im throwing in forged rods and pistons didnt know if i should just use a stock bore 4.00 bore piston or use a 4.005 piston and hone the rest any suggestions

 

If the crosshatch is good, and the cylinders measure good, there would be no reason to hone it. I would stay stock unless there is a problem.

 

You would have to have a machine shop hone it to 4.005. They should use a torque plate and ridgid hone for it. If your cylinders are in good shape, dingleberry hone it and fit your own rings and stock size pistons and you will be good.

 

The motor is mint shape it only has like 20,000 miles on the motor only thing that happened is number 7 cracked the pIston that's why I was thinking the 4.0 bore will be good

 

Use stock size forged pistons IMO. Measure your piston-wall clearance meticulously and adjust it based on what the engine is being built to do.

 

What year is your LQ4? I might be interested in the rods if they're the newer style.

 

There the older style I believe it's a 02 or 03

 

No problem running the std factory bore and dingle ball hone it, only problem you will run into is the factory bore is 4.0015-4.002" and factory pistons are 4.000". Most aftermarket pistons assume the bore is 4.000" and will be loose. Im working with Autotec to build me pistons in the 3.9985" for the 4.002" factory bore as we speak. Most 4" forged pistons will measure 3.995-3.997" depending on alloy.

 

So the Std bore piston will be fine tho just throw a quick hone on it and throw it back together I should get the whole thing balanced right