HP Edelbrock ?

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HP Edelbrock ?

Post  whitefield on March 11th 2016, 11:34 pm

472 11.5:1  with custom solid roller cam .The heads listed below and no port work or valve work . I do not  know the cam specs as the owner is tight lipped about that . Vic intake , 1050 2 1/8" headers. So here is my question can or will these heads as cast or sold make 854 hp as claimed the owner ?

http://www.edelbrock.com/automotive/mc/cylinder-heads/ford/victor-jr-460-cj.shtml

Also what is the most hp that has been made n/a in stock or as sold form with the above heads ?

Thanks !
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Re: HP Edelbrock ?

Post  BBFTorino on March 12th 2016, 1:30 am

850 horses with stock, unported Edelbrock heads??....hmmm, I highly doubt it. If it was 500+ cubic inches maybe, but a "little" 472 isn't going to cut it.
This is only MY opinion, of course.
But I'd think it would be hard to eclipse the 700 mark with these heads.
Did he say how much nitrous he's using??...LOL Very Happy

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Re: HP Edelbrock ?

Post  Gregaust on March 12th 2016, 3:38 am

I like the Edelbrock heads and they can make ok power . In the 600 range pretty easy with some basic porting and on a stroker .

854 i'm thinking was a very happy dyno Evil or Very Mad

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Re: HP Edelbrock ?

Post  dfree383 on March 12th 2016, 10:23 am

I did 800hp with them on a 466 but it's no street build.

Eddy heads will do anything A A429, blue thunder, iron CJ or TFS street head will do
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Re: HP Edelbrock ?

Post  gmsmkr on March 12th 2016, 10:27 am

Box stock I just can't see it...unless it's not really a 472

I would think it needs to be in the mid 500ci to and some rubbing on them to see that kind of power NA
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Re: HP Edelbrock ?

Post  supervel45 on March 12th 2016, 2:45 pm

I don't see it with 11.5/1 compression.

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Re: HP Edelbrock ?

Post  windsor on March 12th 2016, 3:23 pm

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Re: HP Edelbrock ?

Post  supervel45 on March 12th 2016, 4:02 pm

^^^^^ Yes So what?

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Re: HP Edelbrock ?

Post  supervel45 on March 12th 2016, 4:09 pm

326/207 cfm come on really now.

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Re: HP Edelbrock ?

Post  rmcomprandy on March 12th 2016, 7:11 pm

At a enough cam and high RPM it will certainly make that much horsepower at the expense of lower RPM torque.
I was witness to a iron headed 429 Super Stock engine with one 780 cfm 4 barrel making over 870.
Several people here were witness to that engine.

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Re: HP Edelbrock ?

Post  DaveMcLain on March 12th 2016, 7:43 pm

I've had some ported ones make 750 horsepower very easily on a mild solid roller cammed 521, about 6200rpm or so which is cool for a fun bracket racing engine.


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Re: HP Edelbrock ?

Post  supervel45 on March 12th 2016, 8:00 pm

854HP 472 cubes and 11.5/1 207cfm exhaust flow just seems pretty high, I guess anything is possible.

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Re: HP Edelbrock ?

Post  windsor on March 12th 2016, 11:15 pm

supervel45 wrote:^^^^^ Yes So what?

Just an observational reference relative to the original question.
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Re: HP Edelbrock ?

Post  whitefield on March 13th 2016, 6:18 pm

Ok these are out of the box no porting heads on a light race car ! 854 flywheel hp

I am just having a hard time rapping my ignorant mind mind around this.^^^^^^ !



So if this is the case a few more points of compression and some port work then 1000 hp would be attainable ! scratch study Arrow
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Re: HP Edelbrock ?

Post  rmcomprandy on March 13th 2016, 6:25 pm

whitefield wrote:Ok these are out of the box no porting heads on a light race car !  854 flywheel hp

I am just having a hard time rapping my ignorant mind mind around this.^^^^^^ !



