speedtigger

iTrader: (16)

I decided to put some CNC ported LS6 heads on my LQ9. So, what does the motor become? Most 6 liters with 243 heads are LS2. But, mine has an iron block. So it is an LQ-2? or how about an LS-9? Or, is it a LQS-69? Since the heads are ported, they flow like LS3 heads. The only logical thing to do is to pay homage to all of them. How about LQS-9623?

On a serious note, the cam is 222/224 .566/.568 on 112. The compression is 10.88:1. The car is carbureted with a 750 Pro Systems carb. I am thinking it will make 500Hp at the crank. The car is 3370 and 3550 with me in it. 3.90 gears and a 3000 Circle D. Anyone have any timeslip predictions?

-Q-

iTrader: (10)

I vote for LQ6. And I think I may steal that for my build as well...

Good luck with the build.

530Racer

12.30 if you can hook it up

speedtigger

iTrader: (16)

That is some serious camshaft you have in that new build. Looks like you could be headed for the 10 second club.

-Q-

iTrader: (10)

I'll have to sink some serious funds into a rear end and suspension mods to get there...but that's the goal. Cam is about the size of an MS3, but the extra cubes of the LQ4 help eat it up a little. I'm optimistic about the combo...should be fun.

A.R. Shale Targa

iTrader: (2)

Finally got that oil-pan you were waiting for huh speed ?????????
Recently seen an LS3(376cid) crate dyno @ 483 stock w/ dyno exhaust
carb and no acessories. Then G.M. cnc heads went 492 hp and lastly
a comp 224/230 stick @ 560 ponies. Even uncorrected w/belt driven crap
thats still 520ish. So w/ 12 less cubes your expectations are realistic
and I'm sayin with good drag radials or slicks you should expect at least
11.70-11.85 @ 115mph

speedtigger

iTrader: (16)

That would be a strong number. Might have a fun little street thumper.

1lejohn

iTrader: (9)

Our old 383 with ported 243's,MS3 ,4.11's and a LS6 intake made 440-450RWHP. You should be close to it. What intake?

speedtigger

iTrader: (16)

I really don't have much experience with RWHP. The only car that I ever chassis dyno'd was my 2004 Cobra. It was pulley'd, tuned with a magnaflow cat back. It had 430 RWHP. That car was an animal.

I don't see this car being nearly as strong as your 383. You had more cubes and more cam. Whatever it ends up producing will be measured at the track. I don't plan on going to the chassis dyno.

The engine has an Edelbrock Performer RPM and a Pro Systems Holley DP. I think they said it flows a little over 780cfm.

01ssreda4

iTrader: (96)

You need more cam and converter to go with the heads

Seriously, it sounds like a great street combo. Should run good.