CHEVROLET DUAL VALVE SPRINGS

Available for the following applications:
• Big Block
• Small Block
• LS1
• LS7
• L92
• Endurance High Lift
• Flat Tappet & Hydraulic Roller
• Stock Eliminator
• 2.2 Ecotec
• 5 Cylinder - L5
Item# Description Qty. Price
S10017


V8 Small Block
Type/Material/Application: Outer w/Damper/Chrome Silicon
Outside Diameter: 1.26
Inside Diameter: 0.86
Seat Press.: 115 lbs @1.700
Open Press: 268 lbs @1.210
Rate Inch: 310 lbs
Coil Bind: 1.160
Max Net Lift: .490"

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$21.48
S99100


Small Block - LS1
Type/Material/Application: Dual Spring. Pro PAC Alloy/Endurance Application
Outside Diameter: 0.925/1.275
Inside Diameter: 0.650/0.925
Seat Press.: 150 lbs @ 1.800
Open Press: 475 lbs @ 1.100
Rate Inch: 464 lbs
Coil Bind: 1.030"
Max Net Lift: .700"
This Springrequires Ferrea Titanium Retainer #E12000 and Ferrea Spring Seat Locator #SL1036

ADD TO CART
$58.62
S99101


Small Block - LS1/LS7
(5/16 Conversion Kit)
Type/Material/Application: Dual Spring. Pro PAC Alloy/Endurance Application
Outside Diameter: 0.925/1.275
Inside Diameter: 0.650/0.925
Seat Press.: 150 lbs @ 1.800
Open Press: 475 lbs @ 1.100"
Rate Inch: 464 lbs
Coil Bind: 1.030
Max Net Lift: .700"
This Spring requires Ferrea Titanium Retainer #E12001 and Ferrea Spring Seat Locator #SL1036 AND Ferrea Valve Guide #VG1061 (For 5/16 stem diameter valves.)

ADD TO CART
$58.62
S99102

Small Block - L92
Type/Material/Appl: Dual Spring. Pro PAC Alloy/Endurance Application/Racing Application
Outside Diameter: 0.925/1.275
Inside Diameter: 0.650/0.925
Seat Press.: 150 lbs @ 1.750/170 lbs @ 1.800
Open Press: 425 lbs @ 1.150"/445 lbs @1.200"
Rate Inch: 458 lbs/458 lbs
1.030"/1.140"
Max Net Lift: .700"/.600"
This Spring requires Ferrea Titanium Retainer #E12002 and Ferrea Spring Seat Locator #SL1072 AND Ferrea Valve Guide (EXH #VG1067) & (INT #VG1066)

ADD TO CART
$58.62

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