gt40 port sizes ? who knows ?

[notchback]

there are at least 5 different gt40 lowers now, anyone know the port sizes? i'm not asking for guesses, i want real answers and part numbers are a plus

and thats just for the 302.. i think there are 2 diff lowers for the 351

im curious how much smaller explorer intake ports are compared to real 40's or cobra's

 

[tmoss]

The GT40 family of intakes have the part number that ends in "-BA" or "-AA". The AA lowers have a little more runner exit section - good tip for 100% stock classes if you don't want to cheat. The BA is .96"x1.65" and the AA is ~1.00" x 1.80"

 

[notchback]

you da man!!! ... good to see you still here too... it's been a while

 

[tmoss]

here is a look at them...................

 

[notchback]

wow...big diff.

you score that out for a 1250 gasket match ???

 

[tmoss]

That was to show what a 1250 size port would look like as well as a stock gasket.

 

[v8only]

great info, so what did the aa and ba's come on, or was it a mixed bag?

 

[tmoss]

don't know for sure - they come to me removed