Exhaust dilemma

[bishes66]

Hello, first time posting since my initial 'welcome wagon' post. I got the car more or less running but I need an exhaust for this beast! 440 stroked to 512, no plans on racing but I don't want to do any damage to the motor. With the rear suspension modifications my uncle did, the 3in TTI exhaust will be a tight squeeze so I'm looking at the 2.5in to ensure fitment and bring the noise level down a little. Any issues with running the 2.5in with such a big engine? WOT will be rare, very very rare, if it happens at all since I won't be taking this to the track.

 

[RemCharger]

2.5 will be perfectly fine. And fit better.

 

[INTMD8]

It's not so much engine size but horsepower. That being said if you feel it will rarely be WOT you won't have any issues with dual 2.5

 

[bishes66]

Excellent, thanks guys!

 

[Don Frelier]

I would include an h-pipe with the 2.5"

 

[33 IMP]

I would certainly run 3" headpipes and mufflers, then 2.5" tailpipes. Exhaust cools through the headpipes and mufflers, so tailpipe size is not as critical.
(Factory exhaust on hemis/440s had 2.5 headpipes, 2.25 tailpipes, same reason.... dont need to be as big, gives more room).

 

[Bird 426]

Mufflers would be more of a concern. 2.5' s will definitely fit better. My stroker Dart was fine until I put Quietflow mufflers on, really cut performance. I have a hearing condition, over sensitive, it's called Hyperqusis. So I live with less performance. Something is always a trade off!

 

[WileERobby]

I would include an h-pipe with the 2.5"

... and that would suit your application perfectly.