Proflow Cylinder Heads & Rocker Kit, SuperMax Aluminium, Holden Commodore VN, Complete, 590 HP Out of Box, 63cc Chamber, 200cc Intake Runner, Pair - PFEAHH20063-RRK6
Proflow Cylinder Heads & Rocker Kit, SuperMax Aluminium, Holden Commodore VN, Complete, 590 HP Out of Box, 63cc Chamber, 200cc Intake Runner, Pair - PFEAHH20063-RRK6 is not in stock at Fast Lane Spares and will ship direct from supplier
Description
Description
Part Number: PFEAHH20063-RRK6
Proflow Holden Commodore VN SuperMax Aluminium Heads & Rocker Kit 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 & BB Chevrolet, LS Chev Holden Ford SB 289-351W, 302,351 Cleveland 2V & 3V & BB FE, and Chrysler SB & 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 fullyĀ assembled heads have stainless steel valves and high performance valve springs.Ā Perfect for your Mild or High performance Hot Rod.
Note: Can use CC-4769-16Ā if your needing to run a smaller ID spring.
SPECIFICATIONS |
|
| Combustion ChamberĀ | Ā 64 cc |
| Intake Port VolumeĀ | Ā 200 cc |
| Intake Port DimensionsĀ | Ā 2.170ā (H) x 1.290ā (W) |
| Exhaust Port VolumeĀ | Ā 72 cc |
| Exhaust Port DimensionsĀ | Ā 1.440ā (H) x 1.270ā (W) |
| Spark Plug LocationĀ | Ā OEM |
| Intake Valve DiameterĀ | Ā 2.020ā |
| Valve Material | Stainless Steel 21-4N + 4Cr9Si2 |
| Exhaust Valve DiameterĀ | Ā 1.60ā |
| Valve Stem DiameterĀ | Ā 8 mm |
| Valve Spring Pocket IDĀ | Ā 1.650ā |
| Valve Guide ODĀ | Ā 0.530ā (0.560" at base) |
| Maximum Valve LiftĀ | Ā 0.550ā (0.050" margin) |
| Rocker Stud Thread SizeĀ | Ā 7/16ā-14 |
| Valve AngleĀ | Ā 3Ā° |
| Ā Deck ThicknessĀ | Ā 0.790ā |
| Coil Bind | 1.205" |
| Installed Height (int.) | 1.805" @ 118 lbs |
| Installed Height (exh.) | 1.788" @ 123 lbs |
| Spring Rate | 331 lbs/in. |
Ā
Proflow SuperMax Pro Roller Rockers Kit - Holden V8 VN 5.0L Carby or EFI , Proflow or Edelbrock Cylinder Heads
Proflow offers SuperMax Series shaft-mount rocker arm systems fulfill the needs of successful racers and performance engine builders at every level. The SuperMax rocker arms are made from quality 2024 aluminiumĀ extrusions built to withstand over 850lbs of max open spring pressures!Ā This kitĀ includes CNC-machined billet steel pedestals, and ground steel alloy rocker shafts, which come completeĀ with all theĀ components and hardware required for a professional installation, including shims. These 2024 custom aluminum formulas are designed for the Serious racer and have had extensive RND and testing conducted before release, meeting all nessasary performance requirements. SuperMax Series aluminum shaft rocker arms are available for a variety of engine applications.
Specifications:
- Suits 5.0L VN style heads
- Shaft mount full roller style
- 1.65 Ratio
- 7/16" Stud Size
- 850 lbs max open pressure
- FEA designed and tested
- Mirror polished roller tips for smooth operationĀ
- Socket head cap screw mounting studs
- Extruded from aircraft grade 2024-T6 aluminium
Application:
- Edelbrock Performer VN 5.0LĀ Heads
- Proflow SuperMax VN 5.0L Heads
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