Going to look at heads, intake and TB today.

[jwzg]

I'm pretty sure they do have those passages but not nearly anything like E7's. Matt

NO thermactor passages. I just removed the diverter valve and ran the smog pump straight to the cats. The "p" heads burn so much cleaner that you really don't need it.

 

[Gearbanger 101]

One sure fire way to tell is the valve size. Standard GT-40 heads are of the 1.84 intake and 1.54 exhaust variety as the GT-40P heads are of the 1.84 intake and smaller 1.42 exhaust variety.

 

[Mattys5Oh]

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Matt

 

[Mattys5Oh]

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