SLEEVES??

[RED_95_GSR]

does a 83mm bore on a b18c1 block require sleeving?

also, does a 3.205 bore reqire sleeving?

thanks

 

[nfn15037]

3.205" = 81.407 mm, should be OK on stock sleeves, as many go out to 81.50 with no issues. Many recommend against 83mm bore on stock slee,es, that doesn't leave much meat left on the sleeves, but I suppose it all depends on what you are doing with the block. Personally, I would not run 83mm on stock sleeves.