2 1-2 or 3 inch exhaust????

[1971scamp383]

hi everyone!!!...im about to do the exhaust system on my monaco.......im wondering which size of pipes to use.......2 1/2 or 3 inches......383 .030 over...stock forged crank polish and new bearing....edelbrock double roller timming chain...edelbrock torquer aluminium intake....2'' 4 holes phelonic carb spacer.....comp cams xe274.....edelbrock 750 cfm performer series....mopar performance distributor kit with orange box....taylor 8mm plugs wires....full length hedman headers 1 3/4 ..3'' out....440source aluminium heads(2.14 1.81 )....keith black dome pistons..(6cc dome)...10.1cr right now........thanks.....!!!!!!

[That One Guy]

my philosophy is the bigger the better, but I'm not always right

[75Dart440]

You didn't mention trans or rear gear, but for street car I would probably go with 2.5" since it will tend to help the bottom end power output.  Of course I could be way off here if here......say for instance.......you have lightened it to 1800lbs and have a 5.13 geared 8 speed trans in it!   

[68_Val_Sedan]

3" baby those C bodies have a long way to go to get the pipes out the back ...

[NYrr496]

Is the car going to stay a 383? In that case, 2 1/2" would be fine. If you ever plan on strokin' it, go for the 3" so you won't have to upgrade again.

[1971scamp383]

3" baby those C bodies have a long way to go to get the pipes out the back ...

WOW!!!!!!!!!!!!!!!!!!!thats a really nice eshaust man!!!!!great work!!!!....thanks for the pics....on my monaco im going to exit the pipes in the front of the rear wheels.....like the aar cuda ....i think it looks nice....(my opinion)...so i dont have a 20 foot long exhaust ....i think that im going to put 2 1/2 and see what it sounds like.....maybe upgrade to 3 inch later....thanks for the pics again!!!!!!!!!!

[cu440da]

If I had to do it again, I'd go 2 1/2" instead of 3" just for sound quality alone.