I'm in the process of disassembling 235 ci, S/N 05-I6429F255XA, block casting #3836233, mfg date D225, with cylinder casting # 3835913 (mfg date D285). I've found that this engine has solid lifters and that the rocker Arm Shaft lubrication has the lub line going from the rear of engine block to the lubrication port that supplies oil to the Rocker Arm lub tube assembly. That said: should this engine have had hydraulic lifters (it has solid lifter); and two should the bolt that goes into the Rocker Arm oil gallery be drilled to allow oil flow into the Rocker Arm lubrication tube assembly (this engine's bolt does not have oil passage.)?
Last edited by Phak1; 06/02/2026 11:56 AM. Reason: Spelling