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item: Proflow Cylinder Heads LS SuperMax 273 Aluminium Rect Bare Cylinder Heads (6Bolt) 70cc Chamber 273cc 15deg LS3 For Chevrolet For Holden Pair
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 | 273 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 | 273 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 |
| SKU | pf-PFEAHCLS3-273-6BOLT-BA |
| Brand | PROFLOW |
| Shipping Weight | 50.0000kg |
| Shipping Width | 0.700m |
| Shipping Height | 0.300m |
| Shipping Length | 0.700m |
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