3/8-16 x 1 Stainless Header Bolts for Chevy Small Block V8 – Fits 265/283/305/327/350/383/400 (Gen I/II), LT1/LT4 (92-97), TPI/TBI, Vortec 5.0L/5.7L (96-98).

Stainless Steel Header Bolt Dress-Up Kit for small block engines: Fits: Chevy Small Block V8 (1955–1998): 283, 305, 307, 327, 350, 383, 400, TBI, TPI, LT1, LT4, 5.0L, 5.7L Also compatible: Pontiac/Buick/Oldsmobile V8 (326, 350, 389, 400, 421, 455) Includes: 12x 3/8-16 x 1" socket cap bolts, 12x 3/8" stainless washers

• For 1955–1998/99 Chevy Small Block engines (265, 283, 305, 307, 327, 350, 383, 400): Compatible with exhaust headers with flanges up to ½" thick Not suitable for OEM exhaust manifolds
• For 1955–1998/99 Chevy Small Block Engines (265, 283, 305, 307, 327, 350, 383, 400): Compatible with exhaust manifolds with flange thickness up to ½ inch (Will not fit factory exhaust manifolds)
• These are high grade stainless steel 3/8-16x1 inch bolts and buffers that will not rust or corrode like the chrome or steel products below
• Use a 5/16" Allen key/socket
• If you have any questions, please contact customer service, we will be happy to answer them