Has to be a Single cast intake single 4, Cast Iron Block Wedge Engine.
Has anyone built anything close and tested on a realistic Dyno with numbers?
Thanks

1200 hp with a single four cast intake will be a little tough to find. Not sure anyone builds a NA crate engine that hits that number. GM just announced a ZZ632 big block which makes 1000 hp with a cast single four intake. Sounds like a very impressive combo but GM hasn't announced a price yet. You can call Best Machine and Ray Barton to see what those two shops tell you. I don't think you have many options in the Mopar world to hit that number.

They are saying 16-17k on the ZZ632

If you want a mopar BB that makes 1200 call chuck at Best . He has done it already .

Think that article said the 572 was that price, not the 632, which they didn't have a price on, as i recall, just speculation

Thanks for the correction.


The few things ive read said in the neighborhood of. Whats neighborhood mean, 17, 18k? Should be interesting.

The Detroit automaker did not offer a price to go along with this impressive new beast of a motor, but a new 572 with 727 horsepower typically costs around $16,000. Expect the price for this new 632 to be in that neighborhood. And start thinking of places to stick it.

Lol. Easy . But not N/A

Can probably be done or close to it, but with a well massaged modified cast single-4 intake converted for EFI, very very good set of heads/all other parts combo, and in the hands of the right engine builder who has a warehouse for you to fill it with enough cash! Call Best Machine, Book Racing, Buck, Uratchko, BES or even Brett Miller could get down with it if he wanted to.

With or without a power adder?

Here is a 1200 hp BBC with a single 4 bbl. Price isn't too bad. I bet a Mopar will cost $50K or $60K to make the same power.
https://www.besracing.com/611-bbc-conventional-headed-racing-engine.html

Here is a 632 Big Chief engine that is rated at 1200 hp. Single 4 intake. Price seems to be in line with what I'd expect.
https://awesomeengines.biz/bbc-632ci-1200-hp-big-chief-engine/

Naturally aspirated with no spray

As bad as I hate to say it, BBC is probably going to be the most reasonable option.

It's going to be expensive to begin with but you will easily take the Chevy price and double it for anything Mopar at this level.

If this is a track class requirement, then they are only looking for GM power in the class. Hemi head, NA not that much of an issue for the right $.

They are saying likely north of that.....

It can be done if your pockets are deep enough and you are willing to go there and have time to spend waiting for it to get done.

As for the Chevy engine it is a new cylinder head, symetrical spread port deal. It wont be coming in anywhere near $16-17k

This is well inside the bracket of "if the purpose is to go fast, boost is the best value per dollar spent".

My guess on the new ZZ632 price is $28,000 but that is just a guess based on where the market for 1000 hp BBC crate motors is. Some of it depends on if the EFI system is complete with controller, injectors and throttle body or if it is just a bare intake manifold. The EFI system alone will add another $5000 to the bill. Shafiroff sells a 632 twisted 20 crate engine that makes 1000 hp for $22,000. By the time you put some good parts on it the price goes up a few thousand but it is still a good deal compared to asking the machine shop at the local NAPA to build you a 1000 hp engine.
https://www.shafiroff.com/chevy-pump-gas-engine/632-bigdawg-twisted-sr20.php

http://sunsetperformanceengines.com/engines.cfm

Take your pick of cubes and head design from their pro series

605 to 655 cubic inch with Predator heads. The only doubtful is a single carb which would have to be at least a 1450 but easy with a tunnel ram and 2 dominators. I know a member here that had a 605 Predator with 2 carbs and with weight, et, calculation was right there with 2 carbs. I am in Ohio if you are close. Birdtracker