Hey all. Hope everyone is staying happy and healthy during these crazy times. Found that besides the nuttiness of working from home, I have some extra time to look at some long standing projects my truck has been begging to have finished up.

So my 52 3100 came with a pre 48 manifold installed. The heat riser valve froze (i have since freed it up) and I was having some major intake issues. It was running really poorly. I found the correct NOS Intake and Exhaust manifolds for my truck last year and have them installed, but as most of you know (I did not) the manifold outlet on the pre 48 was straight out, where the 48+ exhaust comes out at a 30 or 40d angle.

I want to have the local shop bend me a up a replacement head pipe that I can then install into the rest of the system. I looked at buying one online but with currency exchange and shipping its crazy to order one into Canada. The shipping charges are more than the part... I talked to the local exhaust shop, but to have them bend it they need the specs/measurements on the original. I am hoping one of the amazing folks here have these specs filed away somewhere. I could drive it there with just the Manifold on, but worried that with no back pressure I could cause some damage? Open to thoughts on this, as it would be whole lot easier... but not wanting to chance causing a bigger bill somewhere else...

Thanks in advance for the input!

Matties