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-   -   1972 Mustang CJ pure (https://classracer.com/classforum/showthread.php?t=35078)

X-TECH MAN 08-05-2011 10:32 AM
Re: 1972 Mustang CJ pure
 
Quote:
Originally Posted by Dave Turner (Post 273213)
Also, be mindful of the carb & intake restriction in Pure Stock. You will need to be happy with the Autolite carb and cast iron intake. A Stocker benefits from the optional Holley/aluminum intake swap.

Good luck Ian!!
The Holley and alum intake that is legal on the stockers is legal in pure stock also.

Dave Turner 08-05-2011 11:36 AM
Re: 1972 Mustang CJ pure
 
Quote:
Originally Posted by X-TECH MAN (Post 273219)
The Holley and alum intake that is legal on the stockers is legal in pure stock also.
I did not know that....thanks Terry!!

X-TECH MAN 08-05-2011 12:09 PM
Re: 1972 Mustang CJ pure
 
Quote:
Originally Posted by Dave Turner (Post 273229)
I did not know that....thanks Terry!!
Your Welcome.....Its been legal since they were allowed many years ago in the 70's. Robert Imbody from Ohio won several pure stock races back in the mid 70's while using them. They origially came on the Pantera. I think NHRA allowed the parts back in around 73-74 era and IHRA went along with them.

Hans Olsson 08-05-2011 01:00 PM
Re: 1972 Mustang CJ pure
 
Quote:
Originally Posted by X-TECH MAN (Post 273219)
The Holley and alum intake that is legal on the stockers is legal in pure stock also.
What years in NHRA stock are they legal for? All 4V clevelands?

Hans Olsson 08-05-2011 01:04 PM
Re: 1972 Mustang CJ pure
 
Quote:
Originally Posted by Bill Harris (Post 273211)
Since McClister has it going a second under, it surely is competitive! I would think the issue with going to the 275HP from your 266 would be finding the heads. They are probably pretty rare, especially ones that haven't been messed with making them illegal for stock (ported).

It appears the 71 280hp engine is identical to the 72 266, and they both have the 328hp NHRA factor.

It looks to me like the best 351C combo might be the '71 285/305 which is the high compression 4V. Same heads as the Boss 351 but with an unusually small cam. That is probably the reason the HP is so low for it.

If you want to run your car as a '71 and not have to deal with the hard to find and expensive 351C stuff, put a 429 in it. I have everything you would need if your interested. There is a lot of potential in that combo and only Vic Guilmino has really tried to tap it.
Heads from a 266 or 280 (D1ZE-DA) are legal to use on a 275 hp.

IanM 08-05-2011 04:38 PM
Re: 1972 Mustang CJ pure
 
Thanks for the information. I didn't know that the Holley and alum intake were legal for pure stock.
If there is anything else you can add it would be greatly appreciated.
IanM

X-TECH MAN 08-05-2011 05:05 PM
Re: 1972 Mustang CJ pure
 
Quote:
Originally Posted by hans olsson (Post 273241)
what years in nhra stock are they legal for? All 4v clevelands?
71-72

Hans Olsson 08-06-2011 07:42 AM
Re: 1972 Mustang CJ pure
 
Quote:
Originally Posted by X-TECH MAN (Post 273294)
71-72
Thanks Terry.

IanM 08-11-2011 02:17 PM
Re: 1972 Mustang CJ pure
 
Can anyone recommend a good engine builder in Ontario?
IanM

Dave Turner 08-11-2011 06:17 PM
Re: 1972 Mustang CJ pure
 
You have a PM Ian.


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