Stage 1 and RPM+ High Lift Valvetrain Hardware Kit for Shredder Heads - Up to .450" Lift

This kit contains everything you'll need to assemble a Shredder head that can handle up to 0.450" lift. This is the valvetrain used in our RPM+ and Stage 1 heads, so if you have a standard Shredder head you can by this and convert it to an RPM+. 

SPECS:

28.5mm x 2.590" x 5.5mm stem intake valve

24mm x 2.570" x 5.5mm stem exhaust valve (sits 0.020" deeper in Shredder heads)

Competition Cams GP960 springs with 40lbs of seat pressure when installed at 0.947" 

2x 0.015" steel spring seats

Titanium retainers (lighter and stronger than aluminum with more fatigue resistance)

Steel medium groove keepers

Lightweight lash caps

Steel pushrod guide plate

1.2:1 ratio 0.095" thick stamped steel rocker arms with studs, lash adjusters, and locking nuts. **Rocker arms are safe up to .400" valve lift, but the lower opening can be ground on the valve side (not pushrod side) from .350" to .390" total length and they will support up to .450" lift without binding.** 

*Use for up to .450" lift on Shredder head*