DOMESTIC - VALVE SPRINGS

Model Engine /Part Nº	Type/Material/Application	O.D.	I.D.	Seat Press.	Open Press.	Rate Inch	Coil Bind	Max Net Lift
DIAMETERS 1.650" TO 1.600"
S10000	Triple Spring	.885	.645	330 lbs	950 lbs	680 lbs	1.140"	.900"
	Pacalloy	1.200	.885	@2.100"	@1.200"
	Roller	1.650	1.200
S10001	Triple Spring	.885	.640	320 lbs	865 lbs	680 lbs	1.140"	.850"
	Pacalloy	1.200	.885	@2.025"	@1.225"
	Roller	1.650	1.200
S10002	Triple Spring	.885	.640	285 lbs	790 lbs	680 lbs	1.140"	.800"
	Pacalloy	1.200	.885	@2.000"	@1.250"
	Roller	1.650	1.200
S10003	Dual w/Damper	1.080	.767	250 lbs	675 lbs	570 lbs	1.150"	.750"
	H11 Tool Steel	1.625	1.189	@1.950"	@1.200"
	Roller
S10004	Dual w/Damper	1.065	.770	230 lbs	600 lbs	550 lbs	1.200"	.700"
	Chrome Silicon	1.625	1.175	@2.000"	@1.300"
	Roller
S11004	Dual w/Damper	1.065	.770	250 lbs	675 lbs	550 lbs	1.180"	.750"
	Special Alloy Roller	1.625	1.175	@2.020"	@1.270"
S10023	Dual w/Damper	1.065	.770	240 lbs	685 lbs	550 lbs	1.150"	.750"
	Special Alloy	1.625	1.175	@2.000"	@1.250"
S10005	Dual w/Damper	1.064	.760	210 lbs	695 lbs	675 lbs	1.050"	.700"
	Vasco Jet. Roller	1.624	1.164	@1.900"	@1.200"
S10076	Dual Spring -	1.160	.835	262 lbs	640 lbs	540 lbs	1.220"	.750"
	Special Alloy	1.610	1.160	@2.000"	@1.300"
	Endurance Spring
	This Spring requires Ferrea Titanium Retainer # E11047LW. Maximum Retainer Step: .100"
DIAMETERS 1.570" TO 1.225"
S10022	Dual w/Damper	1.025	.740	230 lbs	620 lbs	540 lbs	1.175"	.720"
	Vasco Jet. Roller	1.570	1.135	@1.950"	@1.225"
S10030	Dual w/Damper	1.025	.570	250 lbs	650 lbs	600 lbs	1.125"	.660"
	Special Alloy	1.570	1.135	@ 1.900"	@ 1.200"
S11016	Dual	1.153	.820	245 lbs	590 lbs	490 lbs	1.150"	.700"
	Special Alloy Roller	1.560	1.155	@1.950"	@1.250"
S10015	Dual w/Damper	1.040	.740	240 lbs	600 lbs	500 lbs	1.180"	.720"
	Special Alloy	1.560	1.145	@2.000"	@1.280"
	Endurance Roller
S11011	Dual w/Damper	1.040	0.740	245 lbs	585 lbs	480 lbs	1.190"	.680"
	Special Alloy Roller	1.560	1.145	@1.970"	@1.290"
S11012	Dual w/Damper	1.040	.740	245 lbs	585 lbs	470 lbs	1.170"	.680"
	Special Alloy Roller	1.560	1.145	@1.950"	@1.270"
S11014	Dual w/Damper	1.040	.740	195 lbs	540 lbs	500 lbs	1.175"	.700"
	Special Alloy	1.560	1.145	@1.975"	@1.275"
	W Cup Flat Tapped
S11015	Dual w/Damper	1.040	.740	245 lbs	600 lbs	500 lbs	1.200"	.700"
	Special Alloy Roller	1.560	1.145	@2.000"	@1.300"
S10021	Dual Pacalloy	1.135	.815	235 lbs	635 lbs	530 lbs	1.150"	.720"
	Roller	1.550	1.135	@1.950"	@1.200"
S10014	Dual w/Damper	1.025	.740	210 lbs	520 lbs	480 lbs	1.130"	.660"
	Chrome Silicon	1.550	1.135	@1.900"	@1.240"
	Roller
S10011	Dual w/Damper	1.025	.740	165 lbs	465 lbs	470 lbs	1.150"	.650"
	Chrome Silicon	1.550	1.135	@1.950"	@1.300"
	Roller
S10012	Dual w/Damper	1.025	.740	215 lbs	550 lbs	460 lbs	1.170"	.680"
	Chrome Silicon	1.550	1.135	@1.950"	@1.270"
	Roller
S10010	Dual w/Damper	1.040	.755	170 lbs	463 lbs	435 lbs	1.175"	.675"
	Chrome Silicon	1.550	1.130	@1.950"	@1.275"
	Roller or Flat
S10009	Dual w/Damper	1.005	.730	135 lbs	395 lbs	400 lbs	1.160"	.650"
