Help with 5.3 Engine build in rock crawler

[kerrige]

Will the stock rods handle 11:1?

Should do just fine, however, LS2 style rods would be better and are cheap. Arp rod bolts are a good idea.

[Bodie]

I tore the engine down today, looks like I am going to need to have it bored. I couldn't run a 6.0 piston could I?

[jansen]

No, but it can be bored to ls1 specs which would make your 400hp goal more attainable. A high compression ls1 would make 400 pretty easy with the right cam and a little port work.

[Bodie]

Is that .030 over? What are yall porting on a mild job? Port matched, or bowl work?

[Bodie]

I dropped the block and heads off today at Longs Machine. Can I do a .040 over without any kind of problems?

[George C]

can go .120 but gotta becareful

heres a little 53 I put together for my lifted jee

http://www.youtube.com/watch?v=eXpA5...eNbygkIVUo4iFw


GMT900 intake with 90mm tb, thumper 1 cam, ls3 manifolds with dual 2.5 exhaust, CAI this combo should make some decent rwhp for what I have into it

specs are 219/233 553/537 109 lsa...using 08 injectors

[Bodie]

Where can I get a .120 over piston?

[Bodie]

What is the danger of going to a LS1 piston? Would I have rod concerns with that size piston on a stock 5.3 rod at 11:1 CR?