blackccoupe

hey guys doing new pistons in my ls motor can i use the stock bore81mm pistons and do just a light hone and be ok any help is appreciated trying to keep this a low budget build meaning not spending alot lol

rorik

you could, but you'd end up with slightly loose clearances. One of my friends did this and it resulted in an annoying diesel like sound at idle with whatever forged pistons he had. He hated it, and tore it all apart. 81.5mm is what I'd do.

Schister66

i second the 81.5mm because the block should be good w/ a .5mm overbore...who knows what the condition of the stock bore is...

adseguy

Here's how you are supposed to do it:

Measure the concavity created by the miles of wear and tear. If the specs in the Honda manual call for a bore....do a bore. If it doesn't , then you can do a hone. With that many miles you will most likely have to do a bore to 81.5mm

blackccoupe

also will acl bearings work the standard ones?

blackeg

save the trouble in the long run. go 81.5mm and use brand new oem bearings

blackccoupe

i may just use the motor the way it is for now then build what should i look for on the pistons and bearings to show bad wear i will have the oil pan and head off