Talk to Katech (sponsor of this board) and see what they can do for you with the LS7. They have some upgrades to the internals available.

 

454's dont run for ****.. I've never cared anything about a 454ci big block engine in a race car. they don't perform worth a damn for their size. The only big blocks that I think are worth fooling with are 500+cid race engines with aftermarket blocks and BIG heads. But, thats just my opinion..

 

SDPC's 402 LS2 shortblock - 4K
ETP Baby LS7 heads - 3K
LS7 Manifold - couple hundred
Throttlebody - haven't looked but probably 100 to 500 depending on OEM or Polished Billet aluminum aftermarket...
Cam Kit (Cam, Lifters, Rod's, Rockers) - About 1.5K for high end components
Computer, Wiring Harness, and extra - Not sure
Headers - will depend on what you're put'n the motor in but 1 7/8 primary tube would be a good idea for a beefed up 402 - anywhere from 300 to 1k or better (Headman retrofit's to Jet Hot Coated Kooks).
Radiator - if you already have on for a big block it will probably be more then enough.

For Carb tuners you could go to most circle tracks that run Outlaw's or Wing'd Outlaw's they typically run a 400 SBC with a Holley Alki setup. Nasty little combo.

 

Oh 600 Crank Horse (SAE adjusted)...
Oops.... with a 402LS you'ld probably be at 550 or better to the rear (which is close to 700 crank horse).

Or you could go with the SLP 600 Kit (AFR heads, SLP cam, and SLP 402 shortblock)... that would be a starting point of around 7k (hmmm no the ET, SDPC setup sounds like a better choice for 7k).

 

Bring The Noise youre way over my head haha

 

Just FYI, i wouldn't consider SLP 402 from the reports I've been hearing.

I say wait for the 6.2 block, and throw a stroker crank in there..do a 700 crank horsepower, streetable stroker.

Peace,
Josh

 

WHAT IS THIS WARHAWK LS7X?!?!it soudns so awsome does anybody have one or seen it or have numbers or anthing?

 

Ah screw it, just get the big block Chevy 572 (ZZ572/720R)

I want to build a car around that engine soooooo bad!

720 HP out of the box!

 

I think most of your questions were answered in your other thread. Nobody has it yet because it's not available, therefore no numbers.

 

I love what you are doing. When I was a teenager they were still making 69's. I'm a boomer and it was a 69 Camaro that sucked me into performance cars (my brother still has it). I wish my dad had been interested in such things when I was young.

I had a BB 427 in a 70 Camaro at one time and guess what, I no longer have the car but I still have the engine. Today I have a 2004 Vette with a stroked LS2 in it. I had built using an SDPC shortblock.

Having had both the BB Chevy and the LSx I can tell you that in my opinion the LSx has it all over the BB. In my opinion the only real advantage the BB has is it's ability to be built out to extremely large displacements.

The LSx block can handle 1000 crank HP with no problems. In addition its ability to produce HP and torque per cubic inch is greater than that of the BB. This is in large part due to the design of the heads, when you look at the aftermarket this gets even better. A set of AFR 225 heads can flow 320 CFM at .600 lift on the intake. The LS7 heads are even better, they will flow 350 CFM at the same lift. The amazing thing about this is that even at these flow rates they still work extremely well at lower lifts and lower RPM's. Then there's the ignition, crank triggered with individual coil packs, sweet! This all produces a great torque curve and can give you a very reliable street car. Don't discount the savings in weight either, just 200 Lbs can make a difference you can feel and it's as valuable as extra cubes.

