MrCoffee

iTrader: (5)

Here is what I have:

2005 383 Forged 5.3 10.5:1 CR short block with 5 cc valve reliefs
3.905 bore
4.0 stroke
LS6 heads, milled to 58 cc, sodium filled valves, stock sizes.

I would use a .053 head gasket?

I am looking at around 11.5:1 CR? Is this too high on 93 octane?

I would like to throw two stages of dry nitrous 75 shots at 3500 and 4800?

Injectors are LS2, LS6 intake and ported TB.

I have a cam reccomendation from an experienced person of 244-248 114 LSA

(Currently have a comp cam 232-236 115+3)

Should I take the combustion chambers to 62 cc?

Go larger stainless valves?

Or just do a little home porting and leave the chambers alone?

Also, with the 2005 5.3 block and the LS6 heads, what specs do I use for getting gaskets, ARP head bolts etc, LS1 or the 5.3?

Experienced thoughts and opinions are welcomed.

On a side note, economics is a consideration. But I believe things can be accomplished.

Thanks in advance.

bryan04h

iTrader: (2)

this is going to get the best responses in the internal section man

MrCoffee

iTrader: (5)

big duh on my part, thought i was posting in the internal forum.

mods please move.