2+2GT

Yep. The GT40 is interchangeable with the 289/302 head. The GT40P has a unique plug angle, where the plugs stick almost straight out, and would hit most manifolds and headers.

Starfury

For $1200, I'd go with the AFR's.

If that falls through, PM me and I'll let you know how to get a good deal on a set of Trick Flows. I just put a set on my 331 and I love them

OCHOHILL

Bang for your buck? Slap leather and get aluminum heads-don't forget a good cam.

That's bang for the buck.

scootchu

Yep the GT40p's are the ones you heard about. These are the run of the mill GT40's.

htwheelz67

trick flows are the best bang for the buck, even with 202 160 valves they work great on small displacements as the int ports are smaller than most 202 valved heads so to keep up velocity yet the int valve is closer to the intake mani giving larger cross section area thus flowing like a larger head, at low and mid lift theres not many heads made that flow like a TW, also with the rotated int valve they give better PV clearance than ANY 202 valved head. Will make more power than an AFR 165 in almost all cases and will be maybe 5-8hp less (peak) than an afr 185 on a compatible engine but much more low end TQ.

rmodel65

also keep in mind the gt40s will not need bolt bushings for the head bolts the 351ws will

LynnBob Mustang

The '65 I'm looking at will be coming with a '95 5.0 and GT 40 heads with a Cobra R intake set up on it, how do I know if I got the GT 40p heads?
What do I look for so I know what headers to get that will fit?
Lynn

scootchu

I have read that besides the different plug angle the GT40's have "GT" stamped in them, GT40p's have "GTP" and the GT40's have 3 lines cast in the front of the and the P's have four.

scootchu

Now I am starting to wonder if I buy the complete 5.0 HO engine this guy has if I would be killing two birds with one stone.
It most likely has E7TE heads, which may be a decent byproduct of the sale. I know that they can't compare to aftermarket aluminum heads, but have read they can be worked into a decent head. Opinions?

I haven't ruled out spending money down the road, as I would like to build a 331 stroker over the winter and I need a decent block anyway, but I would like to play around with something for now.

Starfury

They can be worked into semi-decent heads, yes. I'm still not a big fan of putting money into stock heads, though. By the time you're done, you'll be pretty close to spending the same amount as you would on a set of aluminum heads.