Does the GT40 upper intake have a 75mm opening?

[IndyBlk5.0]

I must be a noob, but I have searched the internet for this to no prevail. I know brothersperformance says it on their site, but its down and i cant get in it to get the info i need. I also can not find the search button for these threads..... What size is the gt40 (tubular) intake hole size? Hopefully 75mm?

 

[90mustangGT]

The GT40 upper has a 65mm opening.

 

[speedytang]

GT40 has a 70mm opening. I run a 70mm and it measures 72mm if you take a measurement.

 

[Grn92LX]

Just take a dremel and port match it to 75mm if your gonna run the 75mm TB.

 

[IndyBlk5.0]

Whats the best way to measure it to port match, I plan on drawing a circle of course and then doing it

 

[Daggar]

go to your local auto parts store and get a dial indicator for about $10.