Oldsmobile 350 400 403 425 455 Flat Guide Plates (3/8" Pushrod - 7/16" S/H 1Pc.) CNC-machined from high-tensile billet steel

CNC-machined from high-tensile billet steel for strength and precision

The oil pan helps to cool the oil thru its contact with the outside air

All rockers feature large needle bearings and roller tips

These camshafts are precision-ground from race-quality cores

acceleration is more responsive

Oldsmobile 350 400 403 425 455 Flat Guide Plates (3/8" Pushrod - 7/16" S/H 1Pc.) CNC-machined from high-tensile billet steelYou need guideplates to keep your pushrods from deflecting under high rpm conditions. That's just what our Speedmaster guideplate sets do, they are made from 5140 Chromoly steel, nitrided and black oxide coated for corrosion and wear resistance.