Bore specs and piston weight

CAMAROCAM27

MEMBER
2002 CHEVROLET CAMARO
5.3L
V8
2WD
AUTOMATIC
140,000 MILES

Wondering what should I ask when I take the block to be bored and honed and what weight I'm looking for the pistons to be.

Monday, October 11th, 2021 AT 5:00 PM

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi,

I'm not sure I understand. Are you having the engine bored to a larger size? If that is the case, there are specific specifications they can bore to. As far as piston weight, I've never had that asked before. Can you explain?

Thanks,

Joe

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Monday, October 11th, 2021 AT 8:53 PM

CAMAROCAM27

MEMBER
3 POSTS

I'm going off the video series (Building 5.3 LS) by Ryan from 2CarPros. I'm going part by part with the series and I just need to know what I ask for as how much I need to bore the block to and what is the desire weight of the piston rod arms?

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Wednesday, October 13th, 2021 AT 10:04 AM

RYAN L

ADMIN
261 POSTS

Hey there!

Thanks so much for watching our LS series on YouTube. So, for bore size I would ask the machine shop what the block is going to clean up at, you are hoping for.030 over bore. Also have them check the block with a magnaflux process to ensure the block is usable. As for the connecting rods and piston weights go, you just want each piston and rod combo to be identical with weight to every other pair.

You will also have to get pistons and rings to match how ever much you need to bore your engine over to.

Thanks for using 2CarPros!

If you have any other questions, please let me know and I will help you.

Best regards,

Ryan

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Wednesday, October 13th, 2021 AT 5:03 PM