Speedmaster PCE151.1002: Nitrous Oxide 0.500 Red Billet Square Bore Preimeter Injection Spacer Plate

Pushrod Guide PlatesSmall Block Chevy 3502-Piece AdjustableFits 5/16 Pushrods7/16 Stud Hole You need guideplates to keep your pushrods from deflecting under high-rpm conditions. That's just what our Procomp Electronics guideplate sets do, they are made from 5140 Chromoly steel, nitrided and black oxide coated for corrosion and wear resistance. Small Block Chevy 350 2-Piece Adjustable Fits 5/16 Pushrods 7/16 Stud Hole You need guideplates to keep your pushrods from deflecting under high-rpm conditions.