67-72 exhaust options? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

396ss · 08-01-2005, 05:56 PM

Looking for a true dual exhaust setup for my 69 c-10. Quickly checked out flowmaster / dynomax with no luck.

What are most people here using? Thanks.

LUV2XCLR8 · 08-01-2005, 06:18 PM

Kits - LMC I have heard, but I have heard there has been some fit issues also

Personally I went to a custom muffler shop for mine, It cost more of course

*Pic's of mine on the linky in my signature, pages 15-18 I think, Stainless Steel
mufflers on mine, 2.5" aluminized pipe, and NO it was not cheap, but worth it

1STtimePRo'71 · 08-01-2005, 08:21 PM

I also went to an exhaust shop and for $100 Bucks I got dual straights put on my 71. That included pipe, bends, and all the welds. I gotta say though my truck is way hella loud and It's almost too loud. I'm gonna put flowmasters on it this winter.

farside847 · 08-01-2005, 08:24 PM

I got duals put in at a shop to for about $350, including turbos.

shortbed70 · 08-01-2005, 08:51 PM

Heres mine on my 65 short bed done for about 125.00 with mufflers. and 225.00 with headers. 2 1/2" into 40 series flows under bed.

Fred T · 08-01-2005, 09:50 PM

Dynomax turbos on 2" aluminized pipe. Sounds great, but not too loud. $375 at local custom shop, lifetime warranty.

bowtie · 08-01-2005, 11:03 PM

Dynamax Turbos with 2 1/2 exhaust and 2 1/4 cross over pipe. Behind the axle we went with 3" exhaust (just for looks). With out the mufflers the shop charged me $220.

396ss · 08-02-2005, 12:25 PM

Thanks for the input - has anyone heard of / dealt with http://www.gmcpauls.com ?

Looks like they have a complete exhaust setup for the 67-72 trucks Here

bowtie · 08-02-2005, 02:50 PM

Quote:

Originally Posted by 396ss

Thanks for the input - has anyone heard of / dealt with http://www.gmcpauls.com ?

Looks like they have a complete exhaust setup for the 67-72 trucks Here

I've dealt with Paul, good guy and would definately reccomend.

67ChevyRedneck · 08-02-2005, 02:58 PM

I have the LMC kit on my truck with the turbos. Not too happy with it. The fit was very poor. Who knows, I may have installed it wrong, but my turbo's are crammed somewhat sideways between the driveshaft and trailing arms and my tailpipes are at an odd angle. The pipes also have about 1/2" clearance between the driveshaft and where the trailing arms come together at the crossmember. The pipes kept shifting and rubbing the driveshaft when I hit a bump. Finally got it tight enough so they stayed put. I tried many configurations with it on my garage floor, and the pipes only fit together the way I installed them. It works, but it ain't purty. The pipe off the manifolds fits well, but I think I'm gonna have a shop go in and redo it from the cab back with some flowmasters. Note: I think the kit would fit better with the glass pack kit (mufflers are smaller and round) or I think it would fit very well with a leaf spring rear-end. My $0.02.

MandarinSixSeven · 08-02-2005, 04:05 PM

I must say, I don't know much about kits, but if they work how they are supposed to they should be awesome. If it fits, installs easy and has the right exit angle/position you prefer, they seem like a good deal.

However, from experience it seems like for around the same price (around, being a loose term), you can go to a custom shop and get it done EXACTLY how you want. For example, I went in to a local shop, told the guy exactly where I want the bends, the welds, the clamps and he even gave me a piece of pipe so I could show him at what angle I wanted the exits.

Let me tell you, I was amazed, I was sort of expecting a little variation (nobody's perfect), but when I saw it, it was perfect, exactly how it looked in my head...all for $330 canadian too! it's

*FUNMUDDER* · 08-02-2005, 05:27 PM

Id like to buy a pre-bent kit with pipes that exit right underneath the rear bumper when i get a pick up, which will be never at the rate things are going.

A 2 1/2 or 3 inch exhaust would be good. I could probably get the bends, pipes, clamps and a Sawzall all and do it all in the garage, couldn't I? And then put stainless tips on each side straight out the back.

