Tar Heel

After our Yank SS4000 and 3.90 gear install (thanks True Street in McKinney, Texas for setting up the gear), as well as a dyno tune from East Texas Muscle Cars in Longview, Texas (thanks Stephen!) we drove 90-miles one-way to Dallas Raceway in Crandall, Texas today and went a best of 12.30 @ 107 with a 1.60 60'. DA was 1400' with a STRONG 30+mph head-wind coming straight down our face. Only other mods besides what is listed above are a Vararam CAI and Mickey Thompson drag radials. Car is full weight and still has stock exhaust manifolds.



This was our first time out this year and just for fun we won our class!



It was fun having people come up and ask what cam and heads we were running! "Oh, whatever the guys in Bowling Green put in almost 10 years ago!" Excited to add American Racing headers, Bogarts, some pulleys ... and see if we can't dip solidly into the 11s.

Rob Petyo

Congrats on the PB! The winds were bad all the way up here yesterday...

What Bogart s do you have in mind?

pit-man

Cam\headers will make a new Vette out of it

Tar Heel

D10s. IMHO the best race wheel for a C5!

Tar Heel

Yes, we're legal for IHRA Stock Eliminator now (Pure Stock) but would like to put a set of NHRA approved OEM heads on it with a Stocker cam (stock lift, unlimited duration) which would give it a whole new sound and put it in the 10.80 range. To me that's pretty impressive for a "stock" head casting, stock lift cam, bolt-ons, and still street legal.

If anyone has a set of OEM '04 LS1 casting heads (don't need valves, springs, etc.) I'd be interested if they're unmolested and a solid core.

C5 Pete

Congrats on your win and PB!

pit-man

Rob Petyo

Something like this in a 15inch

Tar Heel

Yes sir. That is them! But don't you have to buy 16" rears and 17" fronts to clear all of the OEM C5 components?

Rob Petyo

16's would work all around but you would have to modify the upper balljoints in the rear (slightly) with a hammer to make them fit. I am running 15" Bogart RT's all around with a 26" tall tire and those D10's are a 28" tire for when I get around to spraying some N20. Most folks do run the 17 up front because the tire selection is better. There isn't too much as far as a bias ply tire for a 16 inch wheel.

123sugey

Bogart D10's.... Drool... Drool !

joe11204

Wow, nice wheels.

Rob Petyo

Straight and shinny

I can't wait to get them on!

RonSSNova

Nice job! And you did all the work yourself. Has to be gratifying for sure.

Watch the duration on that stock eliminator cam....sometimes the lobes are square! Ha!

I have my unmolested stock heads collecting dust, but they are 2000, 853 castings.....dang. You really should have no trouble finding some.

Ron

Tar Heel

I can run an 853 casting. When you get a chance shoot me a PM with what you'd like to have for them.

Does someone make a 27" or 28" DOT drag radial for 16" wheels and then a matching 17" skinny front in maybe a 27" height?

Tar Heel

I see Hoosier makes a 27" or 28" DOT drag radial and I believe they also have someting in their bias Quick Time Pro about the same size for 16" wheels. Who makes a 17" skinny radial that is about 27" high? I've lowered the stock lowering bolts all the way down but still have about an 1" or so of fender gap I'd like to fill and have always liked racing with a slightly taller front tire.

Wickd1

Congrats, youve done well

C5 Pete

You have a 2004 with 853 casting heads? How did that happen?

241/243 are the way to go.

Tar Heel

It doesn't. NHRA allows us to run any of four LS1 castings. Here is what their tech page shows:

NHRA Technical Specifications
For
2004 Chevrolet Motors


ROD
BORE STROKE DISPLACEMENT CYLINDERS LENGTH
3.386 3.386 122 4 5.728
3.386 3.724 134 4 5.768
3.620 3.310 207 6 5.700
3.800 3.400 231 6 5.960
3.898 3.622 346 8 6.100 4/29/2008



Issued: 1-10-05
Revised: 5-24-06 WR, 01-03-07 WR, 4-17-07 WR, 7-10-07 WR


R.R.
H.P. Disp. C.R. Ind. Make Model Intake Manifold Lifter Head cc Notes

140 134 DOHC 10.0 PFI GM/Delco 12568796 24467211 1.69 var 50.7 3

170 207 10.0 SFI GM/Delco 25315362,25354418 Upper 24508236,24506288 1.60 H/R 25.1 1 25391343 Lower 24508644,24506261

200 231 9.4 PFI GM/Delco 24503382,24503386 see note 7 1.70 H/R 47.8 8
205 122(S) 9.5 PFI GM/Delco 12565553 12584350 1.69 var 51.7 4
Supercharger casting 316265
240 231(S) 8.5 PFI Delphi 24504502, 12474839 1.70 H/R 47.8 6
Eaton Model 90 Supercharger


350 346 10.2 PFI GM/Delco 97040,726178 see note 5 1.70 H/R 64.9 2
23949,2677D1
23950
405 346 10.5 PFI GM/Delco 97040,726178 see note 5 1.70 H/R 63.9 2
23949,2677D1
23950

Notes
1 – Throttle Bore – 2.204” (56mm)
2 - Throttle Bore – 2.953” (75mm)
3 - Throttle Bore – 2.283” (58mm)
4 - Throttle Bore – 2.677” (68mm)
5 – Manifolds – 12573572,12560688,12561184
6 – Throttle Bore – 2.843” (72.2mm)
7 - Upper manifold - 24504808,24505489,24503339,24505923,1710 9477
Lower manifold - 24504816,24505831,24502743,24502745,2450 5728
8 - Throttle Bores - 2.598" (66mm)




H.P. Disp. Deck Cl. Piston Height Vol Valves Cam Lift Springs

140 134 .018 Dish .024 2.2cc 1382/1185 397/397 Beehive
170 207 .030ab Dish .246 28.5 cc 1760/1430 480/472 Beehive
200 231 .035ab Dish .045 4.3cc 1805/1525 485/495 Beehive
205 122 .059 Dome .093 5.4cc 1382/1185 397/397 Outer w Damper
240 231 .035ab Dish .142 12.8cc 1805/1525 485/495 Beehive
350 346 .015ab Flat 0 0 2000/1550 515/515 Outer w Damper
405 346 .015ab Flat 0 0 2000/1550 551/551 Single Beehive



H.P. Disp. Gasket Head Cast

140 134 .020 24462304,12580074,12583133
170 207 .055 24507487,10218170,12580234
200 231 .055 24504781,24502261,24502136,24508134
205 122 .025 55556574
240 231 .055 24504781,24502261,24502136,24508134
350 346 .052 806,853,339,241
405 346 .052 12564243

So the 241/243 is a better head?

C5 Pete

243 are the best head for the LS 1. They flow better and they bump the compression a bit. 241 are the next best.