Complete Small Block Chev 327-350-400 204cc Aluminium Cylinder Heads with 67cc Chamber (Pair)
2.22" x 1.31" Intake Port, 1.34" x 1.39" Exhaust Port

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. Include valves, valve springs, retainers & locks, guide plates and 7/16" rocker studs.

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 204cc cylinder heads are ideal for operating in the idle to 6500 rpm range. These cylinder heads will fit a 4.00" bore and larger. Theses complete heads include larger then stock 1.43" diameter dual valve springs to handle up to .575" maximum lift. Suits flat tappet and hydraulic camshafts.