SBC BBC Timing Cover Stud Kit Bolts Stainless Small Big Block Chevy 350 427 454 - Bolt Kit for Installing Timing Cover to Block - Fitment: Fits 265, 283, 302, 305, 327, 350, 396, 400, 402, 427, 454, 502 SB BB Chevrolet Engines; Fits Most OEM & Aftermarket Stamped Steel Timing Covers; Will Not Fit: Aluminum Timing Covers; Will Not Fit: GEN II, III, IV, V Small Block Engines (LT1, Vortec 4.8 5.3 5.7 6.0 6.2L, LSX, LT5 Engines). - Specifications: Hardened 304 Stainless Steel; (10) 1/4" x 1 1/4" Studs (polished); (10) 1/4" Hex Locking Flange Nuts (polished).