cross breading of engines in Stock and/or Super Stock
 

Hi All,

Long time lurker, rare poster....

I used to heads-up drag race in the NMRA heavily during the 2000's and have since had kids, got involved in life, etc......long story short, I've been out of drag racing since 2009. But we all know that the drag racing bug never just goes away.......Fast forward to a few years ago, I acquired a 1966 Mustang roller that is a former NMRA Hot Street car. I've been piecing together parts over the past 2 years and somewhere along the way I decided that I wanted to go "new school" and am building a highly modified 5.0 coyote engine to put under the hood.

I let my NHRA membership lapse years ago and so I don't have access hard copy rules or the online rules. My question: Does NHRA have any Stock or Super Stock classes that would allow for a newer model year Ford engine to be run in a older body style?

The combo should run mid 9's naturally aspirated....I guess there is always Super Gas or Super Street, (or Comp?) but I like the Stock/Super Stock format much more.

Thanks for your help!!

Scott

Re: cross breading of engines in Stock and/or Super Stock
 

Re: cross breading of engines in Stock and/or Super Stock
 

You could run it in Super Stock under the new FGT/? class. You use an older car in the stock guide, like your 66 Mustang with a new/ 2008 or newer engine, like in your case 5.0 Coyote motor that is legal in a new cobra jet. Hope that helps.





Bret Velde
2003 SS/LA

Re: cross breading of engines in Stock and/or Super Stock
 

Easy peasy...use Dwight Sutherland's great tool...link here. Select the year/make/model of car and then select one of the weight/power values and it will then let pick "GT Class" and select the engine...you then have the potential classes to pick from.


http://www.classracerinfo.com

Re: cross breading of engines in Stock and/or Super Stock
 

Thanks for the help guys!!

One last question: I was looking at the Stock class rules years ago (I was always a foxbody guy) and I saw the success that Evan Smith had with his MM&FF Project Stocker. I recall that rotating assemblies had to come from an approved list as well as ported stock cyl head castings were illegal.

Would this apply in the GT classes?

My cyl heads are heavily ported, oversized valves, custom cams, aftermarket pistons and rods,etc.....

Thanks again!

Re: cross breading of engines in Stock and/or Super Stock
 

Nope, the GT classes are Superstock classes, so porting, polishing, any cam and valvetrain, etc. Still gonna need the rule book for the specifics. I'm a foxbody guy too!




Bret Velde
2003 SS/LA

Re: cross breading of engines in Stock and/or Super Stock
 

Don't think there is any chance your combo will fit into a GT class. You need to meet stock port volumes, stock type configuration pistons and standard valve sizes just to begin with. Maybe a SS modified class, SS/AM or SS/AS ?

Re: cross breading of engines in Stock and/or Super Stock
 

The other issue would be the chassis, I am thinking that you had to do some pretty extensive mods to make a Coyote engine fit in a '66 Mustang chassis. The towers and suspension components have to be dimensionally stock. That would be a no go also.

Re: cross breading of engines in Stock and/or Super Stock
 

Good thinking Jim, There's no way that coyote fit in the engine bay without getting rid of the shock towers and suspension and that is a big no no!!



Bret Velde
2003 SS/LA

Re: cross breading of engines in Stock and/or Super Stock
 

You are correct. There are no shock towers. The front end is a compete Rod & Custom Motorsports kit..

So it looks like any of the stock classes will be a no-go for me? I suspected as much, but thought I'd ask the experts.

Looks like it will be Super Gas or Super Street then....

Thanks for everyone's help!!