GM crate engines.

[Iloveburnouts]

So we're all on the same page, Project "Super High Redline" has been thrown on the back burner for two reasons.

(1) It is gonna cost a lot of money to get an LSX block to turn 10K and it will be a pill to get properly running in a 94 Buick Roadmaster which Will then no longer be my daily driver.

(2) I saw kit cars on factory five that sparked my inner kid and the evil in me to mess with my whole town's conceptions about cars.

So, I'm looking into getting a GM crate engine. Either the Ramjet 350 or the ZZ 572. I want the fuel injection in the picture.

So, Will the Ramjet 502 intake manifold fit on der 572? Those long intake runners must make some nice torque.http://www.ls1lt1.com/forum/images/smilies/popcorn.gif
:popcorn:

Also, are there any L98 throttle bodies that are one big ovular hole instead of the 2bbl style. Those tiny holes must hold it back.

But before all. Are the crate engines that good for building power... I don't want to have to deal with machining for a used block.

[OWN3D]

So we're all on the same page, Project "Super High Redline" has been thrown on the back burner for two reasons.

(1) It is gonna cost a lot of money to get an LSX block to turn 10K and it will be a pill to get properly running in a 94 Buick Roadmaster which Will then no longer be my daily driver.

(2) I saw kit cars on factory five that sparked my inner kid and the evil in me to mess with my whole town's conceptions about cars.

So, I'm looking into getting a GM crate engine. Either the Ramjet 350 or the ZZ 572. I want the fuel injection in the picture.

So, Will the Ramjet 502 intake manifold fit on der 572? Those long intake runners must make some nice torque.http://www.ls1lt1.com/forum/images/smilies/popcorn.gif
:popcorn:

Also, are there any L98 throttle bodies that are one big ovular hole instead of the 2bbl style. Those tiny holes must hold it back.

But before all. Are the crate engines that good for building power... I don't want to have to deal with machining for a used block.

I highly suggest NOT going big block for several oblivious reasons.
1 they cost A TON to build.
2Parts are more expensive and less interchangeable
3 the weight sucks
4you RARELY get 1hp per cube with a bbc vs sbc.

If you want a motor that will make great power past 7,500 why not do a 377 de-stroker?
400 block and 350 crank.
My friends on crappy iron heads (re-worked dbl humps) made 550 rwhp with a glide and 3.73's at 7,200rpm peak hp.
it revs insanely fast and idles lopey as hell at 1,500rpm
the 572 is greatly over rated.
you can interchange any bbc intake as long as the deck height is the same and the ports on the intake side match up.
the zz502 is an excellent crate though, id much rather have the zz383 600hp al headed stump puller in my ride though....
Btw the zz4 sucks, unless you want a daily driver with little excitement, they are like the target master crates from the 80's-90's

[Iloveburnouts]

So, the crate engines are sorta lame... But aftermarket parts still fit.

Are the Mains good? That's my prime concern. If not, got any recommendations on where I can get a new bare block. I know Brodix makes aluminum ones.
I've been wondering... What's the differnce between the LT1 and the Average small block as far as design goes and being interchangeable if at all? Bolt holes, coolant passages?

I may just go with a Golen LT1 if someone can UN-retard me.

[Kokamo]

If you have 14K to throw at a ZZ572, then why not go for the LS7? Just about the same HP, cheaper, and waaaay lighter.

What are you wanting a 10,000 RPM engine for? Thats indy car RPM, if you had an engine that actually made power at 10K it wouldent be fun on the street. (don't know what you are using the car for....just assuming street use)

If you want to build somthing with alot of power, think LSX series and supercharge it.

To awnser your LT1 question.......an LT1 engine has a reverse flow cooling system and old style heads will not work on an LT1 block.....they will bolt up, but they wont cool the engine properly. The LT1 block uses a different water pump hence the reverse flow cooling. It also has a different timing cover for the opti spark distributor. Other than that, nothing is changed.

Joe

[mtperformance]

I guess the only way to answer the question is to know , what are you using it for .

[OWN3D]

Brodix is a GREAT company and great people.
I would find a used 400 block that has the main caps and is a bare block, maybe with the crank if you want to build 406+ cubes. Try to find a block ending in the casting nmber 509, this is the strongest of the 400's.
The 400's have thin main webbings so they are more prone to cracking and "blowing the crank out the bottom" as so many rednecks say.
a 2 bolt 400 is stronger than a 4 bolt because the outer bolts pertrude into the already thin, weak material.
Go LsX or 400+ cube sbc if you want to make real power.
It's so easy to make a 550+ 406 if you have the correct heads, cam, and knowledge, not to mention the correct amount of $$$$

[Iloveburnouts]

I guess the only way to answer the question is to know , what are you using it for .

Project 10K is a "money is not a problem" experiment and is going to be a 94 Roadmaster turned into a bare bones racer. It won't be street legal. There's a lot more to it, but that's for the other thread.

For this particular thread, I saw a Cobra replica on Factory five racing. The full package has it's own chassis. I'm going to order the chassis for a sleeper and I'll do a little body work so it doesn't end up as blasphemy. (chevy in a ford car)

I'm obsessed with using track stuff on the street and street stuff on the track and since the stock market is nice to me, I want to try things with engines that nobody has ever done or considered reasonable. 10K is an almost no redline concept to eliminate shifting and replace it with acceleration and has a 40K budget for things that will have to be cast, or CNC machined out of solid billet. But since I spent 86% of this year's income on a house, I can't spend 40k on an engine plus the trans and all the chassis cutting, electricity, and my taxes all at once. And no way, I'm not getting a loan, on an experiment that may break anyway. That's why I've set it off until after I decide whether of not to get a G8 and finish this project which is going to total as much as 30K. I'm one of very few investors that actually spends my dividends and grows purely on capital gains instead of just getting rich. I also live in a small town without a track or machine shop. That's why I trust this site. I've studied methods quite a bit, but I just have a hard time finding what's available. I figure a younger crowd has better computer skills and finds more things.

[mtperformance]

Well if I was you (which doesn't sound like a bad thing you tycoon you) and your putting a kit car together like a cobra replica I would look into a aluminum sbc like an LS7 , but if you want to run a carb (not that you couldn't on a LS7) and want to keep it simple then Dart, World products and GM performance make aluminum GEN1 sbc and I know for a fact that World products sells complete engines carb to pan . If you are going to want more of a road course car than a drag strip car than I would go with an all aluminum small block whatever make ,because you are going to want that perfect 50/50 balance front to rear . But if you really want to go lite weight than you could go with a Buick Grand National 3.8 V6 turbo motor but don't ask me where you find one of those .