lOOKING FOR SPEC'S 302/215@240

[ALMACK]

Originally Posted by G PETERSON RACING

Alan the 270/250 uses the gt40p heads, the 285/265/255 uses the gt40 heads. The gt valve train refers to valve size as being the gt40 valves. As you can see that our 95 Mustang that we sold to Justice's is a top qualifier with 270/250 engine. It has stock crank, eagle rods, ross NHRA-IHRA stocker pistons, 750 DP holley, Victor Jr. intake, and gt40p heads with a good valve job. The short block for both engines are the same except for the cam lift. As my son Brandon said we have tried both and the 250 is a better combo.
Help this helps. Gary Peterson

Thanks Gary.

That's good to hear that the 270 has more cam lift and better heads.

It looks like the 270 is the way to go for a carbed/automatic class car.

Thanks for the info.

[goinbroke2]

I'll second the thanks!
GT-40P heads were the ones put on v-8 explorers right? I don't imagine you can buy them new anymore?

[George Wright]

I run the 302 215/240 HP crate motor in my Probe. This is the Explorer crate engine. It has the GT40P cylinder heads. This engine was available from Ford Racing back around 2000.

Here are the specs that were sent to IHRA:



This is from the 2000 Ford Racing catalog:

[ALMACK]

Thanks George for posting that !

[G PETERSON RACING]

Alex,I see that the spec sheet that George posted shows the gt40p head on the 215/240 engine. George said they were on his Probe. I guess that is why Olin had them on his engine at Rockingham. I am glad that is cleared up, I was beginning to thank my old age was catching up with me. I see the cam lift is smaller than I thought it was.
Goinbroke:The last gt40p head that I bought were on craigs list. The first set I bought were new. The hard part of running this head ,is with angle plug, you have to buy headers that fit the gt40p head. Good luck.
Gary Peterson

[ALMACK]

Originally Posted by G PETERSON RACING

Alex,I see that the spec sheet that George posted shows the gt40p head on the 215/240 engine. George said they were on his Probe. I guess that is why Olin had them on his engine at Rockingham. I am glad that is cleared up, I was beginning to thank my old age was catching up with me. I see the cam lift is smaller than I thought it was.
Goinbroke:The last gt40p head that I bought were on craigs list. The first set I bought were new. The hard part of running this head ,is with angle plug, you have to buy headers that fit the gt40p head. Good luck.
Gary Peterson

I have fitted regular 302 headers on P heads and just changed 2 or 3 of the boots at the spark plugs to 90 deg. boots and that solved the problem.

Of course, with all the different design headers out there, one would have to experiment, but it is possible to use regular headers on P heads.

[goinbroke2]

Did some searching and gt40 were on explorers to 96. In 97 they went to gt40P heads.
As far as headers, the ones I have now are not optimal so I will be building a set of 1 1/2" primary approx 38-40" long. I'm leaning towards tri Y and possibly crossing pipes under car to have 180headers. Lots of idea's, now to find the engine! Nothing around here but there HAS to be explorers in the junkyards. I'll do a search after I get back from BC.
(hmm, check out the junk yards in BC while on Christmas vacation?....bet THAT won't go over good with the ol lady hehe)


Perhaps this is a dumb question but I also saw the higher lift in the IHRA spec's online and assumed (like a stocker) I could run any duration. According to Georges sheet, the lift is lower and there are spec's on the amount of duration. Is part of the crate motor spec's the exact cam you must use (not just lift)?
Must I use the F4TE-6250-BA cam or any cam with the same lift?

[Alex Denysenko]

Originally Posted by G PETERSON RACING

Alex,I see that the spec sheet that George posted shows the gt40p head on the 215/240 engine. George said they were on his Probe. I guess that is why Olin had them on his engine at Rockingham. I am glad that is cleared up, I was beginning to thank my old age was catching up with me. I see the cam lift is smaller than I thought it was.
Goinbroke:The last gt40p head that I bought were on craigs list. The first set I bought were new. The hard part of running this head ,is with angle plug, you have to buy headers that fit the gt40p head. Good luck.
Gary Peterson

Gary, I see that you are 100% correct.

Apparently my good buddy George has been lying to me for all these years.

George.....I thought you were my friend. Friends aren't supposed to keep secrets from each other.
No more hot dogs for you.

[George Wright]

No secrets here.