105
(Discard OEM Factory supplied Spring Seat Locator)
TOYOTA 2.0 L - 3SGE ENGINE -
S10073	Dual Spring - Turbo	20.8 mm	15.88 mm	87 lbs	195 lbs	285 lbs	21.5 mm	12.5 mm
	Special Alloy	28.0 mm	20.8 mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11042 and Ferrea Spring Seat Locator # SL1032
(Discard OEM Spring Seat Locator)
TOYOTA FJ CRUISER V6 4L - DOHC 24 VALVE (1GR-FE) - 2006-2008
S10127	Double Spring-Special Alloy	20.8 mm	16.51 mm	75 lbs	180 lbs	266 lbs	19.5 mm	13 mm
	Endurance	28.0 mm	20.8mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11042 and Ferrea Spring Seat Locator # SL1110
(Discard OEM Spring Seat Locator)
S10132	Single Spring-Special Alloy	25.19mm	18.30 mm	70 lbs	130 lbs	152 lbs	21 mm	13 mm
	Endurance			@36 mm	@26 mm
This Spring requires OEM Steel Retainers and OEM Spring Seat Locators.
TOYOTA LANDCRUISER 4.5L - DOHC 24 VALVE (1FZFE) - 1993-1997
S10126	Double Spring-Special Alloy	20.8 mm	16.51 mm	75 lbs	175 lbs	254 lbs	17 mm	16 mm
	Endurance	28.0 mm	20.8mm	@33 mm	@23 mm
This Spring requires Ferrea Titanium Retainer # E11096 and Ferrea Spring Seat Locator # SL1109
(Discard OEM Factory supplied Spring Seat Locator)
S10131	Single Spring-Special Alloy	28 mm	20.8 mm	67 lbs	150 lbs	210 lbs	17 mm	13 mm
	Endurance			@31 mm	@21 mm
This Spring requires OEM Steel Retainers and Ferrea Spring Seat Locator # SL1114
(Discard OEM Factory supplied Spring Seat Locator)
TOYOTA SUPRA 3.0L - DOHC 24 VALVE (7MGE-TURBO 7MGTE) - 1986-1992
S10120	Dual Spring - Endurance	19.05 mm	13.95 mm	70 lbs	180 lbs	280 lbs	20 mm	13 mm
	Special Alloy	25.30 mm	19.05mm	@34 mm	@24 mm
This Spring requires Ferrea Titanium Retainer # E11095 and Ferrea Spring Seat Locator # SL1104
(Discard OEM Spring Seat Locator)
TOYOTA SUPRA 3.0L I/L 6 CYL - DOHC 24 VALVE (2JZGE-2JZGTE) - 1994-1998
S10033	Dual	20.8 mm	16.51 mm	65lbs	185 lbs	305 lbs	20 mm	14 mm
	Chrome Silicon	28.0 mm	20.8 mm	@ 35 mm	@ 25 mm
This Spring requires Ferrea Titanium Retainer # E11011 and BOTH Ferrea Spring Seat Locator # SL1001 and
Factory supplied Spring Seat Locator
S10045	Dual Spring - Turbo	20.8 mm	15.88 mm	87 lbs	195 lbs	285 lbs	21.5 mm	12.5 mm
	Special Alloy	28.0 mm	20.8 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11037 and BOTH Ferrea Spring Seat Locator # SL1001 and
Factory supplied Spring Seat Locator
NOTE: For HIGH PRESSURE use BOTH Ferrea Spring Seat Locator # SL1001 AND #SL1060. (Discard OEM Spring Seat Locator)
HIGH PRESSURE VALUES SPEC			100 lbs	225 lbs		22 mm	10.5 mm
			@34mm	@24 mm
S10109	Dual Spring - Turbo	20.8 mm	15.88 mm	115 lbs	245 lbs	330 lbs	21.8 mm	11 mm
	High Pressure	28.0 mm	20.8 mm	@ 34 mm	@ 24 mm
	PAC Alloy
This Spring requires Ferrea Titanium Retainer # E11037 and TWO Ferrea Spring Seat Locators: #SL1001 and #SL1060
(Discard OEM Spring Seat Locator)
TOYOTA SUPRA 3.0L - DOHC 24 VALVE (7MGE-TURBO 7MGTE) - 1986-1992
S10044	Dual Spring - Turbo	18.23 mm	13.4 mm	67 lbs	177 lbs	280 lbs	19 mm	14 mm
	Special Alloy	25.19 mm	18.23 mm	@ 34 mm	@ 24 mm
This Spring requires Ferrea Titanium Retainer # E11022 and Ferrea Spring Seat Locator # SL1016
(Discard OEM Spring Seat Locator)
VW 1.8T - DOHC 20 VALVE - 1998-2005
S10055	Single Spring - Turbo	21.5 mm	15.1 mm	65 lbs	145 lbs	216 lbs	22.5 mm	11 mm
	Special Alloy			@34.5 mm	@24.5 mm
	(Intake - 12 pieces)
	This Spring requires Ferrea Titanium Retainer # E11031 and Ferrea Spring Seat Locator # SL1025.
