Aeroflow Complete Big Block Chev 396-454 320cc Aluminium Cylinder Heads with 120cc Chamber (Pair) (AF95-2427)

AF95-2427 - BBC 396 427 454 *PAIR* ASSEMB.

2.45" x 1.75" Intake Port, 1.75" x 2.00" Exhaust Port

Part Number: AF95-2427

The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. These heads utilise ultra-smooth A356-T6 aluminium castings, new as-cast runner and chamber designs produce excellent flow numbers. This combined with a 5-angle competition valve job, diamond-honed bronze guides, hand bowl blending and professional assembly help to outperform some of the best brands in the business.
The Aeroflow Performance big block Chevy cylinder heads are designed for street / race performance engines to give the ultimate in flow at a competitive price. These heads flow 364cfm! Best suited for high revving 454, or 502ci up Big Blocks. Made from A356 aluminium castings, these rectangle port 320cc cylinder heads are ideal for operating in the idle to 6750 rpm range. The complete heads include larger then stock 1.625" diameter dual valve spring to handle up to .850". Suits solid roller camshafts.

Important Information: We recommend to check installed spring seat pressure & open pressure before installing your cylinder heads to make sure the spring pressure is correct for your application.