Do the TPI and LT1 throttle bodies have the same front opening? I want to use on of the 90 degree necks to reroute my air filter but they only list them for the LT1.

Sorry for the newbie question...

 

Hope I understand your question correctly. I'm using the LT1 elbow on my setup even though I have a MAF. The oval side to the throttle body is exactly the same. However the side to the airfilter is 3 1/2 inches in diameter on the LT1. The TPI is 3 inches in diameter. I made up an adaptor to make up the difference. I hope this answers your question. Allen

 

Thanks thats what I needed to know, I run a MAP sensor so the other end isn't a problem, glad to see its a bit larger!