Raise the limit of your SR20's bottom end reliability with a Plazmaman billet High tensile Steel main caps.
These Billet Steel items are Essential reliability for applications over 550+ rwkws.
These are designed to be used in conjunction with the Plazmaman Billet alloy Girdle we also have available.
Comes pre-drilled to suit OEM specification thread ARP Stud kit - 1/2" studs in our experience are not required
*** Please note - Line bore of Block crankshaft journals is required ***
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
