Chevy GM GEN III LS1 LS2 LS6 5/16" Guide Plates Comes with header mounts and

Comes with header mounts and adjustable straps to fit most applications

If your standard Bowtie block could handle 1500+ HP it would be Speedmaster's H1 engine block

to handle higher rpm

They are machined from chromoly steel

The Speedmaster steering box for 1958-1964 Chevy vehicles are just the ticket to update your ride

Chevy GM GEN III LS1 LS2 LS6 5/16" Guide Plates Comes with header mounts andYou 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.