Chevy SBC 350 1.940" STD 11/32" Stainless Steel Intake Valves It also features nitrous bosses

It also features nitrous bosses and rear water ports

greater resistance to tooth shear

while Cleveland/Modified covers are laser cut steel

Fits big block Chevy rectangular port cylinder heads on standard deck blocks

That latter characteristic translates into increased ground

Chevy SBC 350 1.940" STD 11/32" Stainless Steel Intake Valves It also features nitrous bossesWhen it's time for valves, don't cut corners. Get genuine Speedmaster stainless steel valves. They're made from a tough, stainless steel alloy and are carefully designed to increase gas flow for more power. What's more, they have hardened stem tips for durability and are swirl polished.