Factory I.D. 3863151 for: 327c.i., 1965-68, factory 350 HP, 327c.i., 1967-68, factory 325 HP.; Factory I.D. 3863151 for: 327c.i., 1965-68, factory 350 HP; 327c.i., 1967-68, factory 325 HP.
Factory ID #3863151 for:327 c.i., 1965-68, factory 350 HP327 c.i., 1967-68, factory 325 HPFor Carb or Tunable Fuel Injection3 1: Cams for '55-'57 engines can be custom ordered. 2: The '87+ Chevy Small Block received provisions for Roller lifters. Most '87 - '93 GM cars came with Roller lifters, but most '87 - '95 trucks came with flat tappet lifters in Roller lifter style blocks. If a Roller Cam is desired and your block has OEM-style Roller Cam provisions. COMP Hydraulic Roller Lifter Install Kit for '87-'90 Blocks or '91-'02 Blocks can be purchased, as well as a '87+ OE-Style Hydraulic Roller Cam.