3 inch exhaust - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jose gutierrez · 03-08-2015, 01:00 PM

Is a 3 inch exhaust doable for a 65 c10 or is there kit I can bay ?

Hollow65 · 03-08-2015, 01:42 PM

Definitely doable, I run 3" with an (H) pipe. It used to run out the back but I changed it to dumps after the mufflers right behind the cab.

BR3W CITY · 03-08-2015, 02:14 PM

You can fit a 3" but if you don't need a 3" pipe, there isn't anything to be gained from doing so.

Hollow65 · 03-08-2015, 02:34 PM

Brew is right, if your not runnin balls out, go 2-1/2 and run some 3" tips if you like the look of the bigger pipes.

Jimal · 03-08-2015, 08:39 PM

I'm considering going with a single 3" or maybe 4" exhaust for the 400 in my K10. Everybody does duals, including my truck's PO, but they're harder to route around the transfer case.

LVPhotos · 03-08-2015, 09:15 PM

Unless you are running 500 hp there is no reason to run anything over 2.5". Same goes for my Cummins over 4" kills performance over benefits!
http://powerblocktv.com/post/the-top...s-for-your-car

brettster · 03-08-2015, 09:19 PM

I would say if your not running 500+ horsepower then 3 inch exhaust would be major overkill.

par4tom · 03-08-2015, 09:32 PM

I'm running a 400+ hp 383 stroker. Is 2 1/2 inch going to be enough? Just street cruising...

brettster · 03-08-2015, 09:38 PM

Quote:

Originally Posted by par4tom

I'm running a 400+ hp 383 stroker. Is 2 1/2 inch going to be enough? Just street cruising...

Yes,should be perfect,Run 3 inch tips for the fat pipe effect.3 inch exhaust is for the strip.IMO

jose gutierrez · 03-09-2015, 11:40 PM

I wonder if this kit from flowmaster will work

Flowmaster® Part #: 817654
Category Exhaust Systems / Kits - American Thunder®
Description Crossmember back 409S - Dual Rear or Side Exit - Moderate/Aggressive Sound
Installation File Download File Here
Material 409S Stainless Steel
Price: $668.95

BR3W CITY · 03-10-2015, 02:20 AM

Thats for the 67-72, but with the frame similarities you can probably make it work if you don't mind making a few slight adjustments to the hangers etc.

I generally don't think about buying "kits" for projects like this (i.e. non-latemodel stuff). Some racing shops or real custom exhaust places can put together a nice exhaust for less than a kit will cost with more freedom in muffler choice, routing etc.

Not every area has a legit place (and bad exhaust shops are just that, bad)...but if you do they are worth getting to know. Those same places are invaluable for stuff like intercooler piping if you ever wind up needing it.

luvbowties · 03-14-2015, 07:29 AM

X2 with ^^^^^. BR3W CITY is giving good advice. Get personal references from previous customers & get a muffler shop to do the exhaust work--some jobs you just cannot take away from the "pro's".
Sam

03-08-2015, 01:00 PM	#1
jose gutierrez Registered User Join Date: Dec 2010 Location: concord california Posts: 12	3 inch exhaust Is a 3 inch exhaust doable for a 65 c10 or is there kit I can bay ?

03-08-2015, 01:42 PM	#2
Hollow65 Registered User Join Date: Feb 2015 Location: San Diego, CA Posts: 409	Re: 3 inch exhaust Definitely doable, I run 3" with an (H) pipe. It used to run out the back but I changed it to dumps after the mufflers right behind the cab. __________________ At my worst I'm at my best

03-08-2015, 02:14 PM	#3
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 3 inch exhaust You can fit a 3" but if you don't need a 3" pipe, there isn't anything to be gained from doing so. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-08-2015, 02:34 PM	#4
Hollow65 Registered User Join Date: Feb 2015 Location: San Diego, CA Posts: 409	Re: 3 inch exhaust Brew is right, if your not runnin balls out, go 2-1/2 and run some 3" tips if you like the look of the bigger pipes. __________________ At my worst I'm at my best

03-08-2015, 08:39 PM	#5
Jimal Registered User Join Date: Jun 2014 Location: Connecticut Posts: 521	Re: 3 inch exhaust I'm considering going with a single 3" or maybe 4" exhaust for the 400 in my K10. Everybody does duals, including my truck's PO, but they're harder to route around the transfer case.

