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08-25-2015, 07:43 PM
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#1 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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New exhaust time
When I did my swap I did the exhaust with the intention of replacing it later on down the road. Well the time has come to start collecting parts for it. I'm tired of the flow masters that are currently on it. My plan is to eventually have headers but I'm gonna wait to find a good deal on some. I will have a tubular trans x-member so that I can tuck it up in the frame rails and an x-pipe after the trains with dynomax bullets with tailpipes coming out of the back some where. The only thing I can't decide on is size. Motor is 5.3 w/243 heads and a pretty healthy cam 224/230 .612/.600 112.5+2.5, 3600 stall converter and probably 3.70 or 3.90 gears. Is 3" too big?
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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08-25-2015, 07:47 PM
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#2 | ||||
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"I ain't nobody, dork."
Join Date: Sep 2007
Location: Whidbey Island, Washington
Posts: 8,971
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Re: New exhaust time
3" is what I would use...
Gary
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'cuz chicks dig scars... My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread. The Rebuild of Creeping Death after the wreck Quote:
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08-26-2015, 08:32 AM
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#3 |
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1965 Chevy C10, 2005 4.8L/4l60
 
Join Date: Aug 2004
Location: DFW Texas
Posts: 8,546
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Re: New exhaust time
2.5" is plenty IMO. I have a 4.8 without the cam and run 2.25"
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Clyde65 Rebuild of Clyde http://67-72chevytrucks.com/vboard/s...84#post8338184 69 Aristocrat Lo Liner build http://67-72chevytrucks.com/vboard/s...84#post7561684  support our troops! |
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08-26-2015, 09:45 AM
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#4 |
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Always a work in progress
Join Date: Jun 2007
Location: Harker Heights, TX
Posts: 1,599
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Re: New exhaust time
1 3/4" or 1 7/8" header primaries?
Is there a header out there that somewhat fits 73-87 with dirty dingo slider mounts that doesn't cost $500+?
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USMC Retired Never trust a man who can't laugh at his own fart! 2010 Silverado Crew Cab 73 SWB 5.3/4l80e Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=695168 |
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08-26-2015, 04:00 PM
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#5 |
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Registered User
Join Date: Feb 2003
Location: Paragould, Ar
Posts: 571
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Re: New exhaust time
I have 1-7/8 DT headers, Full length 3 inch duals. They dump right below the rear bumper. Mufflers are 12" dynomax bullets. It has a H-pipe near the rear of the transmission.
I love it.
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1970 Gmc Grande Sierra Swb 2wd LSX (LQ4/4L80e) 1990 K1500 Daily 
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08-29-2015, 07:51 AM
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#6 | |
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Fabricate till you "puke"
Join Date: Jun 2002
Location: Ill
Posts: 9,402
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Re: New exhaust time
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69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears.... |
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