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Hey guys, going stir crazy thinking about this build while parts are being finished up at the machine shop. Doing a hot little n/a ls1 in my 2700# nova
ls1 with stock crank, new gen4 rods stdx bearings throughout.
dss 6cc dome pistons 3.898 bore
.040 cometic head gaskets with the extra cooling holes to help cool the chambers
862 heads milled .060, ls1 diameter I take valves with new ferrea valves, 5 angle valve job back cut etc,
14.2:1 compression,10.94 dynamic
heads are ported by me with the guidance of months of reading and helpful tips from Ed Curtis. Bowls blended, etc
Ed curtis Cam, 255/261 .650/.650 on a 111
btr .685 lift platinum springs titanium retainers
Holley split race single plane with 4 barrel throttle body, port matched to the heads.
Billet double roller timing chain
ported dod oil pump, with bypass blocked and an external bypass controller. 20/50 schaeffers
That's an amazing build. Beyond my experience but I will play the guessing game. Sounds like lots of rpm with that intake and cam.
Does the engine have a crank scraper?
565 whp to 585whp
Thanks man! She should be pretty nasty I would think, expecting around 7500 rpm shift points. I’ll shift wherever it wants me too! I’ve been considering getting a crank scraper actually, been reading about them
550+ but be more interested in track times myself. Cool build man.
I’m sure track times will give us a better idea than dyno numbers, I’m sure the stall will eat up some power on the dyno.
Originally Posted by DavidBoren
A crank scraper and a vacuum pump would both probably be good on here.
Should be sweet no matter what.
Definitely interested in the track results.
Im for sure getting a crank spacer, I decided on buying the whole kit or just the scraper.
Originally Posted by spanks13
I think it will make right around 600 crank hp. The heads are a little bit of a wild card.
RWHP I wouldn't sweat too much given the 9" and the high stall converter. You'll be in the 10's for sure with this combo though.
E85 or race gas?
Im sure rwhp will be lowish with the big stall and 9”, but I bet it performs better than the numbers say it should lol. E85 is the plan, if I have to e98.
I also have a question. I have a m4 2004 GTO I am getting ready to build. I currently have:
BTR stage 3 cam
799 heads
Stock ls6 intake
Pacesetter armor coated long tube headers
Catless mids
SLP exhaust
(All supporting mods)
so I ran into someone selling stage 2.5 ls6 ported heads, fast 102mm intake manifold, and fuel rails for $2000 and all parts were only bolted on for a few pulls on a dyno. Is it worth me selling my ls6 intake and 799 heads and going for those parts?
Hey guys, going stir crazy thinking about this build while parts are being finished up at the machine shop. Doing a hot little n/a ls1 in my 2700# nova
ls1 with stock crank, new gen4 rods stdx bearings throughout.
dss 6cc dome pistons 3.898 bore
.040 cometic head gaskets with the extra cooling holes to help cool the chambers
862 heads milled .060, ls1 diameter I take valves with new ferrea valves, 5 angle valve job back cut etc,
14.2:1 compression,10.94 dynamic
heads are ported by me with the guidance of months of reading and helpful tips from Ed Curtis. Bowls blended, etc
Ed curtis Cam, 255/261 .650/.650 on a 111
btr .685 lift platinum springs titanium retainers
Holley split race single plane with 4 barrel throttle body, port matched to the heads.
Billet double roller timing chain
ported dod oil pump, with bypass blocked and an external bypass controller. 20/50 schaeffers
tci 5500 stall / th350 with a brake
9” rear 28x10.50
Just for comparison for you to play with. I am 408 14:1 after market head (I think they flow 340 CFM) On E and a little more duration 260/270. It put down a little over 550 to the wheels and runs 10.20 132 at 3300 lbs.
Just for comparison for you to play with. I am 408 14:1 after market head (I think they flow 340 CFM) On E and a little more duration 260/270. It put down a little over 550 to the wheels and runs 10.20 132 at 3300 lbs.
Yea I don’t expect to break 500whp on the dyno. My old stock ls6 headed 416 made over 500whp
Originally Posted by Mavn
Gonna dyno under 500 but trap 132-135.
Yea I highly doubt it breaks 500whp, but she oughta be s runner. Our D/A up here is around 5500 most of the year though so that hurts.
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14:1 ls1 dyno estimates 
