This is a LQ4 if that changes anything.

 

Your starting to split hairs here...

 

Yes it does change things, if you have a LQ4 go with the 243/799 heads then.

 

61.1cc would give me around what CR with the 799. My mind is trying to grasp what is what.

 

799 heads are 64.5 cc, not 61

 

Mine are the sdpc cnc 5.3 heads. Site says 61.1. I was going by that. Looks to be 862 casting.. my bad...

 

10.5:1 lq4 with 4.00 bore

 

Okay, sounds like it might work out unless I have to punch it out some. so here is what I'm looking at so far. anything I need to add. This is my first build and I'm clueless at what i need for this point.anyone want to take a guess at HP/TQ


Lq4 block
stock crank/ rods/ pistons (dish)
862 heads 61.1CC with 10.5.1CR
Comp 54-455-11 Camshaft
LS2 Chain
16 GM LS Rocker Arms
Comp Trunion Upgrade Kit
LS7 Lifters
LS2 Trays
APR head bolts
Manley 7.400" Pushrods (length can be changed)
PAC-1211X .625" Valve Springs - Beehive


I hope I can use alot of the sensors off the 5.3 I have now. I'm guessing it will all swap over.

 

any more thoughts?

 

K, look like a Lq4 block ls3 piston and rods with worked over 317's. Any thoughts on a cam?