Thanks NealActually a Stage I block does have production style main caps. If you are removing a girdle from a Stage I block and relacing the caps you can get billet steel caps from Program Engineering.
Neal
no you cant just pop em on and go , they will bolt up but anytime you go swapping caps especially on a block that was already line bored you will need a line bore , a hone usually wont do it
..and std caps on a stage block (2 bolt mains) is a waste of a good block
you can run the standard #1 and #4 caps but unless hp goals are low at minimum i would get a pair of center billet caps installed and then that block will be ready for future hp needs
Good to hear. I'm in the process of building a 273 cu. in. 291 and am leery about the thin deck. I'm only removing enough to clean the deck to a nice smooth surface. Did you remove any of the head bolt threads in the deck?I knocked .035" off my 4.1 deck and my cometics seal well enough to crack 2 pistons during a lean spell.
291? How much power?If you get the block decked, have it square decked if at all possible. Mine have been off from .005-.007 end for end. Also, the 4.1 has a reputation for cracking between the head bolt holes and the water passages. I believe it has to do with the bolts or studs pulling on the deck surface. Like Earl said, take out a thread or two if you deck it. I had no problem with a factory deck for years, but when I had that block decked .010 on a rebuild, it was cracked the next time I pulled the heads.