Originally Posted by sport65
Dying to put a .030" over 389 in my Lemans with 400 pistons/heads. Prices for A body 64 389 or 65-66 389 block seem rather much to me and most of them have been left outside.
I've got 2 known good 326 blocks. For the prices I've seen for a 389 that I don't know if good plus the costs to machine said block, I'm thinking might be better price-wise to sleeve a 326 that I have.
Don't know that much about sleeving just what I read so I don't know if I'd need dry sleeves o wet sleeves. Don't know if it's possible to do sleeves that big on a 326 or if anyone has even attempted it.
Can anyone "ball park" approximately what 8 sleeves would cost? (If plausible)
Please don't ask why LOL. Yes, I'm crazy.
don't do it, it will ruin the block.
on a stock Pontiac, the original cylinders are what holds the deck down. if you press 8 sleeves into it, all the original liners will crack. then when you bolt the heads down, the head gasket will not seal- cuz the head bolts pull the deck up, rather than pulling the head down. my friend has a boat anchor 455 4 bolt main block with 8 sleeves in it, that we ran at the track. it leaked water past the head gaskets after one day at the track.
you can only sleeve every OTHER bore, cuz you need at least 2 unsleeved bores to hold the deck down, on each bank. you can't sleeve 2 bores next to each other, cuz the head gasket will blow there.
even putting ONE sleeve in a Pontiac block, severely distorts the cam registers, then the cam won't go in, and you have to hand hone the cam holes, one at a time, front to back, and install each bearing, until the cam eventually goes all the way in. I had to do it to 2 blocks.
so it's reserved for saving special 4 bolt main blocks, rare castings, etc.
and it costs WAY MORE than just buying a 389
you can take a totally rusted seized Pontiac 389 that has been sitting outside uncovered, and if it's not cracked, have it shot peened, magged, cleaned, and have it rebuilt for less than sleeving a 326.