Dooe-r heads to make 700-750 hp ?? what will it take

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Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 1st 2014, 11:51 am

okay i have a stock virgin set of dooe-r that i picked up last summer for 500 $ that i couldnt pass up

im going back in forth to use these or buy a set of scj new

going to 466-472 ci
stock crank
h beams
prob flat tops

my question on these heads , i only wanna be in the 700-750 hp range which i know these heads will go a lot more . what will it take ?

bowl work and new valves and a good valve job ? only or would i need more done to them ? Obviously be set up with roller cam springs
im weighing out using these vs the scj

the extra weight of the iron is fine actually i think its better in this app .........pro dial is 9.00-17.99 dial in

if i knew i was going to have this maverick right now , i wouldnt have sold the Doves Randy did for me lol that combo i had would have been Perfect  Laughing 

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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 1st 2014, 11:57 am

from what i have seen , from a few locals that bracket race im very interested in the flying toilet setup on alky with the primer setup. The guy i help out with has a 66 mustang runs 9.00s 8.90s 455 ci sbf on alky with toilet his setup and tune he said was very much the same all year. Car is very consitant



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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 1st 2014, 12:01 pm

id like to use a viktor or The TFS "mafia" what ever one id be better off with
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  dfree383 on April 1st 2014, 5:38 pm

Use the SCJ aluminum heads since you have them and spend money getting them max ported. Sell the iron CJs to fund the porting job.
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 1st 2014, 9:10 pm

no i dont have the scj heads , i was thinking of buying them or using the dooe-r heads i have



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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  dfree383 on April 1st 2014, 9:34 pm

We'll that means you need to get some good porting done and if you can use domed pistons to get the compression up.

You'll need heads flowing in the 390 I 200 E at about .700-.800 about 14:1 compression and 270-275 intake and 282-287 exhaust duration on a 108, big headers and a well ported victor or a Mafia intake with an 1150-1250 dominator. 750 will be real close.
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 2nd 2014, 6:52 am

and i dont even need 750 hp i wouldnt mind being 700-750 range can be on the lower side of that as well
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 2nd 2014, 1:33 pm

....im prob going with scj with backcut on intake and bowl work
should be easier and more cost effective to get to 700-750 hp .


you may see the DOOE-R for sale on here in in sometime
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  dfree383 on April 2nd 2014, 1:45 pm

Did an engine a few years back, 466 with flat tops, big roller, weiand tunnel ram and 2 worked dominators and a set of full boogie p-51s. Got in the 740-750 range with that one.

You'll need a little more than a bowl blend and back cut to get 700-750.
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 2nd 2014, 1:49 pm

dfree383 wrote:Did an engine a few years back, 466 with flat tops, big roller, weiand tunnel ram and 2 worked dominators and a set of full boogie p-51s. Got in the 740-750 range with that one.

You'll need a little more than a bowl blend and back cut to get 700-750.


most builds i see on here are 800 hp plus with p51 heads and scj heads when ported
with the car being light weight if it comes up short of 700hp thats not bad either


Thanks for info
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  dfree383 on April 2nd 2014, 1:56 pm

Most of Those builds aren't only 466"s and most have a lot of compression.
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 2nd 2014, 2:06 pm

im not looking for ......planning on using alky setup and try to get atleast 12.1 plus compression

13.1 -14.1 would be  Cool 

i have so many options its not even funny

I have in garage stock DOOe-R heads - could use /could sell
i also have a scat 4.3 cast crank in garage brand new as well ...that didnt sell from before

i could do a 521-528 with 6.8 rods as well pretty easy .....i have a few stock cranks kicking as well



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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  bluef100fe on April 2nd 2014, 3:33 pm

If you already have a 4.3 stroke crank I would just use that with the proper pistons and rods and have a bigger engine that you don't have to run as hard to make 700-750 hp... Are you still interested in the ported scj's? My pulling buddy would probably do some trading with you as he needs another set of iron cj heads.... Let me know...
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  5pointslow on April 2nd 2014, 4:13 pm

send me a pm on details on the heads and we can go from there
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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  pigs521bbf on April 2nd 2014, 4:50 pm

How much do you want for the iron CJ heads?

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Re: Dooe-r heads to make 700-750 hp ?? what will it take

Post  bluef100fe on April 2nd 2014, 5:06 pm

Pm sent
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