Thats just my taste of good looks kicking in

-Jake

al's71gmc · 08-02-2005, 09:55 PM

I don't know if these are any good...they have a bunch of them for sale
http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT
polished stainless 2.5"
what's inlet style or outlet style mean?

mrein3 · 08-02-2005, 10:19 PM

I bought the LMC kit for my long wheel base, sbc, 4x4. It fit like a glove. I put it on a good 4 or 5 years ago. I stuck a new engine in front of it last year. I'd buy another kit in a second from them.

*newin72* · 08-02-2005, 10:51 PM

there was a thread started about these guys the other day. DON'T do business with them! 88.3% feedback should be a STRONG indication!

Quote:

Originally Posted by al's71gmc

I don't know if these are any good...they have a bunch of them for sale
http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT
polished stainless 2.5"
what's inlet style or outlet style mean?

KOOLmike · 08-03-2005, 09:35 AM

Hmm, my '72 has dual Flowmasters on it...

special70gmc · 08-03-2005, 06:06 PM

hers mine 2.5 off the headers h-pipe then 40 flos and 3'' tails out the side

loud!!!!

4x4Poet · 08-04-2005, 04:42 AM

Since the search is down, I'll repeat what I've posted before. The kits LMC sells are made by http://www.heartthrobexhaustinc.com/ in Minn.

I haven't purchased one, so I can't speak the the fitment. Otherwise, three good reasons to use it:
1. You're running stock Rams Horn manifolds.
2. Mandrel bent pipes for unobstructed flow.
3. Low cost.

Drawback:
A. No H-pipe/X-pipe.
B. Poor mufflers (if purchased thru LMC).

I called Heartthrob and priced a dual kit, minus mufflers, for my '71 K10 burb: $136 + shipping. Compare with LMC. If you go direct to Heartthrob, be sure you get all the clamps and brackets as LMC sells the kits.

68C15 · 08-04-2005, 08:01 AM

and remember, the LMC or anyone else's kit, is for STOCK applications. it will not fit on a lowered chassis or if your engine is in anything but the stock location. I personally feel its bets to have a shop bend some pipes to fit & use whatever muffs you like.
having said that I have Heddman headers, 2 1/2s, 12" packs (she barks nicely), and exits behind the bumper. oh, did I mention how mine is run outside the frame behind the cab for suspension clearance?

Joe67 · 08-04-2005, 08:03 AM

Quote:

Originally Posted by 396ss

Looking for a true dual exhaust setup for my 69 c-10. Quickly checked out flowmaster / dynomax with no luck.

What are most people here using? Thanks.

The best bet is find a GOOD exhaust shop. They can often custom bend for your application for less then one of the kits you buy from the suppliers. Final fit is often much better as well.

**67sss** · 08-04-2005, 09:01 PM

don't know where po got this from, but i traded some electrical work for these, not the headers, just the pipes and clamps..ect

tomatocity · 08-04-2005, 09:32 PM

I am a believer that a rear leaf truck can use 73> exhaust but I have no proof.

bballmac42 · 08-07-2005, 10:41 PM

i personally did mine myself. Bought headers and put 2.5 inch straight into turbos and nuthing after, sounds nice. lot of work but a lot cheaper.

da-burb · 08-07-2005, 11:06 PM

I have used 2 kits from LMC. 350 / auto / 4x4 and it fit like a glove. I got the second system for my 67 250-6/3spd/2wd and it fit absolutely perfect! I wouldn't think twice on the third set up. If you happen to go to heartthrob you can also get the same systems in stainless. FYI..They just happen to be 30 miles west of my place.

4x4Poet · 08-08-2005, 05:13 AM

da-burb, you're that close to Heartthrob Exhaust and you've not purchased direct?

08-01-2005, 05:56 PM	#1
396ss Registered User Join Date: Jul 2005 Location: WI Posts: 3	67-72 exhaust options? Looking for a true dual exhaust setup for my 69 c-10. Quickly checked out flowmaster / dynomax with no luck. What are most people here using? Thanks.

