CORVETTE exaust for the poly tank - The 1947 - Present Chevrolet & GMC Truck Message Board Network

guitarornothin · 11-13-2003, 08:17 PM

Im installing my poly tank i bought.
and i have to move my exaust, so i
thought about using corvette mufflers turned
sideways. Im going to put a 468 BIG BLOCK.
and i want it to sound unique.
but i have a 350 in it now.

but i got my poly tank in the mail and want to put it in

DO you think its a good idea about the mufflers????

I drew a pic of what im talking about.

im thinking about welding a exaust mount on the back of the mufflers and trying to use stock hangers.

I dont know what size the inlet and outlets are i need them to be atleast 2.5" to flow through a BIG BLOCK 468!

lukecp · 11-13-2003, 08:32 PM

I think it would work OK as long as the muffs aren't too close to the tank. If i am thinking on the same page as you, the muffs will be mounted before the rear axle and come out infront of the tires.

I might look for a different muffler though.....since the exhaust will have to make a 180 degree turn before coming out. Something that goes in one end and out the other would proably be a bit better for flow

cableguy0 · 11-13-2003, 10:01 PM

you can flow much better with other mufflers sharp bends restrict the exhaust and a 180 turn in that short of a space is definately sharp.

Opper77 · 11-16-2003, 12:39 AM

am I wrong in thinking that if it works on a vette, it's probably ok for the truck? The exhaust still has to turn 180 either way you mount the muffler right.....

TwinTurbo · 11-16-2003, 05:13 AM

the stock vette exhaust on the C5 is not nearly as restrictive as a lot of stuff that is installed on trucks. Not saying they flow a lot but certainly more than enough to support over 400Hp.

11-13-2003, 08:17 PM	#1
guitarornothin RUNN over AGAIN!!! Join Date: Jun 2003 Location: Big Spring, Texas Posts: 505	CORVETTE exaust for the poly tank Im installing my poly tank i bought. and i have to move my exaust, so i thought about using corvette mufflers turned sideways. Im going to put a 468 BIG BLOCK. and i want it to sound unique. but i have a 350 in it now. but i got my poly tank in the mail and want to put it in DO you think its a good idea about the mufflers???? I drew a pic of what im talking about. im thinking about welding a exaust mount on the back of the mufflers and trying to use stock hangers. I dont know what size the inlet and outlets are i need them to be atleast 2.5" to flow through a BIG BLOCK 468! Attached Images __________________ 67-72 TRUCKS ROCK 70 SWB shaved and a 72 front clip.and a poly tank. Peep mirrors and a BIG BLOCK 468 in the making. XNXNXNXNXNXNXNXNXNXNX ,/. EMAIL ME HERE!, Dont pm me please ,/.

11-13-2003, 08:32 PM	#2
lukecp Formerly yellow72custom Join Date: May 2001 Location: Austin, TX Posts: 7,531	I think it would work OK as long as the muffs aren't too close to the tank. If i am thinking on the same page as you, the muffs will be mounted before the rear axle and come out infront of the tires. I might look for a different muffler though.....since the exhaust will have to make a 180 degree turn before coming out. Something that goes in one end and out the other would proably be a bit better for flow __________________ '72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg

11-13-2003, 10:01 PM	#3
cableguy0 Senior Member Join Date: Apr 2000 Location: Delta,Pa Posts: 14,950	you can flow much better with other mufflers sharp bends restrict the exhaust and a 180 turn in that short of a space is definately sharp. __________________ Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.

11-16-2003, 12:39 AM	#4
Opper77 Ob-Gyn Kenobi Join Date: Aug 2003 Location: Edmonton, Alberta Posts: 489	am I wrong in thinking that if it works on a vette, it's probably ok for the truck? The exhaust still has to turn 180 either way you mount the muffler right..... __________________ '85 GMC Shortbox... I used to have a firm handle on life....then it broke off.

11-16-2003, 05:13 AM	#5
TwinTurbo Registered User Join Date: Sep 2003 Location: The Netherlands Posts: 994	the stock vette exhaust on the C5 is not nearly as restrictive as a lot of stuff that is installed on trucks. Not saying they flow a lot but certainly more than enough to support over 400Hp.



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