Bbc 396 427 454 *pair* Bare Alloy Cylinder Head Oval 290 cc

the series of aluminium cylinder heads are taking affordable Aeroflow performance street and strip cylinder heads to the next level. These heads utilize 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 Aeroflow performance engines to give the ultimate in flow at a competitive price. These heads flow 356cfm! best suited for high revving 454, or 502ci up big blocks. Made from a356 aluminium castings, these oval port 290cc cylinder heads are ideal for operating in the idle to 6750 rpm range.