12562926
Bare Cast-iron Gen V and Gen VI Cylinder Head

• Bare cast-iron head
• Machined for 2.180"/1.880" 3/8" stem valves
• 118cc combustion chambers
• 3/8" accessory bolt holes (otherwise identical to P/N 12562920)

Big-Block Cylinder Heads
Part Number: 12562926
Description: Gen V, VI BBC
Casting Number: 12562934
Material: Iron
Port Size (cc): 325
Port Type: Rect
Valve Angle: BBC
Chbr (cc): 118
Int Vlv (in): 2.180
Exh Vlv (in): 1.880
Exh Port: Square
Plug Type: Std
Heat Riser: yes
Rocker Stud: Screw-in
Notes: 3/8 accy holes