Thread: how will a sleeve effect my block

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the 400 block may not be the best pick to say that sleeves are good they may not be the best to sleeve the walls are close so a thick wall sleeve may get you a trouble with the wall moveing on the sleeved bore if a thin wall sleeve is used and hi HP as far as things not sealing like rings? well if the block is moveing or the sleeve is not honed right or ??? i have sleeved alot of big blocks and every one thinks they make make more power than the sleeve can take? topfuel runs what ??? sleeves but like said every one may not put them in right .i think i do i put some press on them and try to use a thick wall the sleeves i use are iron but is some times better make up of iron then the block is made out of so i would say it will move about the same as the block. i like putting sleeves in i could put them all day. i have had used blocks that made over 1200HP used in off shore boats that were sleeved and i have cut the old sleeves out for bigger bores and resleeved them .if you do not have a good strong block to start with then cutting more iron out of it will not help. but like said you will be ok for mild hp with the 400