The fittings attach to the corners of GM cylinder heads and feature -4 AN male threads. They're manufactured from black anodized billet aluminum and include O-rings and stainless steel bolts. The plumbing kits contain the fittings and all of the necessary hose to plumb just the front of the heads or all four corners.

Steam Line Fitting and Plumbing Kit for GM LS

The fittings attach to the corners of GM cylinder heads and feature -4 AN male threads. They're manufactured from black anodized billet aluminum and include O-rings and stainless steel bolts. The plumbing kits contain the fittings and all of the necessary hose to plumb just the front of the heads or all four corners.
Company Info:
Trick Flow Specialties
285 West Ave.
Tallmadge OH 44278
Part #:
17948
Booth:
COMPATIBLE VEHICLES: