Aeroflow Bare Big Block Chev 396-454 320cc Aluminium Cylinder Heads with 120cc Chamber (Pair) 2.45" x 1.75" Intake Port, 1.75" x 2.00" Exhaust Port

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The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. These heads utilize ultra-smooth A356-T6 alumin ium 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. Show more