Originally Posted by conan

My machine shop gapped my total seal rings at .021 on the top and .023 for the 2nd ring. This is for a blower application but the NO2 guys aren't much differant.

Also, what are you doing for head gaskets, head studs ? Are you going to line hone the main caps and stud them or go bolts ?



You don't have to clearance the bottom of the cylinders on a LS engine with a 4" stroke.



Can you elaborate on this please.

Originally Posted by bozzhawg

To add:

Make sure the bolts are long enough to hold the damper but short enough to clear the crank as well. Once you put the damper on, turn the shortblock upside down look inside and check.

Originally Posted by conan

My machine shop gapped my total seal rings at .021 on the top and .023 for the 2nd ring. This is for a blower application but the NO2 guys aren't much differant.

Also, what are you doing for head gaskets, head studs ? Are you going to line hone the main caps and stud them or go bolts ?



You don't have to clearance the bottom of the cylinders on a LS engine with a 4" stroke.



Can you elaborate on this please.

Originally Posted by chevybayboy

I already have head studs what you think I should do with the mains?

Originally Posted by td1168

That's funny, I assembled a 383 ls1 with an eagle rotating assembly. Eagle told me the same thing you are saying. After I got the first piston in and went to turn the engine over I found out otherwise. You're putting out bad info. The bottom of the cylinders had to be notched to clear the rod beams.

Originally Posted by conan

My machine shop gapped my total seal rings at .021 on the top and .023 for the 2nd ring. This is for a blower application but the NO2 guys aren't much differant.
You don't have to clearance the bottom of the cylinders on a LS engine with a 4" stroke.
Can you elaborate on this please.

Originally Posted by A.R. Shale Targa

Blowers and NOS are a bit different in that blowers make peak power ATDC
and spray is just BTDC which is brutal on hard parts.
Gen I small journal(2.00") or Honda(1.88")=no clearancing
Anti seize + NOS =detonation

Originally Posted by dr_whigham

I'd bet the house you're gonna max your injectors. Maybe try to sell them now, and grab some 42's and be done with it.

As far as AS on spark plugs, NGK actually came out with a bulletin saying not to run it bc it will weaken the threads.

I still do, but very light, and only the upper half (towards ceramic) of the threads.

Originally Posted by cookba

thats a good sized cam. any idea what it might put down? i have been looking at one in that size and one slightly smaller.

Originally Posted by cookba

thats great! i also plan to spray 150-200 later down the road. are you running a stock LS1/LS6 intake?