What size is the throttle body opening on the SO upper intake?
50 mm.
Mustang H.O. is 60mm. 90's 5.0 Explorer/Cobra Mustang/ "GT40" spec is 65mm.
The intake opening is closer to 60mm on the SO uppers I've seen, throttle body and EGR spacer are 50mm... HO opening are larger than SO...
Oops yeah he did say "on the intake". Would make sense that the intake manifold itself would have a slightly larger opening.
Intake manifold openings are as follows:
SO upper is ~60mm
HO upper is ~65mm
Explorer/GT40 upper is ~70mm
Neat thanks guys
....and the Trick Flow Streetheat/Trackheat pieces have a 75 mm opening if anyone wanted to know.....