Joined: Wed May 2nd, 2018
Occupation: Elevator Design Worlds Tallest Buildings
Interests: Ranger Based Vehicles and OFFROAD
Reputation Points: 5319
My BII uses solid engine mounts and mostly solid trans mount, yet the exhaust is using stock hanger locations..that is an interesting point you bring up, my drivetrain is rigid mounted, so is my body, but the exhaust is hanging free! LOL
I only leak in one place, where my downpipe connects to the header on the pass side, I believe my downpipe is actually deformed, that's where the Chevy donut comes in next time I have the pipes off I will put one of those in there it will seal......(been there done that)
I ran the cheap gaskets Robert shipped with the original TMH, tried stock gaskets, I tried fel pro, I tried copper ($$$$) finally was turned onto the Percy's and never looked back!! I was happy to see the Mr gasket you can get at any parts store for the 302 are made the same way....
The locking header bolts are nice, however they will not fit the TMH in 2 or 3 of the locations because the tubes are too close to the bolt hole. Installing TMH headers on a conversion like my BII is one of those things where you have to put all the bolts in place with just 2-3 threads and then slowly tighten them all down together, otherwise you will never get all the bolts in... I have done this so many times on 4 different trucks now I am very familiar with these headers!!!
I build custom RBV, specializing in drivetrain conversions, wiring, suspension and complete custom trucks