Chevy SBC 350 Vortec 180cc 64cc Straight Cast Iron Bare Cylinder Head even in the most extreme

even in the most extreme applications

Speedmaster arm stud kits are made of 4140 Chromoly steel

each hose is meticulously wrapped in a durable 304 stainless steel braid

and durable

Although the GM heads are good pieces

Chevy SBC 350 Vortec 180cc 64cc Straight Cast Iron Bare Cylinder Head even in the most extremeAll Speedmaster 23deg. Small Block Chevy heads are available with Straight or Angled sparkplugs. Standard valve sizes are 2. 020 in. Intake, and 1. 600 in. Exhaust, both +. 100 in. length. While the 2. 02" valves are standard issue, all of our 23deg. aluminum heads can accept a 2. 050 in. intake valve with minimal additional work.