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: Material: A356 Aluminium Combustion Chamber: 70cc Intake Port Volume: 275cc Intake Port Dimension: 1.285" x 2.60" Exhaust Port Volume: 90cc Exhaust Port Dimension: 1.47" H x 1.64" W Spark Plug Location: OE Intake Valve Diameter: 2.165" x 4.89" Exhaust Valve Diameter: 1.59" x 4.89" Valve Stem Diameter: 8mm Valve Spring Pocket I.D.: 1.30" Valve Guide Material: Manganese Bronze Valve Guide O.D.: 0.502" (.560" at base) Rocker Design: LS3 Rails required Valve Angle: 15° Deck Thickness: 0.625"

(PFEAHCLS3PORT)

SKU PFEAHCLS3PORT
Barcode # 9338762125145
Brand Proflow
Shipping Weight 7.0000kg
Shipping Width 0.300m
Shipping Height 0.200m
Shipping Length 0.200m

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