roflow 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.

Specifications for BareCylinder Heads

Material:  A356.2 Aluminium
Combustion Chamber:  122cc
Intake Port Volume:  360cc  
Exhaust Port Volume:  135cc , Exhaust port lication 0.375'' raised
Spark Plug Location:  Angled
Intake Valve Diameter:  2.300"
Exhaust Valve Diameter:  1.88"
Valve Stem Diameter:  11/32"
Valve Spring Pocket O.D.:  1.735"
Valve Guide Material:  Manganese Bronze
Valve Guide O.D.:  .530" (.570" at base)
Valve Angle:  24° Intake / 15° Exhaust
Deck Thickness:  .750"

IMPORTANT iNFORMATION