Well...most blocks will go way more than .060 It's just not recommend to go over .060 Why would you? You just get another block, especially in the SB chevy world.

In my case I need to use a '59 389 block and I've got to get the bore to a STD 455 piston size which is 4.150 With the 389 bore of 4.0625 it actually works out to .090 over. I think (hope) there will be plenty of cylinder wall integrity. I don't know what the actually cylinder wall thickness is but I'll see if I can find out. It may be the weak link in this whole project but I think it will be fine.

If your OK with .060 over. Think of it this way, I'm only going to go another .015 cut to get .090 If you look at a .015 feeler gauge, it's not much.

Thanks for your comments - keep 'em comin'

Greg

1947 M15 Studebaker 454 4x4
1949 Chevy COE
In the Stovebolt Gallery
More pix of the COE
1950 Harley FL
1958 GMC LCF 455 3x2bbl
1961 Chevy C60 Tilt Cab 327
1966 Chevy C60 Tilt Cab 496
1961 Chevy K10 sb 292
1974 Harley FXE
1979 Chevy K10 sb
2007 Harley Streetglide


I'm not that good but I'm slow