Bare Small Block Chev 327-350-400 186cc Aluminium Cylinder Heads with 67cc Chamber (Pair) 2.00" x 1.20" Intake Port, 1.42" x 1.53" Exhaust Port

The Aeroflow Series of Aluminium Cylinder Heads are taking affordable performance street and strip cylinder heads to the next level. Theseheads utilise ultra-smooth A356-T6 aluminium castings, new as-cast runner and chamberdesigns produce excellent flownumbers. 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 small block Chevy cylinder heads are designed for entry level street performance engines to give the ultimate in flow at a budget price. Made from A356 aluminium castings, the 186cc cylinder heads are ideal for operating in the idle to 6500 rpm range. These cylinder heads will fit a 4.00" bore and larger.