Bare Gm Ls3 4-Bolt Cnc-Ported Aluminum Cylinder Heads – 276Cc Intake, 70Cc Chamber

Description

Bare GM LS3 4 Bolt 276cc CNC Ported Aluminium Cylinder Heads with 70cc Chamber (Pair)

2.60″ x 1.28″ Intake Port, 1.47″ x 1.64″ Exhaust Port

AF95-0415

95-0415

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.The Aeroflow Performance GM LS 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 and feature full CNC ports and combustion chambers. These 15° LS3 Rectangle Port heads are designed to fit LS series engines with a 4.00″ or larger bore. These bare 276cc heads accept 2.165″ diameter intake valves and 1.59″ exhaust valves and have a thicker than stock .625″ deck thickness. Available in OE 4-bolt design or 6-bolt design to suit standard or LSX block designs.Note: Thread sealant must be used on all rocker bolts as threads intersect with intake ports.

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