73-87 exhaust on a 67-72 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**70STOVEBOLT** · 04-10-2017, 05:58 PM

I have searched but I cannot find an answer to the question: Will a 73-87 exhaust system fit a 67-72? I need a 2.5" system for my '70 SWB but I do not have $500 plus for a system. Local exhaust shops want that for a non-mandrel-bent system. I know I do not NEED mandrel-bent pipes but that is what I want. If anyone has installed the later kit please post!

TIA,
Mark

Mike C · 04-10-2017, 06:35 PM

If you have a leaf spring truck you can probably make it work. If you have coils then nope.

**70STOVEBOLT** · 04-10-2017, 06:41 PM

I have coils...

Mike C · 04-10-2017, 07:02 PM

And that is why so many of these coil spring trucks have cheap headers, short pipes and glasspacks with turn downs.

I have a leaf truck and am doing a big block swap using Corvette manifolds. It is going to require a custom exhaust that I will run through the trailing arm crossmemeber. And with me providing mufflers will run about $600. Ouch. But not a lot of choice.

**70STOVEBOLT** · 04-10-2017, 07:14 PM

firedemon I will be running 2.5" pipes. The LMC kit is 2.25.

**70STOVEBOLT** · 04-10-2017, 07:18 PM

Mike C I will be running mine through the TA xmember also. I also am running a big block. I was going to get the Pypes kit but the outlets on the x-pipe are only 13.5 inches apart and that is too close to run it through the xmember.

04-10-2017, 05:58 PM	#1
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,249	73-87 exhaust on a 67-72 I have searched but I cannot find an answer to the question: Will a 73-87 exhaust system fit a 67-72? I need a 2.5" system for my '70 SWB but I do not have $500 plus for a system. Local exhaust shops want that for a non-mandrel-bent system. I know I do not NEED mandrel-bent pipes but that is what I want. If anyone has installed the later kit please post! TIA, Mark __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear

04-10-2017, 06:35 PM	#2
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,714	Re: 73-87 exhaust on a 67-72 If you have a leaf spring truck you can probably make it work. If you have coils then nope. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

04-10-2017, 06:41 PM	#3
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,249	Re: 73-87 exhaust on a 67-72 I have coils... __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear

04-10-2017, 07:02 PM	#4
Mike C Registered User Join Date: Dec 1999 Location: Austin, TX, USA Posts: 7,714	Re: 73-87 exhaust on a 67-72 And that is why so many of these coil spring trucks have cheap headers, short pipes and glasspacks with turn downs. I have a leaf truck and am doing a big block swap using Corvette manifolds. It is going to require a custom exhaust that I will run through the trailing arm crossmemeber. And with me providing mufflers will run about $600. Ouch. But not a lot of choice. __________________ 44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax

04-10-2017, 07:14 PM	#5
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,249	Re: 73-87 exhaust on a 67-72 firedemon I will be running 2.5" pipes. The LMC kit is 2.25. __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear

04-10-2017, 07:18 PM	#6
70STOVEBOLT Senior Member Join Date: Jun 2005 Location: Winona Lake, IN Posts: 6,249	Re: 73-87 exhaust on a 67-72 Mike C I will be running mine through the TA xmember also. I also am running a big block. I was going to get the Pypes kit but the outlets on the x-pipe are only 13.5 inches apart and that is too close to run it through the xmember. __________________ 70 C/10 SWB 402/TH400/3.73 "The Needy Beast" 200,000 Mile Club Disc Brake Club Owner installed options: Front Sway Bar Power Steering Power Brakes Cigar Lighter Courtesy Lights Deluxe Side Markers Wiper Delay Power windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear



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