any good performance engine is ALWAYS going to post higher torque numbers than horsepower numbers.and no,this figure of 5,252 rpm is wrong.the motor was put to past 7,500 rpm on the dyno.and as to the heads.if the moderators won't object i'll post at least 5 companies that sell butterfly heads.and i see someone out there is paying attention and posted a company that does in fact manufacture 4v heads for the 460.and as for your weak opinion as to this engine being a poor performer on the track,the car that it went into posted a 6.35 second 1/4 mile run this past weekend.if you want to prove me wrong i suggest you build a rig of your own.what you are going to need is this:1. a 460 straight out of the crate.it's the only right way to start a race motor.
2.weiand 6:71 supercharger
3.edelbrock cams,model 2167
4.2 holley dominator 1,250 cfm carburetors
5.moroso ignition system
6.flowmaster exhaust system.it's running 2.25 inch lines

if this can't get you in the neighborhood of 900 ponies then you need to work a little more.

 

What block did you use for this build? An A-460 or an IDT?
On the exhaust by 2.25 are you talking header primary size?

 

first off you better learn something about hp it's not measured not even on a dyno, and on a high hp gas engine the hp will always be greater than the torque. exception to this rule is nitrous engines. the reason hp is higher is that it's not a measurement like I stated above it's a mathematical function of torque and rpms, with the base figure bieng 5252 rpms which is why the 2 will always cross at that rpm, and due to the formula used to figure hp a engine that has higher torque will have a peak hp at below that rpm level.
Next issue the wieand 6-71 blower is considered a street supercharger for very hot small blocks or mild big blocks not one pushing the 1000hp range.
Next no idiot is going to run an edelbrock 2167 cam in a race engine that is the performer cam and is the smallest cam available from edelbrock, and not race engine turning 970hp is going to run a wimpy hyd cam, and with 194/204 duration that is barely above a stock cam to begin with and is not even close to a decent blower cam due to not having nearly enough spread on the duration to allow the heads to exhaust enough for the blower, and with less than .500 lift and that duration figures it won't even hope to operate a 14:1 engine (I suppose that is static compression too, yeah right)
next running 1250 dominators first off no one makes the adapter to run that on a 6-71 second off that is too much carb for a 604 cid engine let alone a lowly 460 atleast do the math when your pulling numbers out of your hat.
Moroso ignition system? come on do a little research before posting I ain't even gonna go there since the don't make them that are used on any race vehicles that anyone still runs and infact have basically gotten out of ignitions totatlly for the most part except for some replacement parts for ricers.
Next in your first post you stated this was for a dragster well guess what dragsters don't use mufflers, and even if your gonna run mufflers 2.25 exhaust on a supercharged big block once again isn't big enough and would cause you more problems than you can count.
And lastly 5 companies that make "butterfly heads" not for the big block ford there isn't in fact the "butterfly" head was a SMALL BLOCK CHEVY deal take a look at the top of the forum this is a FORD website, and I know some of the top head porters in the country personally so lets here the names not some company that you heard about or read on some other forum. there are only so many companies that even make heads for the big block fords in the aftermarket, and 5 is pretty close to the number of total manufacturers.
You started this thread wanting to know how to build a 500hp engine, and we started giving you some good ideas the all of a sudden your a top engine builder building 1000hp engines, I don't think so expecially when you start pulling part numbers out of the air or your summit catalog your entire stated build would be lucky to see 500hp and is total BS

Oh and since you mentioned the company making 32 valve heads go to that web site, and look at the dyno charts they list one for a 350 chev pretty serious engine if you ask me since it has 713hp, and 578ft/lbs of torque notice the torque is much lower than the hp unlike the numbers you pulled out of the air.

 

Oh, and to continue I am calling BS on the 1/4 mile time you listed since in order to run a 6.98 190mph 1/4 mile pass in a 2200lb vehicle (which is very light considering a 460 with alum heads weighs in at 600lbs, and a typical driver 160lbs that only leaves 1640 lbs for frame body, trans, diff, tires fuel etc and the 600lbs is without the blower) but you would have to have 1160hp to run that time, and by your own statement your only running a 970hp engine.
And don't challenge me to build an engine I already have.

 

Dude, I'm speechless, really. I don't recall the last time I saw so much bizarre info regarding an engine build.

At this point, for this to believable, I need you to post dyno charts signed by a notary public, as well as vid of a 1/4 run and a letter from you mom verifying its authenticity. Thanks.

 

Don't you know?? He's got a mystical lepurchan that lives under a rainbow and splices Chevy heads onto Ford blocks for just a wee pot o' gold! This has got to be one of the most insanely out there threads I've read in a long time, but it was worth a good chuckle. Tip for the day: Don't feed a line of BS to a master engine builder who's 4x4 runs a faster quarter than most cars.

 

yea, but thats what made it so funny when he said this to Monster:

 

Bwahahahaaha, thanx guys that just made my day. I am waiting with baited breath to see of our "expert" will have the guts to post back. I want to find out what other great engine building techniques that I have been missing all these years.

 

Next time the loser that hired you wants to throw away money tell him theres a trash can in front of my house he can deposit it in, at least he would have the satisfaction of knowing something worthwhile would be done with 20000 dollars. Oh, and about that 2.25" exhaust, sounds like the prrrrfect setup for a stock 302. Also, for 5k you should be pushin more than 900 ponies. My BS-ometer just busted, now it matches the gauges on my truck lol.

 

It's my guess, given the high-horsepower application, that it's probably a D7TE or D8TE 4-bolt 460 truck block. That's the ticket for a build like this.

Sorry, I just love it when Monster Baby turns the flame-rod up to "incinerate" and I can't help baiting him.

 

I should have known that!! Sorry.

 

Now, now, boys....I'll bet that we all can remember that special occasion when we too had our FIRST beers...

Kinda like this, in approximate order.



And by the way, it's obviously the A-96 block. Was there any doubt??

 

Well it's one thing to come on and ask questions, that's what the site is here for. It's another to be clueless and ask questions but you gotta start somewhere and usually the tech heads in here are pretty patient in explaining things. When someone comes on talking out their second orifice and starts posting absolute nonsense, telling people how it's done when they don't have a clue . . . well things will start getting ugly. Rob has spent countless hours helping me with my projects even though I didn't know a thing about performance engines. Now that I do know just a little bit I badger him with even more stupid questions. He's always helped me out and had good advice. I just wish he would have told me from the beginning that my exhaust is too big. Now I've got to chop it all out and replace it with 2.25" Flowmaster. I'm getting butterflies just thinking about it.

 

Ivan, you and i both know no 460 can handle 2.25" duals, on my stocker i got a .00000000000000000000000000000000000000001 single, you'd probably want to go with like a 1" single AT MOST, i mean seeing as we all have such pewny engines. Next thing he'll tell us that a 1 liter GEO engine will outperform any stupid big block. LMAO

 

Burn!!!!!!!!!!!!!!!!!