	Chrome Silicon	1.530	1.110	@1.875"	@1.225"
	Hydraulic & Solid
S10025	Dual w/Damper	1.005	.730	140 lbs	430 lbs	440 lbs	1.170"	.650"
	Chrome Silicon	1.530	1.110	@ 1.900"	@ 1.250"
	Flat & Hydraulic
S10008	Dual w/Damper	1.005	.725	170 lbs	368 lbs	320 lbs	1.110"	.620"
	Chrome Silicon	1.430	1.070	@1.830"	@1.210"
	Flat or Hydraulic
S10006	Dual w/Damper	1.005	.730	135 lbs	285 lbs	275 lbs	1.120"	.550"
	Chrome Silicon	1.430	1.070	@1.750"	@1.200"
	Hydraulic & Solid
S10007	Dual Spring	.925	.660	130 lbs	306 lbs	320 lbs	1.020"	.550"
	Chrome Silicon	1.240	.915	@1.690"	@1.090"
	Flat or Hydraulic
CHEVROLET SMALL BLOCK - LS1
S10042	Outer w/Damper	1.260	.886	130 lbs	320 lbs	350 lbs	1.150"	.550"
	Special Alloy			@ 1.750"	@ 1.200"
	This Spring requires Ferrea Titanium Retainer # E11020 and Ferrea Spring Seat Locator # SL1030
S10048	Outer w/Damper	1.260	.880	130 lbs	370 lbs	436 lbs	1.040"	.660"
	Super Alloy			@ 1.750"	@ 1.200"
	This Spring requires Ferrea Titanium Retainer # E11020 and Ferrea Spring Seat Locator # SL1030
S10061	Outer w/Damper.	1.270	.890	155 lbs	420 lbs	408 lbs	1.060"	.660"
	Super Alloy			@ 1.750"	@ 1.100"
	Endurance Application
	This Spring requires Ferrea Titanium Retainer # E11020 and Ferrea Spring Seat Locator # SL1030
S10075	Dual Spring.	.876	.635	175 lbs	470 lbs	536 lbs	1.030"	.600"
	Special Alloy	1.260	.876	@ 1.750"	@ 1.200"
	Endurance Application
	This Spring requires Ferrea Titanium Retainer # E12000 and Ferrea Spring Seat Locator # SL1036
S99100	Dual Spring. Pro PAC Alloy	.925	.650	150 lbs	475 lbs	464 lbs	1.030"	.700"
	Endurance Application	1.275	.925	@ 1.800"	@ 1.100"
	This Spring requires Ferrea Titanium Retainer # E12000 and Ferrea Spring Seat Locator # SL1036
CHEVROLET SMALL BLOCK - LS1/LS7 (5/16 CONVERSION KIT)
S99101	Dual Spring. Pro PAC Alloy	.925	.650	150 lbs	475 lbs	464 lbs	1.030"	.700"
	Endurance Application	1.275	.925	@ 1.800"	@ 1.100"
	This Spring requires Ferrea Titanium Retainer # E12001 and Ferrea Spring Seat Locator # SL1036 AND Ferrea
	Valve Guide # VG1061 (For 5/16 stem diameter valves).
CHEVROLET SMALL BLOCK - L92
S99102	Dual Spring. Pro PAC Alloy	.925	.650	150 lbs	425 lbs	558 lbs	1.030"	.700"
	Endurance Application	1.275	.925	@ 1.750"	@ 1.150"
	This Spring requires Ferrea Titanium Retainer # E12002 and Ferrea Spring Seat Locator # SL1071 AND Ferrea
	Valve Guide (EXH #VG 1067) and (INT #VG1066)
	Dual Spring. Pro PAC Alloy	.925	.650	175 lbs	465 lbs	483 lbs	1.030"	.700"
	Racing Application	1.275	.925	@ 1.750"	@ 1.150"
	This Spring requires Ferrea Titanium Retainer # E12002 and Ferrea Spring Seat Locator # SL1072 AND Ferrea							Valve Guide (EXH #VG 1067) and (INT #VG1066)
FORD MUSTANG 4.6L - SOHC V8 24 VALVE - 2005
S10102	Dual Spring-Special Alloy	.819	.625	95 lbs	267 lbs	334 lbs	1.023"	.500"
	Street/Strip Applications	1.102	.819	@ 1.575"	@ 1.075”
	This Spring requires Ferrea Titanium Retainer # E11069 and BOTH Ferrea Spring Seat Locator # SL1055
	and Factory supplied Spring Seat Locator

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