08-01-2005, 06:18 PM	#2
LUV2XCLR8 The LuvShack Garage Join Date: Jan 2004 Location: Maple Grove, TN (West Side) Posts: 30,468	Kits - LMC I have heard, but I have heard there has been some fit issues also Personally I went to a custom muffler shop for mine, It cost more of course Pic's of mine on the linky in my signature, pages 15-18 I think, Stainless Steel mufflers on mine, 2.5" aluminized pipe, and NO it was not cheap, but worth it __________________ Owner/Op: "TN Classic Transport Carriers" The Toy: "Square Vette" 72 Hybrid Blazer Toy Barn: "LuvShack" 40 x 60 x 20 Shop Tow Piggy:"Maddy" 88 Silverado 3500 Hauler: "Feathers" 14 Aluma 8218T Last edited by LUV2XCLR8; 08-01-2005 at 09:08 PM.*

08-01-2005, 08:21 PM	#3
1STtimePRo'71 Registered User Join Date: Feb 2005 Location: Lake Crystal, MN Posts: 656	I also went to an exhaust shop and for $100 Bucks I got dual straights put on my 71. That included pipe, bends, and all the welds. I gotta say though my truck is way hella loud and It's almost too loud. I'm gonna put flowmasters on it this winter. __________________ -Cory 1967 2 Wheel Chevy

08-01-2005, 08:24 PM	#4
farside847 Registered User Join Date: Feb 2005 Location: Bay Area, California Posts: 995	I got duals put in at a shop to for about $350, including turbos. __________________ 1971 Chevy C10 Shortbed Stepside, 307v8 3-on-the-tree

08-01-2005, 08:51 PM	#5
shortbed70 Registered User Join Date: Mar 2002 Location: Forney TX Posts: 4,512	Heres mine on my 65 short bed done for about 125.00 with mufflers. and 225.00 with headers. 2 1/2" into 40 series flows under bed. Attached Images __________________ Troy 1965 Chevy Bagged,361 sbc,voodoo cam,1.5 full roller rockers,patriot 185cc vortec heads 2.02-1.60,vortec weiand polished intake,demon carb my truckhttp://67-72chevytrucks.com/vboard/s...d.php?t=332884 Big Red Dog build http://67-72chevytrucks.com/vboard/s...d.php?t=572274 Last edited by shortbed70; 08-01-2005 at 08:51 PM.

08-01-2005, 09:50 PM	#6
Fred T Cantankerous Geezer Join Date: Aug 2002 Location: Bel Aire, KS Posts: 6,264	Dynomax turbos on 2" aluminized pipe. Sounds great, but not too loud. $375 at local custom shop, lifetime warranty. __________________ Fred There is no such thing as too much cam...just not enough engine.

08-01-2005, 11:03 PM	#7
bowtie Senior Member Join Date: Dec 1999 Location: Saskatchewan Posts: 1,050	Dynamax Turbos with 2 1/2 exhaust and 2 1/4 cross over pipe. Behind the axle we went with 3" exhaust (just for looks). With out the mufflers the shop charged me $220. __________________ ~70 GMCprostreet swb 396/700r NOS 575 hp "the Brick" ~72 chev swb w/68 front clip "GM Millenium corvette yellow" I use and accept Paypal

08-02-2005, 12:25 PM	#8
396ss Registered User Join Date: Jul 2005 Location: WI Posts: 3	Thanks for the input - has anyone heard of / dealt with http://www.gmcpauls.com ? Looks like they have a complete exhaust setup for the 67-72 trucks Here __________________ 1969 C-10 Shortbox

