Originally Posted by hink
We machine alot of the .904 lifter bores in both SBC and BBC and rarely do we install bushings when going to the larger lifter bores.
Hey Carl,
I'm thinking about trading some sm/blk stuff for a 4.625 bore Donovan T'deck Chevy Alum blk. there are some issues with the lifter bores, having never been bushed. I can do this procedure, the question is would you go to bronze or cast iron on this Alum blk? and can i go to the .904's or just bush them back to .842's.
It would be an alcohol injected motor.
Zip.