LLY piston lip cut/valve relief advice needed

[whitey]

Does anyone know of a company that can do delipping and cut some reliefs in my lly pistons?

 

[whitey]

Bump

 

[messejme]

Social diesel should. Call guy

 

[c20elephant]

Couple memebrs on here in Phoenix here use a company called Larrys Marine in Tuscon.

 

[whitey]

Social diesel should. Call guy

Guy doesn't do them anymore..

 

[whitey]

.Thanks c20!

 

[Chevy1925]

Larrys will do it but you need to specify how much you want taken out and if you want the tops machined down. if you have the tops machined down, gently remind them that stock pistons have off set wrist pins and to re-mark the pistons after. they are pretty good about it now though.

really, any good machine shop should be able to do it if you give them the specs and make sure they re-mark them

 

[whitey]

Can u please explain the remarking?

 

[Chevy1925]

each piston you have is marked with an arrow pointing one direction (perpendicular to the wrist pin bore), then a 4 digit number at the bottom. 4 will be matching and the other 4 will be matching. they determine which side of the block they go in as the wrist pins are off set .030 to help quite down piston slap. cant remember off the top of my head which numbers mean what side of the block.

 

[whitey]

Thanks! What radius should they be delipped at. And can I go. 075 on the reliefs?

 

[PureHybrid]

Open bowl up to 2.5" , 1/8 radius IIRC

 

[whitey]

How about the reliefs, I'm not sure on the cam I will be running yet. Either a wagler or socal.

 

[skintback]

Danville Performance 317-745-8586 give them a call and see if they still do them.

But if you're going to be putting a cam in it why waste your time with stock pistons?

 

[ty_LBZ]

Highly recommend Larry's engine and marine in Tucson! They did the machining and short block assembly on my motor. Some top notch guys!

 

[whitey]

Danville Performance 317-745-8586 give them a call and see if they still do them.

But if you're going to be putting a cam in it why waste your time with stock pistons?

Dd and the pistons are in good shape.

 

[whitey]

Highly recommend Larry's engine and marine in Tucson! They did the machining and short block assembly on my motor. Some top notch guys!

Do you have their # I Googled it but it doesn't work.

 

[hondarider552]

520 623 5373 ask for Larry or Lewis. They have built 3 engines for me in the past.

 

[whitey]

How deep can one go on reliefs?

 

[Ne-max]

How deep can one go on reliefs?

If you need reliefs you should not be doing stock delipped pistons in my opinion.

 

[whitey]

Truck is a DD and the pistons are in good shape, see no reason why not to use them. Wanting to run a 6480 AF or similar, what problems will I have running them? Has it been done before with any success?