Bowtie Oval Port Aluminum Cylinder Head Assembly

• Completely assembled with 2.250"/1.880" 11/32" stem valves
• 290cc oval intake ports
• 110cc exhaust ports
• 110cc combustion chambers

This head is assembled with the following components:

12366987 2.250" Intake Valves
12366990 Valve Spring Retainers
12366988 1.880" Exhaust Valves
12366992 Valve Locks
12462970 Valve Springs
12495690 Valve Seals
3875916 Valve Spring Shims
3921912 Rocker Arm Studs
3860038 Pushrod Guideplates

Big-Block Cylinder Heads
Part Number: 12363390
Description: Oval alum
Casting Number: 12363391
Material: Alum
Port Size (cc): 290
Port Type: Oval
Valve Angle: BBC
Chbr (cc): 110
Int Vlv: 2.250
Exh Vlv: 1.880
Exh Port: Square
Plug Type: Std
Heat Riser: no
Rocker Stud: Screw-in
Notes: Semi-open, oval port

note: Old part number was 12363390