theres a guys thats sellin an ls1 block and the block has a 4" bore and its been resleeved, im wondering if the sleeves can be bored to 4.125, i asked him and he said he dosnt realy know, im thinkin that it can be resleeved cause i think the darton sleeves come in 4'' and they get bored .125 more to achieve 4.125, im not sure what kind of sleeves this has, but im sure some you smart ls1techers can help me out thnx again

 

thought someone would know oh well

 

Doubtful. They have different sleeves for different bores. an extra eighth of an inch is a HUGE ammount to bore. Its probably more than half the thickness of the sleeves.

 

can a 4.125 stroke fit in a ls1 block