Rebuilding engine. How much of a bore can be expected?

[IHeartTurbo]

I need to figure out what i need to buy for pistons, rings, etc. So what is the usual bore on a rebuild? .020" over?

 

[sonicnofadz]

If this is the first rebuild on the block, most people would say .020 over.

 

[Suparata]

Have your block bored or at least checked by the right guy before you buy the pistons.
If it's the first rebuild and nothing is out of ordinary it will probably clean at.020" but don't ASSUME.

 

[nukefission]

How many miles are on the block? If the cylinders are in good condition and there is not too much taper, you can get away with a light hone and sticking some clean pistons in there with new rings. This is assuming you're doing a stock rebuild. I've done this for countless rebuilds and they have all run great.

It's a different story if you upgrading to forged internals.

 

[loreak]

im about to get an engine rebuild as well

i was just planning on using the stock pistons and rods just getting new bearings and rings and the normal wear and tear, and having cylinders honed

how much does a basic rebuild like this usually run at a machine shop

 

[nukefission]

Anywhere from $400-600 depending on if you have head work done also.

 

[SpoOLxExO]

And that is, when you have the block honed, you MUST...MUST MUST MUST use a torque plate.

For those who don't know a torque plate is, its a simulated cylinder head with the piston holes bored through.

When the block is honed w/o a torque plate, there is a distortion is the shape of the hone. This causes extreme stress on the pistons and the engine will blow up on you.

A torque plate ensures a perfectly straight hone all the way around, due to the fact that when the cylinder head ( or Torque plate) is bolted down, the block actually shifts, and moves a great deal when put into machinist terms. (.001's of an inch, but makes all the difference)

Don't spend money on a rebuild w/o making absolutely sure your engine has been honed correctly.