Proflow SuperMax Cylinder Heads Fits Commodore Complete Pair PFEAHH20063
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Proflow SuperMax Cylinder Heads Fits Commodore Complete Pair
Proflow Holden Commodore VN SuperMax Aluminium Heads Complete
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 and BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302,351 Cleveland 2V and 3V and BB FE, and Chrysler SB and BB, phosphorous bronze valve guides, and ductile iron valve seats for use with unleaded gas. They're also end-milled and drilled for accessories. These fully assembled heads have stainless steel valves and high performance valve springs. Perfect for your Mild or High performance Hot Rod.
Use Proflow Aluminium Rocker kit # PFERRK-6000
| SPECIFICATIONS | |
| Combustion Chamber | 64 cc |
| Intake Port Volume | 200 cc |
| Intake Port Dimensions | 2.170 (H) x 1.290 (W) |
| Exhaust Port Volume | 72 cc |
| Exhaust Port Dimensions | 1.440 (H) x 1.270 (W) |
| Spark Plug Location | OEM |
| Intake Valve Diameter | 2.020 |
| Valve Material | Stainless Steel 21-4N + 4Cr9Si2 |
| Exhaust Valve Diameter | 1.60 |
| Valve Stem Diameter | 5/16" |
| Valve Spring Pocket ID | 1.650 |
| Valve Guide OD | 0.530 (0.560" at base) |
| Maximum Valve Lift | 0.550 (0.050" margin) |
| Rocker Stud Thread Size | 7/16-14 |
| Valve Angle | 3 Degree |
| Deck Thickness | 0.790 |
| Coil Bind | 1.205" |
| Installed Height (int.) | 1.805" @ 118 lbs |
| Installed Height (exh.) | 1.788" @ 123 lbs |
| Spring Rate | 331 lbs/in. |