08-02-2005, 02:58 PM	#10
67ChevyRedneck Hittin E-Z Street on Mud Tires Join Date: Nov 2004 Location: Greenville, SC Posts: 23,090	I have the LMC kit on my truck with the turbos. Not too happy with it. The fit was very poor. Who knows, I may have installed it wrong, but my turbo's are crammed somewhat sideways between the driveshaft and trailing arms and my tailpipes are at an odd angle. The pipes also have about 1/2" clearance between the driveshaft and where the trailing arms come together at the crossmember. The pipes kept shifting and rubbing the driveshaft when I hit a bump. Finally got it tight enough so they stayed put. I tried many configurations with it on my garage floor, and the pipes only fit together the way I installed them. It works, but it ain't purty. The pipe off the manifolds fits well, but I think I'm gonna have a shop go in and redo it from the cab back with some flowmasters. Note: I think the kit would fit better with the glass pack kit (mufflers are smaller and round) or I think it would fit very well with a leaf spring rear-end. My $0.02. __________________ Jesse James 1967 C10 SWB Stepside: 350/700R4/3.73 1965 Ford Mustang: 289/T5-5spd/3.25 Trac-Loc 1968 Pontiac Firebird: Project Fire Chicken! 2015 Silverado Double Cab 5.3L Z71 2001 Jeep Wrangler Sport 4.0L 5spd 2020 Chevrolet Equinox Premium 2.0L Turbo 2011 Mustang V6 ~ Wife's ride American Born, Country by the Grace of God 1967 CST Shop Truck Rebuild! My 1967 C-10 Build Thread My Vintage Air A/C Install Project "On a Dime" Trying my hand at Home Renovation! 1965 Mustang Modifications!

08-02-2005, 04:05 PM	#11
MandarinSixSeven Seasonal Poster Join Date: Apr 2002 Location: Kelowna BC Canada Posts: 896	I must say, I don't know much about kits, but if they work how they are supposed to they should be awesome. If it fits, installs easy and has the right exit angle/position you prefer, they seem like a good deal. However, from experience it seems like for around the same price (around, being a loose term), you can go to a custom shop and get it done EXACTLY how you want. For example, I went in to a local shop, told the guy exactly where I want the bends, the welds, the clamps and he even gave me a piece of pipe so I could show him at what angle I wanted the exits. Let me tell you, I was amazed, I was sort of expecting a little variation (nobody's perfect), but when I saw it, it was perfect, exactly how it looked in my head...all for $330 canadian too! it's __________________ 67 GMC Short Step 350/4-Speed/3.08 Posi Front/Rear Sway Bars Kelowna BC, Canada Member of DTPW

08-02-2005, 05:27 PM	#12
FUNMUDDER Account Suspended Join Date: Jun 2005 Location: Maine Posts: 427	Id like to buy a pre-bent kit with pipes that exit right underneath the rear bumper when i get a pick up, which will be never at the rate things are going. A 2 1/2 or 3 inch exhaust would be good. I could probably get the bends, pipes, clamps and a Sawzall all and do it all in the garage, couldn't I? And then put stainless tips on each side straight out the back. Thats just my taste of good looks kicking in -Jake

08-02-2005, 09:55 PM	#13
al's71gmc 4 eyed fever Join Date: Jul 2005 Location: Eureka, Nevada Posts: 500	I don't know if these are any good...they have a bunch of them for sale http://cgi.ebay.com/ebaymotors/ws/eB...e=STRK:MEWA:IT polished stainless 2.5" what's inlet style or outlet style mean? __________________ 1971 GMC 2500 4x4 1972 GMC Sierra Grande 1/2 t 4x4-#1 son's truck. Recently completed resto. 4 YO daughter," Daddy, I like your truck better than Mom's." (2000 F350-ranch truck) Smart kid!!

08-02-2005, 10:19 PM	#14
mrein3 Registered User Join Date: Feb 2000 Location: Center City, MN, USA Posts: 3,254	I bought the LMC kit for my long wheel base, sbc, 4x4. It fit like a glove. I put it on a good 4 or 5 years ago. I stuck a new engine in front of it last year. I'd buy another kit in a second from them. __________________ '70 cab, '71 chassis, 383, TH350, NP205. '71 Malibu convertible '72 Malibu hard top Center City, MN

08-03-2005, 09:35 AM	#16
KOOLmike Registered User Join Date: Jul 2005 Location: Methdependence, MO Posts: 30	Hmm, my '72 has dual Flowmasters on it... __________________ 1972 Chevy SWB 4x4

