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proflow cylinder heads, ls supermax cnc 276, aluminium, bare cylinder (6-bolt ) ls3/l76/l77/l92/l98/lsx, 276cc intake, 70cc chamber, cnc ported, pair
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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 and have a 0.625" deck thickness. Suits 6-bolt standard or LSX block designs. SPECIFICATIONS Combustion Chamber 70 cc Intake Port Volume 276 cc Exhaust Port Volume 92 cc Exhaust Port Dimensions 1.47” (H) x 1.65” (W) Spark Plug Location OEM Intake Valve Diameter 2.165” Exhaust Valve Diameter 1.59” Valve Stem Diameter 8 mm Valve Spring Pocket ID 1.30” Valve Guide OD 0.502” (0.560” at base) Maximum Valve Lift 0.750” Rocker Stud Thread Size OE LS3 Style Valve Angle 15° Deck Thickness 0.625”
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Ad Id | JPFD5263999 |
Stock | PFEAHCLS3-276-6BOLT-BARE |
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