Showing 1–12 of 29 results

  • Sale!
    $299.00 $295.00

    BTR .660″ Lift Dual Spring Kit W/ Titanium Retainers

    Includes dual polished springs, matching titanium retainers, your choice of locators for stock or bronze guides, locks and seals. Spring specs are 155 lbs @ 1.780″, 380 lbs @ 1.180″, 400 lbs @ 1.130, coil bind @ 1.070″ This is a drop in spring kit for all 15 degree LS heads including LS1 LS2 LS3 […]

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  • $359.00

    BTR .685″ LIFT SPRING KIT WITH TITANIUM RETAINERS

    .685″ Lift Dual Spring Kit for LS engines using Limited stock rocker arm setups and Roller Rockers.  Includes dual springs, matching titanium retainers,  locators for stock guides, locks and seals.   Spring specs are 170 lbs @ 1.800″, 380 lbs @ 1.180″, 450 lbs @ 1.115, coil bind @ 1.000″  This is a drop in […]

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  • $359.00

    BTR .685″ LIFT SPRING KIT WITH TITANIUM RETAINERS FOR LS7

    .685″ Lift Dual Spring Kit for LS7 engines using limited stock rocker arm setups and Roller Rockers.  Includes dual springs, matching titanium retainers, your choice of locators for Stock or bronze guides, locks and seals.   Spring specs are 170 lbs @ 1.800″, 380 lbs @ 1.180″, 450 lbs @ 1.115, coil bind @ 1.000″ […]

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  • BTR Chromoly Pushrods

    Chromoly One Piece Pushrods for LS, 5/16″ diameter, .080″ wall. These one piece precision formed pushrods are constructed from SAE 4130 chromoly tubing, centerless ground to exacting tolerances, and case hardened to Rc 60. Beware of competitors who say their pushrods are made from the same 4130 material, because some are not.

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  • $256.00

    BTR: .650″ LIFT 1515ML BEEHIVE VALVE SPRINGS (LS7)

    PSI 1515ML .650″ Lift Beehive Springs. Designed for LS7 and other 1.950″ installed height applications. 140 lbs @ 1.950″, 405 lbs @ 1.300″, Coil Bind 1.225″, 1.290″ OD, .630″ ID

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  • $299.00

    BTR: .650″ LIFT MAX PRESSURE SPRING KIT WITH TITANIUM RETAINERS (for ROLLER ROCKERS)

    THESE ARE FOR ROLLER ROCKERS .650″ Lift Dual Spring Kit for LS engines using roller rocker arms, or track only applications using stock rockers.  Includes springs, matching titanium retainers, your choice of locators for stock or bronze guides, locks and seals.  Spring specs are 150 lbs @ 1.800″, 420 lbs @ 1.200″ 450 lbs @ 1.150″ coil […]

  • $309.00

    BTR: .660″ Lift BTR Platinum LS9 Spring Kit; Titanium Ret., .505″ ID .060″ Thick Loc., Black Seals (SK006)

    .660″ Lift Dual Spring Kit for LS engines using stock rocker arms. Includes dual polished springs, matching titanium retainers, your choice of locators for stock or bronze guides, locks and seals. Spring specs are 155 lbs @ 1.780″, 380 lbs @ 1.180″, 400 lbs @ 1.130, coil bind @ 1.070″ This is a drop in […]

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  • BTR: .660″ LIFT PLATINUM SPRING KIT SK001

    .660″ Lift Dual Spring Kit for LS engines using stock rocker arms.  Includes dual polished springs, locks and your choice of: Titanium or Chromoly Steel Retainers Locators for Stock or Bronze Guides Valve Seals Spring specs are 155 lbs @ 1.780″, 380 lbs @ 1.180″, 400 lbs @ 1.130, coil bind @ 1.070″  This is […]

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  • $309.00

    BTR: .660″ LIFT PLATINUM SPRING KIT WITH TITANIUM RETAINERS FOR GEN V LT1/L83/L86

    .660″ Lift Dual Spring Kit for Gen V engines using stock rocker arms.  Includes dual polished springs, matching Gen V specific titanium retainers, your choice of locators for stock or bronze guides, locks and seals.   Spring specs are 155 lbs @ 1.780″, 380 lbs @ 1.180″, 400 lbs @ 1.130, coild bind @ 1.070″ […]

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  • $309.00

    BTR: .660″ LIFT PLATINUM SPRING KIT WITH TITANIUM RETAINERS FOR GEN V LT4

    .660″ Lift Dual Spring Kit for Gen V LT4 engines using stock rocker arms. Includes dual polished springs, matching LT4 specific titanium retainers, LT4 specific locators for stock guides, locks and seals. Spring specs are 155 lbs @ 1.780″, 380 lbs @ 1.180″, 400 lbs @ 1.130, coild bind @ 1.070″ This is a drop […]

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  • $369.00

    BTR: .685″ LIFT SPRING KIT WITH TITANIUM RETAINERS FOR GEN V LT1/L83/L86 SK707

    .685″ Lift Dual Spring Kit for LS engines using Limited stock rocker arm setups and Roller Rockers. Includes dual springs, matching titanium retainers, locators for stock guides, locks and seals. Spring specs are 170 lbs @ 1.800″, 380 lbs @ 1.180″, 450 lbs @ 1.115, coil bind @ 1.000″ This is a drop in spring […]

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  • $359.00

    BTR: .685″ LIFT SPRING KIT WITH TITANIUM RETAINERS FOR LS7 SK702

    .685″ Lift Dual Spring Kit for LS7 engines using limited stock rocker arm setups and Roller Rockers.  Includes dual springs, matching titanium retainers, your choice of locators for Stock or bronze guides, locks and seals.   Spring specs are 170 lbs @ 1.800″, 380 lbs @ 1.180″, 450 lbs @ 1.115, coil bind @ 1.000″ […]

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