I Need Help Now!

im buildin a 383 and tha machine shop needs a piston to bore out the block(i guess to make sure they fit perfict) now im not buyin a whole rotating assm.(trin to save a few bucks) anyways, i found these at summit racing . will they work wit a 3.750 stroke and 5.7 in. rod? im just trin to aviod a costly mistake.



http://store.summitracing.com/partdetail.asp?part=TRW%2DL2491F60&view=1&N=700+150+

Those are a .060 over piston for a 383 you need a .030. Why reuse the stock rods, you can p/u eagle or scat stuff for less then $200. Plus now you have to pay to get everything balanced vs buying a balanced kit.

no the block was bored over .40 already tha machice shop says it has to be bored .60 over. im not reusein stock anything. will they work?

Those are a .060 over piston for a 383 you need a .030. Why reuse the stock rods, you can p/u eagle or scat stuff for less then $200. Plus now you have to pay to get everything balanced vs buying a balanced kit.

What makes you think the $200 rods are better than the stockers? They aren't.

Rich

But the do come in a balanced kit vs balancing the stock ones.

so the stock rods will handle what im bout to throw at them?(500hp, 7000rpm, 300 shot n2o) other then that will those pistons work?

so the stock rods will handle what im bout to throw at them?(500hp, 7000rpm, 300 shot n2o) other then that will those pistons work?

500hp motor + a 300hp nitrous shot? Everything better be of top quality. Forget stock rods or $200 imports.

Rich

No, the stock rods will not handle 800 HP. With that large a shot (basically what I am running) you need a piston specifically made for nitrous, and rods a lot beefier that what you get for $200. And don't forget a high quality crank for your 388.

Might have been a good idea to mention the 300-shot in the original post.

now im not buyin a whole rotating assm.(trin to save a few bucks)

im just trin to aviod a costly mistake.

Sort of a contradiction, on an engine that's supposed to support 800HP.

I think you need to step back, hold off on the build, and do a little research. It could save you thousands in the future. Ask a few questions around here, learn who to listen to, read a few books, and go from there.

Buy a Kit!!

Forged Pistons, H-Beam Rods and a quality crank will hande 800 HP easy.