	(Discard OEM Spring Seat Locator)
S10056	Dual Spring - Turbo	22.75 mm	17.1 mm	80 lbs	180 lbs	254 lbs	20 mm	12 mm
	Special Alloy	29.5 mm	22.75 mm	@32.5 mm	@22.5 mm
	(Exhaust - 8 pieces)
	This Spring requires Ferrea Titanium Retainer # E11032 and Ferrea Spring Seat Locator # SL1026.
	(Discard OEM Spring Seat Locator)
VW BEETLE/GOLF/JETTA/RABBIT 2.5L - DOHC 20 VALVE (BTW) - 2005- 1/2 2009
S10124	Single Spring-Special Alloy	23.5 mm	15.8 mm	90 lbs	200 lbs	279 lbs	27 mm	11 mm
	Turbo Endurance			@39 mm	@29 mm
This Spring requires Ferrea Titanium Retainer # E11093 and Ferrea Spring Seat Locator #SL1103
(Discard OEM Factory Supplied Spring Seat Locator)
NOTE: Max Net Lift is limited by the Factory installed height and rocker arm bottom clearance with Ferrea Titanium Retainer
VW GOLF / JETTA 1.8 L - DOHC 16 VALVE (PL) - 1987-1989
VW SCIROCCO 1.8 L - DOHC 16 VALVE (PL) - 1986-1988
S10115	Dual Spring	22.75 mm	17.1 mm	85 lbs	205 lbs	304 lbs	17.5 mm	14 mm
	Special Alloy	29.5 mm	22.75 mm	@33 mm	@23 mm
	Endurance Application
This Spring requires Ferrea Titanium Retainer # E11084 and Ferrea Seat Locator #SL1073
(Discard OEM Spring Seat Locator)
VW GOLF / JETTA 1.8 L - DOHC 16 VALVE (9A) - 1990-1992
VW PASSAT 2.0 L - DOHC 16 VALVE (9A) - 1990-1994
S10115	Dual Spring	22.75 mm	17.1 mm	85 lbs	205 lbs	304 lbs	17.5 mm	14 mm
	Special Alloy	29.5 mm	22.75 mm	@33 mm	@23 mm
	Endurance Application
This Spring requires Ferrea Titanium Retainer # E11084 and Ferrea Seat Locator #SL1073
(Discard OEM Spring Seat Locator)
VW VR6 2.8L - DOHC 12 VALVE - 1992-2002
S10062	Dual Spring - Turbo	22.75 mm	17.1 mm	95 lbs	195 lbs	254 lbs	19 mm	13 mm
	Special Alloy	29.5 mm	22.75 mm	@32 mm	@22 mm
This Spring requires Ferrea Titanium Retainer # E11039
VW VR6 2.8L - DOHC 24 VALVE (BDF) - 2002-2004
S10087	Single Spring	23.5 mm	15.7 mm	85 lbs	190 lbs	265 lbs	26 mm	12 mm
	Special Alloy			@39 mm	@29 mm
This Spring requires Ferrea Titanium Retainer # E11063.

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