H-Pipe as standard setting?

torbsim · Nov 4, 2024

Hi guys, following on from my question about the intake manifolds, I was wondering if the original Mach 1 Mustang with 351C 2V had an H-pipe as standard or just two center extensions that connected to the rest of the exhaust system?

Thanks,
Ben

Hemikiller · Nov 4, 2024

The 351-2V engine only had a single exhaust, which was a Y-pipe from the exhaust manifolds into a single muffler and tailpipe on the passenger side. A factory installed dual exhaust was only available on the 4 barrel engines. The aftermarket has had bolt on H-pipes for the 2V engines for many years.

The NPD 5246-11D is the h-pipe for the 351C-2V engine.

https://www.npdlink.com/1965-1973-m...yle-dual-exhaust/1971-1973-351c-429?year=1973

torbsim · Nov 4, 2024

Yuck, that's annoying and I didn't know that. I already have a Dual Exhaust System here. Thanks for the info, but I'm not going to buy it again now... I hope I'll be forgiven in the Mustang Mileu.

c9zx · Nov 4, 2024

Just put it on and not worry about it. Chuck

torbsim · Nov 5, 2024

c9zx said:
Just put it on and not worry about it. Chuck

Yeah. Exactly

351c1971 · Nov 5, 2024

I believe the driver side tailpipes are all bent to fit around staggered shocks. They will fit with non staggered shocks if you pay VERY close attention the alignment around the driver side shock absorber and the rear sway bar.