BTR .685" LIFT DUAL SPRING KIT. 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 kit for all 15 degree LS heads including LS1 LS2 LS3 LS4 LS6 L76 L92 L99 LQ4 LQ9 L33 LSA, etc. This kit will not fit LS9 engines, please

Conical design offers the best natural frequency damping

the McLeod RXT Street Twin Clutch kit is an economically priced twin disc clutch kit that does not require a dedicated flywheel (you use your existing flywheel) in most applications

Utilizes true mitered merge collectors to maximize exhaust velocity and scavenging

Part Number ARP 234-4319 Part Type Head Stud Brand ARP Engine Type LSX/RHS (6-Bolt) Hardware Style 12-Point

Upgraded hardware architecture: New internal processor for improved data throughput and flashing performance

5” Tall) for easy installation on frame rails or other tight areas

5psi (3 bar)

enabling a hassle-free plug-in operation

Part Number 25-1012

Corrosion resistant internals make it compatible with all known fuels

Their headers are mandrel bent

5 92-805257DP