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AF4820-8223
ALY-115-1316BK
3/8-16" Header Bolts 1" UHL
consistent fuel pressure for your engine
Proflow Cylinder Heads, LS3 SuperMax 276 CNC, Bare, Holden, Chev Aluminium, (6-B BBC AF4820-8223Part Number : Proflow does not sacrifice quality for a low price you get both with our aluminium cylinder heads. Our LS3 cylinder heads are designed for street race performance engines to give the ultimate in flow at a competitive price. Cast from A356 aluminium, these 15 LS3 rectangle port heads are designed to fit LS series engines with a 4. 00" or larger bore. These bare 275cc heads accept 2. 165" diameter intake valves and 1. 60" exhaust valves
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