M14 x 1.25 x 1/2" Recoil Insert (5 Pack) 5621330 Compatible with GM GMC Small

Compatible with GM GMC Small Block SBC Big Block BBC 262 265 267 283 302 305 307 327 350 383 400 396 427 454

1/8 CSK Square Surefix

We recommend properly designed compressed air facilities so that

Ultra-compact head

open plenum manifold designed primarily for high-performance street

M14 x 1.25 x 1/2" Recoil Insert (5 Pack) 5621330 Compatible with GM GMC SmallRecoil inserts are rolled from high quality stainless steel wire with a diamond shaped cross section, wound to the shape of a spring thread. Once the insert is installed into a tapped hole, it provides a permanent and wear resistant thread in the parent material designed to be stronger than the original thread. The inserts are greater in diameter than the corresponding tapped hole and compress as they are installed. This allows maximum surface contact