So I have a 350 sitting waiting to go into my camaro... The problem is that when i had themachine work redone the machinist told me one cylinder was too rusted to just hone so he suggested boring the 1 cylinder over 10. I said no that rediculous do them all or do none but my father insisted on letting him do it.

What I am want to know is, is this engine a big paper weight now?
Can the engine be balanced with 1 cylinder 10 over?
And if its alright to drive like that would beating on it make a difference?

 

Noone? I thought this would be a simple "theres no problem with that" or "thats ****ed up" question.

 

It could be done, but it's not the right way to do it.

 

That is a common practice on 2-cycle outboard boat motors (that melt pistons every once in a while) but I've never heard of doing it on a car engine.

I would think that it will be fine, just kind of a strange approach. Are you re-using 7 of the old pistons? If so, then ok, you maybe saved a few bucks on parts. Still it sounds kind of back-woods to me.

 

Yeah I think its really stupid and just off... If one cylinder is .040 over I think I might just have him do the other 7.

 

it should be fine with one cylinder .010 over the rest. Are you planning on balancing the motor? Race type motor or street? how much you putting into the motor total? $? I think you'll be ok, unless you're doing a high buck race motor, then you want it all the same...

 

I've torn down high-mile engines that have had ONE +.010 piston, or less than a full complement. That's a cheap and dirty way to repair an engine, but it works. If balance is not much of a consideration, or even if it is, it can be done. For the cost of a full set of pistons, and the minimal cost savings of boring only one cylinder, it may not be worth it.

 

I totally agree with vader. I was always wondered if that could be done (never did it though), but I was afraid of balance issues. The way I looked at it, you have one cylinder that's SLIGHTLY more displacement than the rest, and I was always worried about putting more load on just one area of the crankshaft.