Proflow Cylinder Heads, Aluminium, Assembled 60cc Chamber, 170cc Intake Runner, SB For Ford 289, 302, 351W, 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.
- Material: A356 Aluminium
- Combustion Chamber: 60cc
- Intake Port Volume: 175cc
- Intake Port Dimension: 2.00" x 1.18"
- Exhaust Port Volume: 66cc
- Exhaust Port Dimension: 1.32" H x 1.27" W
- Spark Plug Location: Angled
- Intake Valve Diameter: 2.02"
- Exhaust Valve Diameter: 1.60"
- Valve Stem Diameter: 11/32"
- Valve Spring Pocket I.D.: 1.49"
- Valve Guide Material: Manganese Bronze
- Valve Guide O.D.: .530" (.570" at base)
- Rocker Stud Thread Size: 7/16" x 14
- Valve Angle: 20
- Deck Thickness: .625"