1996 Pacific Green BBF Project

[CobraRGuy]

After further inspection of the engine block, I realized it's too dirty for just brake clean. Took it to work and it had a nice bath. Crankshaft got mag checked and no cracks so it got a nice little polish. Cylinders have .002 taper. Pistons look kinda scuffed. Wanting to do flat top pistons and machine the block to .040 (block is currently at .030). Just waiting for the pocket book to catch up.

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What's the max overbore on that block? Is there a good way to determine what a safe maximum would be, like how thick the cylinder walls really are?
I recall hearing In my high school auto shop that 0.030" is typical max for iron blocks.
I've never dealt with boring an iron block before, so my questions are just to satisfy my curiosity.
Thanks, CobraRGuy

I like the logo. Maybe I'll try that for my 429 R.

 

[PWNY]

Max overbore is .060. The engine as I bought is was .030. The machine shop was able to clean up the bore going .040. Figured only take what we need to get a good finish. That way if we need to rebuild it in the future we can still go to .060.
Flat top pistons just showed up and will get the connecting rods swapped at the end of the week.
Things are starting to move.

 

[PWNY]

Engine is back from the machine shop. I knocked in the camshaft bearings. Cylinders are bored to .040 to get rid of the taper and the crankshaft is polished. Time to slowly but surely put this thing together. I do believe I have all the pieces to put this thing back together. I guess we'll find out shortly if I missed anything.

 

[wmfateam]

Purdy goodness!!