Brian Tooley (BTR) .660" Dual Platinum Valve Spring Kit & 7.400" Pushrods (Set of 16)
This is the perfect kit to complete your cam swap, if you have already picked out your camshaft.
Kits ship standard with the following:
- BTR .660" Lift Dual Platinum Valve Springs (set of 16)
- Chromoly Steel Retainers
- Locators for Stock Guides (.505" ID/.060" Thick) - If another locator is desired, please message us.
- Black Valve Seals
- PLUS, 7.400" Chromoly One Piece Pushrods, 5/16" diameter, and .080" wall (set of 16)
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 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA, etc, this kit will also fit LS7 heads with approximately .045" of spring shim (part numbers SS015 and SS030).
These one piece precision formed pushrods are constructed from SAE 4130 chromoly tubing, centerless ground to exacting tolerances, and case hardened to RC60.
This kit will not fit LS9 engines, please use part number SK006 for LS9 heads.
NOTE: Other pushrod lengths are available from 7.200" to 7.900", please contact us if you need a different size than listed.
NOTE: 7.400" is the standard LS length, but any of the following can affect pushrod length required and each application may be different:
- Cylinder Head Deck Thickness
- Block Deck Height
- Valve Stem Length
- Rocker Arm Brand
- Cam Shaft Base Circle Diameter
- Lifter Design, Etc.
We highly recommend that you measure you particular application to determine correct pushrod length due to the number of variables involved. We cannot recommend a length based strictly on combination and the only way to determine required length is to measure appropriately.
