Are they worth it?

[95Vert]

I have the gt-40 heads on my car right now with 1.7s and crane valve springs. I have a buddy selling a set of gt-40p heads for $200. Is it worth it for me to go through the trouble of switching them out and encountering unexpected problems? Is the power difference significant?
Thanks

 

[95Mustang302]

yes and no, save your money and get aluminum

 

[95Vert]

lol,not at the comment, but that I'm right at where I started.

 

[final5-0]

I'd be really suprised if you picked up 10

GT40's ain't that much less
&
GT40p's ain't that much more

Both are still ...... heavy iron ... oem old technology

Both give good gains for the buck
unless
You go crazy and dump a lotta $$$ in em

Grady

 

[95Vert]

Well then I guess they're not worth the hassle. Thanks

 

[BlackVert]

hey, who is selling them? would he sell them to me for $200?

would they be better than ported stock heads?

i'm in the market for new heads ...

 

[95Vert]

A guy I know here locally. And I'll talk to him as if I'll take them so you can get them for $200. Let me know.

 

[BlackVert]

A guy I know here locally. And I'll talk to him as if I'll take them so you can get them for $200. Let me know.

cool, are they complete? ie, would i just need pushrods and gasgets to install them?

also, i don't know much about them ... but i assume they are much better than ported stock E7 heads. yes/no?

last thing ... is $200 a good price for a set of GT40p heads? sounds like a good price to me ...

 

[OrangeMustangGt]

dont bother.....plus the PITA of the headers and burning plug wires causes less power output when your #7 cyl is dead.

 

[BlackVert]

but i'm getting un-equal length headers

 

[Pennywise2]

Sounds like a great deal!

 

[final5-0]

hey, who is selling them? would he sell them to me for $200?

would they be better than ported stock heads?

Maybe ... Maybe Not

That is the prob with ported parts

Just because a part has been ported ....................

That ain't no assurance you'll get gains from it
AND
You might even loose power

One can hose up a part by porting if they don't know whats what

Now about E7's vrs GT40's

If the E7's were done correctly ... they will out perform stock GT40's.

It is known the GT40p is a better performing head than the GT40 regular. The thing to keep in mind is ... it ain't that much better.

Now ... this part of my post is speculation but never the less, here is my .02 on the subject.

I don't think those GT40p's would gain you anything over your ported E7's. If you gained ANY amount ... it would be so small ... it wouldn't be worth the hassle.

I'd just hold off for some proven better flowing heads

Grady

 

[95Vert]

Grady, always giving great advice. Thanks

 

[BlackVert]

Thanks Grady. They were ported by "Thumper" who, if anyone, should know how to do it right. I think of him as the "Tom Moss" for heads.

http://www.thumperoforangepark.com

 

[final5-0]

Thanks Grady. They were ported by "Thumper" who, if anyone, should know how to do it right. I think of him as the "Tom Moss" for heads.

http://www.thumperoforangepark.com

I had forgotten you had him do your E7's

He has done so much work for so many ... if he didn't know what he was doing ... we all woulda heard about it by now

That stuff I said is just general info from back in the day when all we had were ported oem heads to work with

Next time you talk to him ... see what he has to say about the subject as he is way mo betta than me to give specifics about all this

Grady

 

[blksn955.o]

thumper e7's would make it pointless to swap to gt40 or gt40p's.

If your going to work with some gt40's...then I would rec. sending thumper your gt40 heads the reg. gt40 heads can be ported more than the p heads due to the water passage being closer to the ports/runners.

From 1st hand thumper gt40 head work it is just as good on the gt40's as it is on the e7's...NICE. Mine are awsome. I "should" be close to getting everything back legal and on the road for some numbers FINALY. I want to get some good ones for all the help Tmoss and Thumper have given me on this setup/project. The work they did was def. top notch on the parts I have.