70oldscutlass

HEADS: 1970 #6 Castings Large Valve

Machining: Rocket Racing Inc.
B & T Heads
Competition 3-Angle Valve Job
Street-Strip Porting (Gasket Matched)
Installed New Valve Guides (16)
Machine and Install Larger Valves (sizes noted below)
R/T Valve Seal, 11/32
Mill Heads to 54cc Chamber
Plug Exhaust Crossovers


Valves: RPM - RON'S PRECISION MACHINE, INC.
Oldsmobile Portflow Series Stainless Steel Valves

Exhaust, “PortFlow” 1.625 B.B. 400/403/455 Olds Length=4.695 Part# SEV-2498S
Intake, “PortFlow” 2.000 B.B. 400/403/455 Olds Length=4.667 Part#SEV-2499 45°

Valve Locks: Comp Cams, 611-16 Super Locks – w/ lash cap recess, 10°, 1 groove, 11/32" valve stem

Roller Tip Rockers: Comp Cam #4140 (Kit)Oldsmobile 350 V8 1.6 Magnum rockers,
guide plates, studs & High Energy pushrods

Custom Head Gasket: Machined, reuseable .070 thick


These heads have less than 1000 miles on them, they are original heads out of my 1970 Cutlass "S" the #6 castings are very hard to find.


Asking $1500.00 FIRM


contact Charlie 763-493-3238