Here is an example of what is possible. My LS2/402 has smaller heads than most 402's. I already had a set of AFR 205 heads and a set of LG 1 3/4 long tube headers so I used them. The cam is also smaller than what most guys on this forum use. My duration is 234/238 with a lift of .595/.600 on a 114 LSA (Comp XER Lobes). It idles very well at 900 RPM with an A4 behind it. At the wheels it produces 470 RWHP and 461 RWTQ with 3.73 gears. If you figure a 20% drivetrain power loss i'm at about 588 fly wheel HP (FWHP). If I had built the same engine using the AFR 225 heads and 1 7/8 headers I would have been at over 600 FWHP. In all honesty, for a car on the street with street tires I have already exceeded the ability of the tires to hold the car down. At the track I use slicks but have not been out with this combination yet. I will soon.

EFI also has some big advantages in a street car. The most significant being that you can put a much finer tune on a car. A carb is fine for a race car where the expected RPM range is very narrow. However, on the street a good idle and a smooth progression up the RPM band is important. I have owned performance cars using both, EFI wins hands down on the street and when the cam begins to get big it's no contest, EFI wins.

I have had both and I will take the LSx. But whatever you do I wish you luck. I am in envy of you and your Dad's project. Keep us informed as it moves along.

 

Le mans, you have now made me totally confident on which way i should go. its great to have knowledgeable people like you help me out and i can tthank you enoguh. Im going to try and take pictures of all the stuff i do and post it here. Now i jsut have to see what exact ls2 im going to go with. My dad really wants the 427 numbers on the side so hopefulyl i can incorporate that into my engine selection. I will keep you updated and thanks again.

 

Your Dad is probably nostalgic about the past, so am I. Speaking of the 427 I am anxiously waiting for the day that GM makes the ZO6 block, (the LS7) available to the public. It’s low cost larger bore and the heads they make for it are going to introduce some fantastic possibilities.



You could also buy an LS7 crate motor from GM. Your Dad would be able to see those 427 numbers just behind the headlights and you guys would have all the advantages of the LSx. Getting that engine up to 600 FWHP would not be difficult. A cam, headers and a good tune would probably do it. If you guys had been planning on paying someone to assemble an engine the LS7 crate motor could turn out to be the most cost effective option in the long run..



The classic styling of a 69 Camaro married to the new technology of an LS7. Gee, I wonder where I could scare up a nice 69?

 

MY dad read your post and syas you are exactly right haha. He feels the same way as you do and we did think about the ls7. I wanted to geth that and jsut put a cam in it and tune it but i have been told by people like w2w that they are very scarce. I think the wait is very long on one and i also was looking for a very complete, turnkey engine. Nobody makes a turkey ls7 but they do make ls2's bored out to 427's so that is the way i was going to go. Im not sure what else i would need to install the ls7 if i jsut ordereed the crate motor from jegs. I fanyone has info on how much it would take to put it into a 69 camaro that would be great. It's also getting hooked up tot he t-56. If it is not to much work to get the motor in then i think that would be an awsome route to take. Thanks a lot for your help.

 

I think you are right and I also think that using the LS2 block is a very good idea. It sounds like lots of fun and a great way to spend some time with your Dad doing something you both enjoy. As the years go by and you grow older you will be surprised at how many times you will look back and think about the days when you and Dad built a 69 with an LSx in it. I saw Chip Foose on Overhaulin one night. During the project he brought his Dad in to help. As he talked about the project toward the end of the show he explained how much it meant to him to be working with his Dad again. He began to cry.

Time will make your father more valuable to you than you could ever imagine at this point. Mine is 78 now and I treasure every minute I spend with him because I know know that they are numbered.

Have a blast guys!

 

I will probably realize it more in the future but i think i appreciate my dad more than most other kids my age. He's a single dad with no help and he finds time to go wrenching after he gets home from work and before he cooks dinner. Hes superman to me and its great learning how to tweek some nuts and bolts with the impact gun. Theres nothing better! As for Chip Foose hes a god. i cant believe what he does and im in a lcuky situation. The shop near me Golden Customs works on that show all the time and i get to go down there and check out what they are doing. I took my car there and he said it was beautiful so i gotta be doin something right!

 

Let us know when you are ready...we have them built and waiting