1971 C20 custom camper longhorn had original dual exhaust? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**special-K** · 01-13-2012, 09:12 AM

Yes,"any" 10-30 truck equipped with a big block had dual exhaust. There will be frame brackets and heat shields for both sides. No small block equipped trucks came with dual exhaust.

**RenoKeene** · 01-13-2012, 01:12 PM

I concur with Tim, my factory BB had 2-1/2" duals and my SB Custom Camper had single exhausts.

dads longhorn · 01-16-2012, 02:25 PM

Thanks for the great input folks. Is a 350 V8 a big block? Yes, I know nothing about this truck and am still in the process of learning, it's ok to chuckle at me. The weather hasn't cooperated lately and i haven't been able to crawl under the truck to look for brackets holding the exhaust or heat shields (where are theHS located). The engine was rebuilt/replaced and the numbers on the block are V0319TYZ, so it's a 1975 (not 1971 like the rest of the truck), 350. I know it's still a V8 though.

Can the hole in the pipe be plugged or should i get new pipes put on. I'm thinking new pipes since the current ones will probable rust out again in the near future and makes a bad noise (i like the sound of the mufflers now).

Thanks again

01-13-2012, 09:12 AM	#1
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,851	Re: 1971 C20 custom camper longhorn had original dual exhaust? Yes,"any" 10-30 truck equipped with a big block had dual exhaust. There will be frame brackets and heat shields for both sides. No small block equipped trucks came with dual exhaust. __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-13-2012, 01:12 PM	#2
RenoKeene Florida Edition Join Date: Oct 2010 Location: Fruitland Park, FL Posts: 4,043	Re: 1971 C20 custom camper longhorn had original dual exhaust? I concur with Tim, my factory BB had 2-1/2" duals and my SB Custom Camper had single exhausts. __________________ 70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394

01-16-2012, 02:25 PM	#3
dads longhorn Registered User Join Date: Mar 2010 Location: New mexico Posts: 370	Re: 1971 C20 custom camper longhorn had original dual exhaust? Thanks for the great input folks. Is a 350 V8 a big block? Yes, I know nothing about this truck and am still in the process of learning, it's ok to chuckle at me. The weather hasn't cooperated lately and i haven't been able to crawl under the truck to look for brackets holding the exhaust or heat shields (where are theHS located). The engine was rebuilt/replaced and the numbers on the block are V0319TYZ, so it's a 1975 (not 1971 like the rest of the truck), 350. I know it's still a V8 though. Can the hole in the pipe be plugged or should i get new pipes put on. I'm thinking new pipes since the current ones will probable rust out again in the near future and makes a bad noise (i like the sound of the mufflers now). Thanks again

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