03-08-2015, 09:15 PM	#6
LVPhotos Registered User Join Date: Jan 2013 Location: Las Vegas, NV Posts: 1,853	Re: 3 inch exhaust Unless you are running 500 hp there is no reason to run anything over 2.5". Same goes for my Cummins over 4" kills performance over benefits! http://powerblocktv.com/post/the-top...s-for-your-car __________________ 1962 shortbed 408cui small block, TKO 600 5-speed, bagged Porterbuilt suspension. 18" Salt Flats http://www.cardomain.com/ride/332579...t-c-k-pick-up/ http://67-72chevytrucks.com/vboard/s...d.php?t=560081 Last edited by LVPhotos; 03-08-2015 at 09:20 PM.

03-08-2015, 09:19 PM	#7
brettster Registered User Join Date: Mar 2014 Location: Lockhart Texas Posts: 66	Re: 3 inch exhaust I would say if your not running 500+ horsepower then 3 inch exhaust would be major overkill.

03-08-2015, 09:32 PM	#8
par4tom Registered User Join Date: Nov 2012 Location: Kingsburg CA Posts: 581	Re: 3 inch exhaust I'm running a 400+ hp 383 stroker. Is 2 1/2 inch going to be enough? Just street cruising... __________________ My Build Thread http://67-72chevytrucks.com/vboard/s...d.php?t=705185 How to Get Audiophile Sound in 60-66 Trucks http://67-72chevytrucks.com/vboard/s...=1#post7236896 Building Your Own Speaker Kick Pods http://http://67-72chevytrucks.com/vboard/showthread.php?t=730495

03-09-2015, 11:40 PM	#10
jose gutierrez Registered User Join Date: Dec 2010 Location: concord california Posts: 12	Re: 3 inch exhaust I wonder if this kit from flowmaster will work Flowmaster® Part #: 817654 Category Exhaust Systems / Kits - American Thunder® Description Crossmember back 409S - Dual Rear or Side Exit - Moderate/Aggressive Sound Installation File Download File Here Material 409S Stainless Steel Price: $668.95

03-10-2015, 02:20 AM	#11
BR3W CITY meowMEOWmeowMEOW Join Date: Sep 2009 Location: MKE WI Posts: 7,128	Re: 3 inch exhaust Thats for the 67-72, but with the frame similarities you can probably make it work if you don't mind making a few slight adjustments to the hangers etc. I generally don't think about buying "kits" for projects like this (i.e. non-latemodel stuff). Some racing shops or real custom exhaust places can put together a nice exhaust for less than a kit will cost with more freedom in muffler choice, routing etc. Not every area has a legit place (and bad exhaust shops are just that, bad)...but if you do they are worth getting to know. Those same places are invaluable for stuff like intercooler piping if you ever wind up needing it. __________________ *'66 Short Step / SD Tuned / Big Cam LQ4 / Backhalfed /Built 4l80e / #REBUILDEVERYTHING* MY BUILD THE H8RDCPTR //\\ MY YOUTUBE CHANNEL REV J HD

03-14-2015, 07:29 AM	#12
luvbowties Registered User Join Date: Feb 2009 Location: southeasternfoothillsofusa Posts: 1,557	Re: 3 inch exhaust X2 with ^^^^^. BR3W CITY is giving good advice. Get personal references from previous customers & get a muffler shop to do the exhaust work--some jobs you just cannot take away from the "pro's". Sam



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