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sleeves

I dont think so,I had a set of .125 Darton sleeves in a 88 at 4.375 bore,Stepped at the bottom to fit in the block.Never had any issues with pistons or sleeves with a 6.125 stroke...The crank turned out to be the weak link..OUCH!
 
thank you for your reply rich. i have the same plan, step at the bottom of block with interference fit.i think we might make up a girdle for block so she stays together.
 
They will work fine. I have a tryed and true red diamond engine thats 4.875 on the bore running .062 darton sleeves, and a 70 oliver with 560 diesel sleeves in it. both are dry blocks. put a flange on the top and go.
 
YES..Girdles are good.My engine was built for 20%over NATPA pulls....If a man had the funds and wanted a big Ollie a billet crank would be the ticket I think...and as long a rod as possible...Rod angles suck in those engines...Thats what kills them in my opinion.My little engine is still running with a 5.250 stroke,she's a tough one but far from 'big'
 
Hey Mike I am thinking of doing something like you have.Do you have water in the head and do you have trouble with heat on back to back hooks or driving in the pits?ep
 
Yes we run water in the head. I drilled a hole in the side of the stock water pump and ran a hose from there to the back of the head and it seems to work fine. I had a little trouble getting an air lock out early on but since then so far so good. I did drill a small hole in each of the conn. rods to squirt a little oil on the cyl. walls to try to cool them a little. seems like it runs a little cooler with royal purple oil.
 
If memory serves me right(it's been awhile)journals were 2.00 but I would have to measure the crank..well whats left of it..lol...no billet cam it was notched/ground to clear the rods....I still have the bucket of exploded parts in the garage..lol
 
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