Chevy Big Block BBC Aluminum Cylinder Head - 396 427 454 502 - 320cc rectangular ports free shipping paypal / cards
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Stud Base Thread Drilled: .44"
Valve Guides: Bronze Manganese
Valve 3 Angle Job
Suitable Valve Details
Intake Valves: 2.25"
Exhaust Valves: 1.88"
Valve Stem Diameter: 11/32" / 0.3415"
Valves: Stainless Steel
Height: Standard + .100"
Spring including dampener
CFM Intake Long Runner at .600 320.6 CFM
CFM Intake Short Runner at .600 317.0 CFM
CFM Exhaust at .600 232.9 CFM
Guides & Studs NOT Included
Disclaimer: Quantico Cylinder Heads Inc. is in no way affiliated with any OEM manufacturer. All OEM part numbers and logos are used for identification purposes only. Please inspect the parts that you ordered before installation.