Holden Commodore SuperMax-EFI Aluminium Heads

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. 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.

Specifications:

  • Material: A356 Aluminium
  • Combustion Chamber: 63cc
  • Intake Port Volume: 200cc
  • Intake Port Dimension: Height -2.170 – Width – 1.285
  • Exhaust Port Volume: 72cc
  • Exhaust Port Dimension: Height – 1.450” – Width – 1.283”
  • Exhaust Port Location: OEM
  • Spark Plug Location: OEM
  • Intake Valve Dimensions: 2.020
  • Exhaust Valve Diameter: 1.60"
  • Valve Stem Diameter: 8mm
  • Valve Spring Diameter:
  • Maximum Valve Lift:
  • Spring Installed Height:
  • Valve Spring Pocket O.D.:1.650 - ID .560
  • Valve Guide Material: Manganese Bronze
  • Valve Guide Seal.: ID .530"
  • Rocker Stud Thread Size: 7/16" x 16
  • Valve Angle: 5
  • Deck Thickness: .750"

Holden Commodore SuperMax-EFI Aluminium Heads

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. 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.

Specifications:

  • Material: A356 Aluminium
  • Combustion Chamber: 63cc
  • Intake Port Volume: 200cc
  • Intake Port Dimension: Height -2.170 – Width – 1.285
  • Exhaust Port Volume: 72cc
  • Exhaust Port Dimension: Height – 1.450” – Width – 1.283”
  • Exhaust Port Location: OEM
  • Spark Plug Location: OEM
  • Intake Valve Dimensions: 2.020
  • Exhaust Valve Diameter: 1.60"
  • Valve Stem Diameter: 8mm
  • Valve Spring Diameter:
  • Maximum Valve Lift:
  • Spring Installed Height:
  • Valve Spring Pocket O.D.:1.650 - ID .560
  • Valve Guide Material: Manganese Bronze
  • Valve Guide Seal.: ID .530"
  • Rocker Stud Thread Size: 7/16" x 16
  • Valve Angle: 5
  • Deck Thickness: .750"