So if this is the case a few more points of compression and some port work then 1000 hp would be attainable ! scratch study Arrow

If you can get that engine over 8,500 RPM without hitting a "wall" it would not be difficult from there.

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Re: HP Edelbrock ?

Post  manofmerc on March 14th 2016, 6:42 am

My Edelbrock equipped 460 with a 250-259 580-608 sft cam victor intake 1050 4150 carb c6 4.56 gears 3400 lbs will go 120 in the 1/4 10.86 I don't have an electric fan or water pump and 11.67 compression ratio .I have another short block again with a RM cam with more lift and duration to try out at some time .The edelbrocks are supposed to have one of the best ex ports available of the common heads .The intakes not so much.Looking at mine they are a lot of bumps from the head bolt boss .I think the potential is there and they are a quality piece .When I purchased them I removed a set of dooe-r from my 466.The dooe-r had the exhaust ported and both in and ex bowls polished .They had been milled how much I don't know .With the iron heads I ran a 12.25 with the edelbrocks 11.96 everything was the same except the heads .My opinion was first of all my iron heads weren't so bad and secondly three tenths for $2000 ?? I am thinking of having the edelbrocks ported by a professional and running Randys cam maybe a 10.50 is possible By the way enjoyed our conversation the other night Mr. Whitefield take care .Doug

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Re: HP Edelbrock ?

Post  supervel45 on March 14th 2016, 10:38 am

I did something similar but not on a BBF and had pretty much the same result. Wish I would have added another point of compression when I switched to aluminum. I think the 60 or so lbs of weight loss helps e/t some also. Nothing wrong with cast iron if weight and octane are not major concerns.




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Re: HP Edelbrock ?

Post  whitefield on March 15th 2016, 9:36 am

manofmerc wrote:My Edelbrock equipped 460 with a 250-259 580-608 sft cam victor intake 1050 4150 carb c6 4.56 gears 3400 lbs will go 120 in the 1/4 10.86 I don't have an electric fan or water pump and 11.67 compression ratio .I have another short block again with a RM cam with more lift and duration to try out at some time .The edelbrocks are supposed to have one of the best ex ports available of the common heads .The intakes not so much.Looking at mine they are a lot of bumps  from the head bolt boss .I think the potential is there and they are a quality piece .When I purchased them I removed a set of dooe-r from my 466.The dooe-r had the exhaust ported  and both in and ex bowls polished  .They had been milled how much I don't know .With the iron heads I ran a 12.25 with the edelbrocks 11.96 everything was the same except the heads .My opinion was first of all my iron heads weren't so bad and secondly three tenths for $2000 ?? I am thinking of having  the edelbrocks ported by a professional and running Randys cam maybe a 10.50 is possible By the way enjoyed our conversation the other night Mr. Whitefield take care .Doug

Good talking with you as well. Did you ever get a tail shaft housing ? Whitefield
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No

Post  manofmerc on March 17th 2016, 5:49 am

It seems these are a hard item to find .I will probably just keep the one I have .I would like to take some weight off my porky pig though (3400) I have a former coworker with two c6s maybe one of his is a long one .Good luck Mr. Whitefield.

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Re: HP Edelbrock ?

Post  IDT-572 on March 17th 2016, 9:47 am

In normal cases the HP you quoted the guy saying ain't happening. Out of the box heads, flat tops, and optimum camshaft, your looking at around 725 hp.

I made that HP (861) with a 557 15:1 compression, and heads flowing 50 cfm more than an out of the box Eddy.

And exhaust port flowing 40 cfm more.

Another build I remember was Bruno's he had Eddy's on it, and I think it was a 562 and made close to 850 hp , but they were ported and flowed more than my TFS Streets.

Uh no. It ain't happening. Unless as Randy stated, upper end build high rpm and trick pony sheeet. And I still don't see it doing it with 327 cfm .
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