Without running a turbo, supercharger or nitrous, what is the most HP and tourque that a 400 can make? I am running 330 Horse and 450 ft. lbs. tourque, and am wondering how mush more it will be possible to go. Any input is greatly appreciated. Thanks.

 

Well that still depends on what grade fuel your talking about having to use for everyday driving.I use B33 Racing Fuel in my motors, But I never tried to see just how low of an octane I could use to run my motors.

 

The only thing we know for sure is that 800HP is possible. Everything after that is theory. Not many people have considered pushing this type engine to the limit. When you go beyond the limit, something breaks and we discover the next weakest link.

Better fuel, more compression, more displacement, more airflow, more RPMs, stronger parts, lighter parts, and eventually there isn't a single part remaining from the original engine.

I think we will see over 1000HP N/A in the near future. Probably a custom stroker over 460cid using Arao 4 valve or Pro Stock type heads.
It always comes down to how much money you're willing to spend.

 

>The only thing we know for sure is that 800HP is possible.
>Everything after that is theory.


if shazam switches to alchohol, he is at 850-875hp


it all depends on the build, i guess if i had gone with a roller setup i could have gotten a lot more that the 500 i got. i achieved what i was after. the ricers dont chase my son, and the young chibby guys, well they know they dont want any of the cleveland.

 

GT40 what have you done to get 500HP? How much money and how much machine work? Would you have been better off with a 460? Why do you choose 400 over 460? I personally like the 400 because I like to surprise the 460 guys and it's a really tough motor.

 

At 800 HP, what kind of tourque numbers are you pumping out?

 

>GT40 what have you done to get 500HP?
>

i wanna know too! for some reason, i thought you had a much milder setup. besides info on everything under your hood and above the crossmember, i'd also appreciate any info on where you're making the power, like dyno numbers or graphics, if you have them.

is this motor in the cougar?

 

[updated:LAST EDITED ON 01-Sep-02 AT 01:13 AM (EST)]yes mine is in the cougar. the secret to my set up is the 11.76 cr, the 2in headers, the 351 4v closed heads, and the cam. I have a 750 demon carb, a wieand xcellerator intake. i had the block milled .035 or so, flat top pistons, rhoades lifters and the msd box is set 6300rpm. now in truth it makes 495hp/#tq, but with the ram air on the car it will make a little more so i rounded up. to me its just a standard build. I dont have dyno pics, maybe after we do the head work.
i think we are gonna put in 2.25 and 1.75 valves in the heads and do other stuff. we are probably have to pull the motor to work on the engine bay, and we are gonna do that aod tranny.
No I never considered a 460, cause it wont fit, and I really dont like that motor. It is a good motor, we ran a few of the new type camaro's, they were all like what kind of windsor is that. When I told them it was a cleveland, all I heard was whats that. Then the old guy said Oh he has a cleveland, I dont want none of it.
This all started when someone told me I cuoldnt build this motor, I emailed Dan (Shazam), and Dave Williams (he's the guy that did the 434 stroker), they said I was right with my logic and it would work. My engine builder thought I was a little off, but did the work, and then he remembered some of his cleveland stuff, I dont think I really want to know, (he wont tell anyways). basiclly the 400 is just a tall deck 351c with a little stroke.

the cam is a crower cam pt num 15174 @ .050 227/233 .550/.547 lift
the 4v heads flow awesome on a 400. I have been thinking if this cam would be good as a roller type.

 

What's wrong with the 460 and why won't it fit? I'm also curious about the big valves. Why such a big intake? I think the 4V exhaust only flow about 60% as much as the intake side.

 

[updated:LAST EDITED ON 01-Sep-02 AT 09:08 AM (EST)]>At 800 HP, what kind of tourque numbers are you pumping out?


It says it all right Here...
And if you want to see 667 # of Torque applied to a F350 Check out my New Photo Album called ShaZam at work .

 

GT40man, I'm confused... you tell people you have a cleveland, but also seem to be saying you actually have a 400? are you running a 351C or a 400?

 

NO I have a Bored an Stroked 400.. I just use all the 351C parts to make all the H.P.

 

[updated:LAST EDITED ON 01-Sep-02 AT 10:25 PM (EST)]>GT40man, I'm confused... you tell people you have a
>cleveland, but also seem to be saying you actually have a
>400? are you running a 351C or a 400?


well lets see, I actually have a 400C, thats what all the info the car has on it. I pulled the motor out of a 1972 ltd, the engine tags and emission tags both said 400C. when i broke the motor down it had the flat top pistons so i have a 1971 engine in a early 1972 car. like i said my castings are DIF, not CF or MCC. this is one wierd motor, and also since i used 351c intake, heads, and other stuff, in reality I have a tall deck Cleveland. if one was to look at how to build a 351c and a 400, all the same rules apply, since after all the are the same series of engines. yes I tell the people here its a cleveland, cause they dont know the difference.


Brian, I went with the 400 cause, well I didnt think the 460 would not fit, it is larger and such. while i did not measure it againt the 428, the weight of the 460 was a factor as well. then there is the me factor. this is expalined as if i cant do then why, no said why, so i set out to prove them wrong. since i was looking at about the same costs to rebuild (excluding the cost of the 4v heads), i said what the hey. if the car had a 351c in it orig, the the extra 50 pounds would not make that much of a difference, but the extra 170 pounds of a 429/460 is to much. a 351c is 525lbs, a 400 is 575lbs, and 429/460 is like 710-720lbs.

since i started this venture, i have gotten a line on 4 351 2v motors and a 72 4v cj motor. people are so nice to me when i say i got a cleveland and i love the motor. i get instant respect from the old guys and fear from the new kids, the ricers, well they get left behind. all because i use the term cleveland. so even if some of you dont agree with me as to i have a 400c, well thats what i got and made. i hope none of you think i have taken your comment in a bad way, its just my wierd logic.

ps that c5 vette doesnt like the cleveland either.

 

See you did your homework on your build up ...

Good Book report you go to the front of the class..

Just keep spanking them ..

 

I'm not offended by any comments as long there are facts to back them up. I put a 429 in my '70 Mustang 20 years ago when people were telling me it wouldn't fit.

I needed a short water pump, relocated the oil filter and bought some engine swap headers, but that was it. They (429s) came in '71 Mustangs and they are less than 50 lbs heavier than a 428 FE. I'm sure you can fit a 460 in a Cougar.

Just to be different, I have plans for 2 400 strokers. With aluminum intake and heads, they should weigh less than a stock 351C.