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03-17-2004, 02:26 AM
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#1 |
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Collector of rusty Items
Join Date: Dec 2001
Location: Sisters,Oregon USA
Posts: 731
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Exhaust manifolds
I bought a new set of Exhaust manifolds a few years back and finally went to put them on. I am putting an engine in my project truck and the parts truck has turned out to be just crap everywhere.
My new manifolds turn back at a 45 degree angle and the old ones went straight down. Which is correct for a 4x4, or does it matter? My guess would be the old ones came out of a station wagon or something just as foul. Thanks in advance.
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Scrub Sisters, Oregon - Home of the Sisters Rodeo. 70 GMC 1,000,000 + miles 72 K-20 project, 456 Dana60 front, Corp14 rear w/locker, 265R19.5 tires 20-ply. Warn 12k winches both ends, Cross-over steering with raised tie-rod, Powerbox steering, 4500 watt 120-AC power, Air, Hydraulic aux power, 4 inch lift, 5000 lb air-bags both ends. |
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03-17-2004, 03:07 AM
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#2 |
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Firefighter
Join Date: Feb 2001
Location: Yellville, Ar, USA
Posts: 1,943
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I'm not sure because I have seen both on 4x4's
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'72 Chevy SWB 350 Auto '67 GMC LWB 350 4 speed '70 Chevy 4x4 Stepside 350 Auto Yellville, Ar. USA  
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03-17-2004, 03:23 AM
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#3 |
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Registered User
Join Date: Feb 2003
Location: The Rubber City
Posts: 5,498
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im pretty sure that 4x4's used the straight down ramhorns. i would go check for you, but my truck is buried under 8" of snow that we got in the surprise storm last night! brr
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1969 GMC K2500  1996 Honda Accord 2007 Kawasaki KLR 650 |
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03-17-2004, 06:52 AM
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#4 |
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user # 2756
 
Join Date: Jun 2001
Location: Chesapeake, Virginia
Posts: 4,612
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Straight down on the 4x4s. But it did change sometime in the mid 70s to 80s as my 85 K5 had one straight down and one back at a 45 degree angle w/ a heat riser valve.
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1970 K25, 8' stepside bed 350/465/205 44 up front, 60 in the rear 4.10s rolling on 33" Dunlop MTs 1986 K5, 350/465/208 Dana 60/14 bolt from a cucv 36" Super Swampers TSL/SX 1983 K20 w/ CUCV axles, 350/700R4/208 sitting on 37" Goodyears 1986 M1031 6.2 diesel, TH400/NP205 locker in the rear and a LS in the front, all stock for now..... 1986 K30, 350/400/205 dana 60 and 14 bolt. I kept the drivetrain. Body/bad and chassis are gone. 1981 K30, 350/465/205 dana 60 and dually 14 bolt. Has a G80, and a flat bed. Going to replace the flat bed. 1985 K20, 350/400/208 10 bolt and SF 14 bolt. I wonder where I can find some 1 tons. Hmmmmm 
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03-17-2004, 11:31 AM
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#5 |
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Pesemistic Optimist
Join Date: Dec 2002
Location: Prineville, Oregon
Posts: 227
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Hey Scrub, if they're going on your 72 K20 they both dump straight down.
Dan.
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1972 K20 Cheyenne Super Custom Camper- 4" lift & 35's, built TH350 and 355. Daily driver resto in progress. 1999 Yukon Denali- Wife's ride, hands off. |
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