LT1 LT4 Header Stud Kit Bolts Stainless Steel Kit 1992-1997 Camaro Corvette 350 SBC - Bolt Kit for Installing Headers to Cylinder Heads - Fitment: Fits '92 – 97 LT1, LT4 Small Block Chevy SBC Engines; Fits Camaro Z28, Corvette, Impala SS, Caprice, Firebird Formula / Trans Am; Fits Most OEM Exhaust Manifolds & Short / Long Tube Headers; Will Not Fit: GEN III, IV, V Engines (Vortec 4.8 5.3 5.7 6.0 6.2L, LSX, LT5 Engines). - Specifications: Hardened 304 Stainless Steel; (12) 3/8" x 1 1/2" Studs (polished); (12) 3/8" Hex Locking Flange Nuts (polished).