As Summit’s Brian Nutter explained, “Summit has introduced 250 roller cams (hydraulic and solid) since 2018. We started with the Pro LS series with roughly 50 offerings, followed by Pro SBC, Pro BBC, ...
GM small-block Chevy Vortec heads deliver great performance per dollarbut theyre still only based on production pickup-truck castings. The iron heads are heavy. They have press-in rocker-arm studs ...