hello i am having the engine block and heads taken to a machine shop to be bored, polished, and painted. my question is how much more should i have it bored with maintaining the strength of the block itself.
The standard overbore is .030". You'll have a tough time finding .010"- or .020"-over pistons. And they're usually more expensive than .030"-over pistons. Don't bore more than .030" over without having the block sonic-checked.
But if the engine's cylinders don't need to be bored, they shouldn't be. Short of needing to "clean-up" the cylinders or unshrouding valves, overboring a block will reap no measurable advantage.
im not sure that the block "needs" to be bored, i plan on boreing, polishing and repainting, wouldnt boring it over increase power or torque, or is there no real benefit of this. i plan on replacing everything pistons, valves, roller rockers, pushrods, springs the whole 9 yards. should i justr have it cleaned and painted with out boreing and just replace all the internals
so should i just have it polished and total rebuild or is there a safe overbore more than .03 that would be significant. what would make it nessesary to overbore. i also intend on going with nos wet nitrous system how would overbore come into play there
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