I'm going through this now. The BHJ lifter tooling my machine shop used was cutting the bores to .992" so we had BHJ make bushings to fit that with the appropriate press. Typically the standard is 1.0000"
To be honest I'm sure cutting the bore to .937 would work but the oil intersection feed hole starts getting really big at that point and may just bleed to much oil.
AG.

Last edited by turbobitt; 10/21/22 05:45 AM.
1970 Challenger w/572 Hemi street car and my pride and joy. 1986 T-Type with 272 Stage 2 Buick V6 engine - True 8 second street car. Just updated the engine and put down 928 HP @ 35# boost to the ground on chasis dyno. 1976 Cee Bee Avenger Jet Boat - 460 Ford powered.