Chevy SBC 350 Vortec 180cc 64cc Straight Cast Iron Bare Cylinder Head capable of withstanding valve spring

capable of withstanding valve spring load up to 600lbs

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

Although the GM heads are good pieces

these Speedmaster valve locks will provide the reliability that you've been looking for

Chevy SBC 350 Vortec 180cc 64cc Straight Cast Iron Bare Cylinder Head capable of withstanding valve springAll 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.