GSC Power-Division Exhaust Valve Guide Set of 10-Standard (gsc3085-10) 18090 1 1972 Pontiac Ventura Engine:

1 1972 Pontiac Ventura Engine: 4

T6-6061 aluminum tube that provides a smooth

This system incorporates factory style exhaust valves which use the factory exhaust valve motors (not included)

These 90MM tips fully conceal the remaining OEM piping and are adjustable to ensure ideal fitment

SP9003WB (Wrinkle Black)

GSC Power-Division Exhaust Valve Guide Set of 10-Standard (gsc3085-10) 18090 1 1972 Pontiac Ventura Engine:GSC has quite simply made a series of valve guides that fit properly, are easier to install, and shaped to help air flow instead of just copying the OEM design. The GSC Power Division valve guides are made from true C67410 Manganese Bronze and turned on a dedicated precision CNC turning center. What this means for you and your installer is less time fitting guides to the head due to holding the tightest tolerances in the industry with the best quality