Bare Aluminium Cylinder Heads (Pair), 315cc Runner with 121cc Chamber
Suit Big Block Chev, Rectangle Port
AF95-0427
 

Aeroflowäó»s big block Chevy cylinder heads are designed for entry-level street performance engines and ideal for operating in the idle to 6750 rpm range. Made from A356 aluminium castings. These complete heads include larger than-stock 1.625" (41mm) diameter valve spring with damper to handle up to 0.850" (21.5mm) maximum valve lift. Recommended spark plugs are 14mm x 3/4" reach with flat gasket seat.

Head Specifications: