brickhouse15 Posted January 8, 2019 Share Posted January 8, 2019 Hello, I'd like to put a single 5" or 6" stack on my truck soon. END673. My question is: would 6" be too large? Do I have enough exhaust flow to prevent the gases from "the doldrum effect" and end up stinking up the cab etc? It would be 84" long. Thanks guys. Quote Link to comment Share on other sites More sharing options...
B MACK Posted January 8, 2019 Share Posted January 8, 2019 Hi there, I don't know an answer to your question, I will give you my opinion. Go with 5" , and not super tall if it's a B . Just my opinion. Quote Link to comment Share on other sites More sharing options...
PC68 Posted January 8, 2019 Share Posted January 8, 2019 I agree , and the 5” will look more correct . Quote Link to comment Share on other sites More sharing options...
Popular Post Hobert62 Posted January 8, 2019 Popular Post Share Posted January 8, 2019 I have dual 6"'on my B. my top sections are removable so it fits in garage door. With them removed the stacks are level with the top of the cab and its very loud. Sometimes exhaust will loop around and come into windows. With the top sections on I don't hear the exhaust unless echoing off buildings, and get no fumed. The big stacks give it a nice deep sound and the non turbo part gives it almost a v8 sound to it. I get lots of compliments on the sound from old truckers around here. If staying with single exhaust I'd just use 5", 6" would look out of place to me. 4 Quote Link to comment Share on other sites More sharing options...
brickhouse15 Posted January 8, 2019 Author Share Posted January 8, 2019 Great input guys, thanks. I’d like to do duals, but the air tank for the air start is in the way on the driver’s side. Quote Link to comment Share on other sites More sharing options...
B MACK Posted January 9, 2019 Share Posted January 9, 2019 Post a pict so we can see your project. No matter if you go with 5" or 6" , or single or dual , it will look great.. Classic iron looks good ! 1 Quote Link to comment Share on other sites More sharing options...
Timmyb Posted January 11, 2019 Share Posted January 11, 2019 I just was contemplating the same thing with mine. I ended up going 5 inch (twin) and think it looks in proportion with the r model cab. I think standard down here was 4 inch. Quote Link to comment Share on other sites More sharing options...
Wobblin-Goblin Posted January 13, 2019 Share Posted January 13, 2019 I went with 4" which was standard for the time. 1 Quote Link to comment Share on other sites More sharing options...
Wobblin-Goblin Posted January 13, 2019 Share Posted January 13, 2019 Here's a better pic of the exhaust, but it's before I painted the truck. Quote Link to comment Share on other sites More sharing options...
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