Originally Posted By Saskabusa
Originally Posted By 440Jim
I have heard the Indy block may have interference issues with some headers as the oil pan rail (mounting surface) is a little wider.


I had this problem with TTI headers and a Indy block. I had a 3/8" header flange welded onto the TTI header flange to space the header away from the motor. It still needed some dinging on the tubes to clear.


TTI makes a specific header for the indy block.....looks like they bend and ding them abit to clear the pan rail and cross bolt.i had to wait for them to make em for me when i ordered them took 6-7weeks.

Last edited by KOS; 10/25/16 05:14 PM.