SBC CNC 350 400 *PAIR* ASSEMB.S/P ALLOY CYLINDER HEADS 213cc

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 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 small block Chevy cylinder heads are designed for street / race performance engines to give the ultimate in flow at a competitive price. Made from A356-T6 aluminium castings, these 213cc cylinder heads feature full CNC ports and are ideal for operating in the idle to 7500 rpm range. These complete cylinder heads will fit a 4.00" bore and larger. They include larger then stock 1.57" diameter dual valve spring to handle up to .625" maximum lift. Suits mechanical and hydraulic roller camshafts.