View Full Version : GASN 351 Headers For Sale
ggunter
07-10-2024, 07:46 AM
Hello all, I have a set of GASN 351 headers I am not going to use. I had bought them because the FFR headers kept cracking until I found the reason. So they are new and never used. I just bolted them on the engine. Paid $1100.00 will sell for $800.00 and free shipping in the continental US. 201628201629
Mind sharing why your FFR headers were cracking?
ggunter
07-17-2024, 09:42 AM
The front pipe cracked three times and I had it welded each time. When i bolted it up the last time it seemed like the front pipe wasn't tightening correctly. I took the header back off and put a straight edge on the mounting flange and it was warped by .090 at the front pipe. I had the flange machined flat and reinstalled. Been fine ever since.
ProfessorB
07-17-2024, 09:58 AM
Did you ever figure out why the flange warped in the first place?
fauxbra5.0
07-17-2024, 10:26 AM
Did you ever figure out why the flange warped in the first place?
The front pipe cracked three times and I had it welded each time. When i bolted it up the last time it seemed like the front pipe wasn't tightening correctly. I took the header back off and put a straight edge on the mounting flange and it was warped by .090 at the front pipe. I had the flange machined flat and reinstalled. Been fine ever since.
From #3 above your question.
rich grsc
07-17-2024, 11:26 AM
He asked Why
fauxbra5.0
07-17-2024, 12:19 PM
He asked Why
Whoops...jet lag & reading comprehension dont mix
ggunter
07-17-2024, 02:40 PM
No, I couldn't see any reason for it other than it was warped when I received them. I had no reason to check them originally. I assumed the cracking was from the long length of the header/ muffler hanging with a cam that shakes the engine a fair amount. Hasn't cracked again....so far.