DaveNH
Well-Known Member
- First Name
- Dave
- Joined
- Nov 13, 2017
- Threads
- 18
- Messages
- 300
- Reaction score
- 270
- Location
- New Hampshire
- Vehicle(s)
- Hyundai Sonata
- Thread starter
- #1
still enjoying my M54 engine in my almost 20 yr old BMW Z4BMW still has an I6
No worse than putting headers on a V8 in an A Body Mopar.You I6 fans never had to change exhaust manifolds?
Changing spark plugs in a 429 Cobra (with headers horrible job) - unbolt engine mounts, carefully raise engine..... etc.No worse than putting headers on a V8 in an A Body Mopar.
Nope, never had one go bad or crack. I've had I6 engines since my second car when I was about 16 (waaaay back in the 70s)You I6 fans never had to change exhaust manifolds?
The header of the 90s 4.0 would split or crack at the collector. After-market headers used a flexible pipe on one of the pipes to allow for expansion and contraction with less stress. Seems there were other things 3rd party suppliers did. I never had one crack while on a Jeep but the engine I got for my Eagle had a cracked collector and I had a neighbor slice it off and re-weld it. Stupidly, I told him to put it back on in the same position instead of turning it to clear the front differential pinion brace! So I had to make a brace to clear my exhaust. If that head pipe ever goes bad I'll probably have to drop the engine out to replace it.I put a header on my 4.0l XJ. It’s been a while, but I remember it being a pretty easy job. Accessing anything on the front of that engine was a biatch though…
No worse than putting headers on a V8 in an A Body Mopar.
I had an I6 that I put several different manifolds and headers on. Just got tired of it. Wasn’t hard at all after the 3rd time.Changing spark plugs in a 429 Cobra (with headers horrible job) - unbolt engine mounts, carefully raise engine..... etc.
Nope, never had one go bad or crack. I've had I6 engines since my second car when I was about 16 (waaaay back in the 70s)
I put headers on it for a while and that totally screwed things up because there was no longer a heat source for the choke or to keep the intake and carb warm - think carb icing.
So I swapped back to stock exhaust.
I put 120,000 on that one, I've had several since.
Granted they've mostly been AMC but both of my grain trucks were Ford powered by their I6 engines.
Even if I had - it's no worse than many things.
I've fixed exhaust leaks for other people but never viewed I6 manifolds any worse than a valve job on a big block Ford. That's a back breaker.