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INTAKE CHAMBER VALVE SIZES EXHAUST BORE INTAKE
300 0
detonation
880 Standard Exhaust Valve Moved
AFR 2020 BBC 385/121CC .725/.850 COMPLETE WITH HYDRAULIC OR SOLID ROLLER SPRINGS injection INTAKE CHAMBER VALVE SIZES EXHAUSTCALL SHANON AT 507 445 3235 WITH ANY QUESTIONS. Our largest and best flowing big block chevy cylinders heads, these cylinder heads feature 100% CNC machined intake runners, exhaust ports and combustion chambers. Best suited for +540 cubic inch large displacement racing engines, operating at or below 7600 RPM. Equipped with Titantium retainers and high quality components, these heads are capable of flowing 456 CFM at 0. 900" of lift. 385cc Aluminum BBC
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