2.5 or 3" exhaust setup with my 351w? Standard stroke, bored 30 over. Super victor intake, and edelbrock rpm heads ported and flow 260 cfm at 500 lift. Street use daily driver.
Oh.my.5.0
I know I should use 3" for my 427W, but it's just not worth the hassle on a car I need to be able to drive to the dragstrip. I think people will tell you 2 1/2" is probably fine for 351W.
Every time I see actual dyno testing the bigger exhaust always wins (hp wise anyway). I know someone will jump in and say you don't need it and something about back pressure but if I was going to size headers and mufflers and everything else I would do it one time and go 3". Plus it gives you more flexibility in the future for more upgrades.
Had an exhaust shop do custom tail pipes less then $150 no clearance issues. Got a generic h-pipe from summit racing and that worked fine but I do have long tubes but once again I'm sure an exhaust shop would make short work of it.
Mine is loud no mater what size pipe is on it so I cant speak to that.
I would still do 3", better now then 3 years down the road when you would have to replace tons of stuff to switch. I doubt the loss will be 20-30 horse but obviously hp means something or you wouldn't have put a 351 in your daily driver...
just my 2 cents...
Mine is loud no mater what size pipe is on it so I cant speak to that.
I would still do 3", better now then 3 years down the road when you would have to replace tons of stuff to switch. I doubt the loss will be 20-30 horse but obviously hp means something or you wouldn't have put a 351 in your daily driver...
just my 2 cents...
Most dont want their combo optimized cause in there opinion its not streetable, exhaust too big, not worth it etc. Then wonder why their combo is down a bunch of power in comparison.
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