These Small Block Chevy stainless steel roller rockers are built of 15-5PH material which gives you superior strength over other stainless rockers. They have more needle bearings which increases strength while reducing friction. Built to clear 1.55" valve springs.
- Designed for higher open valve spring pressures
- Strong 15-5PH stainless steel
- Specially cast and machined for larger valve springs and retainers
- Light weight with integral pushrod seat
- Oversize trunions and full roller precision needle and cage bearings
- More needle bearings for increased performance and rocker life
- CNC machined pushrod cups and heat-treated Cr40 roller tips
- Internal oiling system for long lasting performance
- H.D. Polylocks included