08-03-2005, 06:06 PM	#17
special70gmc Registered User Join Date: Sep 2002 Location: long island, new york Posts: 1,333	hers mine 2.5 off the headers h-pipe then 40 flos and 3'' tails out the side loud!!!! Attached Images __________________ 1986 c-10 swb 5/7 drop 20'' coys 1958 belair 2door



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08-04-2005, 04:42 AM	#18
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	Since the search is down, I'll repeat what I've posted before. The kits LMC sells are made by http://www.heartthrobexhaustinc.com/ in Minn. I haven't purchased one, so I can't speak the the fitment. Otherwise, three good reasons to use it: 1. You're running stock Rams Horn manifolds. 2. Mandrel bent pipes for unobstructed flow. 3. Low cost. Drawback: A. No H-pipe/X-pipe. B. Poor mufflers (if purchased thru LMC). I called Heartthrob and priced a dual kit, minus mufflers, for my '71 K10 burb: $136 + shipping. Compare with LMC. If you go direct to Heartthrob, be sure you get all the clamps and brackets as LMC sells the kits. __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

08-04-2005, 08:01 AM	#19
68C15 blood type; Retumbo Join Date: Jan 2004 Location: next to my reloading bench Posts: 10,269	and remember, the LMC or anyone else's kit, is for STOCK applications. it will not fit on a lowered chassis or if your engine is in anything but the stock location. I personally feel its bets to have a shop bend some pipes to fit & use whatever muffs you like. having said that I have Heddman headers, 2 1/2s, 12" packs (she barks nicely), and exits behind the bumper. oh, did I mention how mine is run outside the frame behind the cab for suspension clearance? Attached Images __________________ Man rule #77...if you own a 67 stepside with a caddy 472 you will never be in danger of loosing you man card

08-04-2005, 09:01 PM	#21
67sss Registered User Join Date: Nov 2002 Location: Mt. Vernon, WA.. Posts: 2,325	exhaust don't know where po got this from, but i traded some electrical work for these, not the headers, just the pipes and clamps..ect Attached Images

08-04-2005, 09:32 PM	#22
tomatocity Registered User Join Date: Jun 2005 Location: Sacramento CA Posts: 1,255	I am a believer that a rear leaf truck can use 73> exhaust but I have no proof. __________________ Got bored, sold everthing. Got bored, looking for a 1960-66 C-10. Want to build my last truck.

08-07-2005, 10:41 PM	#23
bballmac42 Registered User Join Date: Aug 2005 Location: Wisconsin Posts: 60	i personally did mine myself. Bought headers and put 2.5 inch straight into turbos and nuthing after, sounds nice. lot of work but a lot cheaper.

08-07-2005, 11:06 PM	#24
da-burb "Ochre Ogre" Join Date: Apr 2000 Location: Springfield, MN Posts: 3,558	I have used 2 kits from LMC. 350 / auto / 4x4 and it fit like a glove. I got the second system for my 67 250-6/3spd/2wd and it fit absolutely perfect! I wouldn't think twice on the third set up. If you happen to go to heartthrob you can also get the same systems in stainless. FYI..They just happen to be 30 miles west of my place. __________________ Bowtie Truck Stop Inc. Mid-West GM Truck Restoration Parts Supplier Your Key Parts, Auto Metal Direct, Dynacorn, and Goodmark dealer. like us @ www.facebook.com/BowtieTruckStop 1971 C-10 Suburban (Ochre) 1971 K-10 Suburban (Ochre) 1972 C-10 Suburban (Ochre) 1972 K-20 Suburban (Yellow- that just aint right!) Springfield, Minnesota 56087

08-08-2005, 05:13 AM	#25
4x4Poet Registered User Join Date: Nov 2004 Location: "Under Montana skies." Posts: 1,836	da-burb, you're that close to Heartthrob Exhaust and you've not purchased direct? __________________ '71 GMC K20 Suburban, '71 GMC K10 Suburban, '72 Chevy C10 CST Suburban, '72 Chevy K20 clunker pickup.

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