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.

Note: We suggest using Proflow Head Bolt Stepped washers part number PFEAHF-HBW  Proflow head bolt insert washers are designed to be used on Ford Windsor cylinder heads in applications where you have 7/16" head bolts being used in 1/2" bolt hole Stops head bolt hole distorting on aluminium heads when using 7/16 bolts on 289 / 302 standard Windsor block 

SPECIFICATIONS

Combustion Chamber   60 cc
Intake Port Volume   170 cc
Intake Port Dimensions   2.00” (H) x 1.18” (W)
Exhaust Port Volume   66 cc
Exhaust Port Dimensions   1.32” (H) x 1.27” (W)
Spark Plug Location   Angled
Intake Valve Diameter   2.020”
Exhaust Valve Diameter   1.600”
Valve Stem Diameter   11/32”
Valve Spring Pocket ID   1.50”
Valve Guide OD   0.530” (0.560” at base)
Maximum Valve Lift   0.600”
Rocker Stud Thread Size   7/16”-14
Valve Angle   20°
 Deck Thickness   0.625”
Installed Spring Height   1.80” @ 125lbs

 

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.

Note: We suggest using Proflow Head Bolt Stepped washers part number PFEAHF-HBW  Proflow head bolt insert washers are designed to be used on Ford Windsor cylinder heads in applications where you have 7/16" head bolts being used in 1/2" bolt hole Stops head bolt hole distorting on aluminium heads when using 7/16 bolts on 289 / 302 standard Windsor block 

SPECIFICATIONS

Combustion Chamber   60 cc
Intake Port Volume   170 cc
Intake Port Dimensions   2.00” (H) x 1.18” (W)
Exhaust Port Volume   66 cc
Exhaust Port Dimensions   1.32” (H) x 1.27” (W)
Spark Plug Location   Angled
Intake Valve Diameter   2.020”
Exhaust Valve Diameter   1.600”
Valve Stem Diameter   11/32”
Valve Spring Pocket ID   1.50”
Valve Guide OD   0.530” (0.560” at base)
Maximum Valve Lift   0.600”
Rocker Stud Thread Size   7/16”-14
Valve Angle   20°
 Deck Thickness   0.625”
Installed Spring Height   1.80” @ 125lbs