Reply to "3785 Gets a 400 swap, fabbed 180's and fabbed mufflers"

pittcrewOwner etc. of 3785

I tacked the joints on 4 sides so that nothing would move while removing them from the car. I weld up to the tack then grind and sand the tack off and finish weld the joint.

Fast Fact: 48 joints at 6 inches circumference per joint that is 24 feet of welding just in joints!

I use a vise grip quick clamp to hold the odd shaped pipes in position to weld the joints. I have found this to be better that trying to clamp them to fixtures or in a vise. I ground the welding cable to the metal table and the pipe rests on the table.

The pipes are all welded the lengths came out as follows:
1=39 2=39 3=44 4=44 ½
5=38 6=44 7=42 8=41
This is Interesting as I thought that the #1 and #5 pipes were going to be the longest.

I install the pipes in the car to hard tack them to the flanges. I want to point out that all of the fab has taken place with the gaskets and port plates installed as per the instructions. This is done so that everything is spaced properly for welding.

10/14/089:11 PM

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