gt40 port sizes ? who knows ?

notchback

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May 9, 2010

#1

• May 9, 2010

• #1

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

Gettin Wired

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May 10, 2010

#2

• May 10, 2010

• #2

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

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May 11, 2010

#3

• May 11, 2010

• #3

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

 

tmoss

Gettin Wired

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May 11, 2010

#4

• May 11, 2010

• #4

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

 

Attachments

• BA vs AA Lower.jpg.webp

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notchback

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May 31, 2010

#5

• May 31, 2010

• #5

wow...big diff.

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

 

tmoss

Gettin Wired

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Jun 1, 2010

#6

• Jun 1, 2010

• #6

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

 

V

v8only

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Jul 3, 2003

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Jun 1, 2010

#7

• Jun 1, 2010

• #7

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

 

tmoss

Gettin Wired

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Jun 1, 2010

#8

• Jun 1, 2010

• #8

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