Proflow Cylinder Heads, LS SuperMax 276, Aluminium, Rect Bare Cylinder Heads (6Bolt) , 70cc Chamber, 273cc, 15deg, LS3 For Chevrolet For Holden, Pair
Part No:PFEAHCLS3-273-6B-B
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Proflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of engine, for SB & BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302, 351 Cleveland 2V & 3V & BB FE, and Chrysler SB & BB. They have phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, high performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. Perfect for your Mild or High performance Hot Rod. Use CC-6051 & 6053 valves
SPECIFICATIONS |
|
Combustion Chamber | 70 cc |
Intake Port Volume | 276 cc |
Exhaust Port Volume | 90 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” |
Proflow does not sacrifice quality for a low price--you get both with our aluminium cylinder heads. The lightweight heads are cast from A-356 aluminium alloy with a large choice of engine, for SB & BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302, 351 Cleveland 2V & 3V & BB FE, and Chrysler SB & BB. They have phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. The fully assembled heads have stainless steel valves, high performance valve springs, 7 degree valve locks, rocker arm studs, and guideplates. Perfect for your Mild or High performance Hot Rod. Use CC-6051 & 6053 valves
SPECIFICATIONS |
|
Combustion Chamber | 70 cc |
Intake Port Volume | 276 cc |
Exhaust Port Volume | 90 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” |