1950 AD LS Swap Exhaust - The 1947 - Present Chevrolet & GMC Truck Message Board Network

LSpwr50 · 08-17-2016, 08:45 AM

I'm in the parts collecting stage of my 5.3 swap for my 1950 AD. I'm looking for exhaust manifolds and from what I've read so far, C5 manifolds seem to be the best fit in the AD chassis. Is that what most of you guys are using? Anyone found something that fits better? Pictures are always good!

Thanks

**jweb** · 08-17-2016, 12:49 PM

Seems like there are a few that fit, but it can be difficult to route the steering.

I have seen a few people use these: http://www.ebay.com/itm/LS1-LS2-LS3-...FWOpM3&vxp=mtr

Or these: https://www.summitracing.com/parts/hok-8501hkr

LSpwr50 · 08-17-2016, 01:21 PM

Quote:

Originally Posted by jweb

Seems like there are a few that fit, but it can be difficult to route the steering.

I have seen a few people use these: http://www.ebay.com/itm/LS1-LS2-LS3-...FWOpM3&vxp=mtr

Or these: https://www.summitracing.com/parts/hok-8501hkr

Thanks for the info, the Hooker manifolds look nice and seem very similar to Camaro LS3 manifolds.

e015475 · 08-17-2016, 06:55 PM

FWIW-

I tried the shorty late Camaro headers - there's a little interference at the flange and the frame rail, maybe about a quarter of an inch. The discharge flange is a nasty looking thing. Might have worked to cut the flange off and put in a downtube if you could buy them uncoated. I tried Camaro and GTO long tubes too and couldn't get enough clearance to the frame rails, Oh, and I wanted to use the stock pedals, and they hit the Camaro headers.

The Corvette manifolds are stainless but they're double walled, and it makes it a bit of a PITA to cut the flange off and weld another one on. I have a pair with one of the flanges cut off if anyone wants them, PM me.

If I had it to do over again, I'd be looking at those Hooker cast manifolds, the Sanderson headers, or SS Trailblazer manifolds.

I made some for my '49. It was expensive and a huge time-suck.

**dec010974** · 08-18-2016, 12:42 PM

Sorry to be off the subject, but hey e015475, what transmission are you using? I want a T56 but its kinda pricey. I'm looking for an alternative.

LSpwr50 · 08-18-2016, 01:43 PM

Quote:

Originally Posted by e015475

FWIW-

I tried the shorty late Camaro headers - there's a little interference at the flange and the frame rail, maybe about a quarter of an inch. The discharge flange is a nasty looking thing. Might have worked to cut the flange off and put in a downtube if you could buy them uncoated. I tried Camaro and GTO long tubes too and couldn't get enough clearance to the frame rails, Oh, and I wanted to use the stock pedals, and they hit the Camaro headers.

The Corvette manifolds are stainless but they're double walled, and it makes it a bit of a PITA to cut the flange off and weld another one on. I have a pair with one of the flanges cut off if anyone wants them, PM me.

If I had it to do over again, I'd be looking at those Hooker cast manifolds, the Sanderson headers, or SS Trailblazer manifolds.

I made some for my '49. It was expensive and a huge time-suck.

Thanks for the help guess I might give TBSS a try. Those headers look killer!

Quote:

Originally Posted by dec010974

Sorry to be off the subject, but hey e015475, what transmission are you using? I want a T56 but its kinda pricey. I'm looking for an alternative.

I know you didn't ask me but I'm in the same boat and didn't want to pay for a T56. I'm going with a NV3500, got mine from a 2000 Silverado 4.3, much cheaper than a T56!

e015475 · 08-18-2016, 09:14 PM

It is a world class T5 out of an early 90's V8 Camaro. The tailshaft housing was replaced with one from an S10 to move the shifter forward in my truck cab. I plan on upgrading to a TKO 500 or 600 when I get the money - this transmission is at its limit with the 5.3L V8

The bellhousing is a reproduction GM 621. Flywheel is a cheap Sachs 1075 for the manual transmission LS truck motors. LS2 pilot bushing and a BB Chevy clutch with the 28 spline disk

I'd considered the NV3500 but didn't like the splits in the ratios. If I don't abuse it too bad, this T5 should last for a while and I can use all the clutch and bellhousing when I get a few nickles to rub together for a TKO.

Root2812 · 08-20-2016, 12:04 AM

I have my LS in my 1950 and during mock up I had LS6 manifolds fitting with very little clearance. When I did my final install they no longer fit. It was close before so I don't know what changed. I am going to go with the Hooker manifolds next.

LSpwr50 · 08-20-2016, 05:10 PM

Quote:

Originally Posted by Root2812

I have my LS in my 1950 and during mock up I had LS6 manifolds fitting with very little clearance. When I did my final install they no longer fit. It was close before so I don't know what changed. I am going to go with the Hooker manifolds next.

Good to know, I picked up my 5.3 today!

Let me know how the Hookers work out.

Henney · 08-22-2016, 04:39 PM

Sanderson's fit for me.
http://67-72chevytrucks.com/vboard/s...=646646&page=2

earl1951 · 08-23-2016, 01:26 AM

yes, the corvette manifolds fit great with Mustang II suspension, the double wall welded ones,bat wing oil pan too.

Angryman117 · 08-30-2016, 09:19 PM

The C5 manifolds on my swap are a tight fit but they do fit. I am also running part of the C5 exhaust system but modified it a little bit.

08-17-2016, 08:45 AM	#1
LSpwr50 Registered User Join Date: Aug 2016 Location: Ballwin Posts: 6	1950 AD LS Swap Exhaust I'm in the parts collecting stage of my 5.3 swap for my 1950 AD. I'm looking for exhaust manifolds and from what I've read so far, C5 manifolds seem to be the best fit in the AD chassis. Is that what most of you guys are using? Anyone found something that fits better? Pictures are always good! Thanks

08-17-2016, 12:49 PM	#2
jweb Senior Member Join Date: Apr 2010 Location: Oregon Posts: 1,215	Re: 1950 AD LS Swap Exhaust Seems like there are a few that fit, but it can be difficult to route the steering. I have seen a few people use these: http://www.ebay.com/itm/LS1-LS2-LS3-...FWOpM3&vxp=mtr Or these: https://www.summitracing.com/parts/hok-8501hkr

08-17-2016, 06:55 PM	#4
e015475 Registered User Join Date: Nov 2013 Location: Show Low, Arizona Posts: 782	Re: 1950 AD LS Swap Exhaust FWIW- I tried the shorty late Camaro headers - there's a little interference at the flange and the frame rail, maybe about a quarter of an inch. The discharge flange is a nasty looking thing. Might have worked to cut the flange off and put in a downtube if you could buy them uncoated. I tried Camaro and GTO long tubes too and couldn't get enough clearance to the frame rails, Oh, and I wanted to use the stock pedals, and they hit the Camaro headers. The Corvette manifolds are stainless but they're double walled, and it makes it a bit of a PITA to cut the flange off and weld another one on. I have a pair with one of the flanges cut off if anyone wants them, PM me. If I had it to do over again, I'd be looking at those Hooker cast manifolds, the Sanderson headers, or SS Trailblazer manifolds. I made some for my '49. It was expensive and a huge time-suck.

08-18-2016, 12:42 PM	#5
dec010974 Senior Member Join Date: Oct 2012 Location: Miami, Florida Posts: 962	Re: 1950 AD LS Swap Exhaust Sorry to be off the subject, but hey e015475, what transmission are you using? I want a T56 but its kinda pricey. I'm looking for an alternative.

08-18-2016, 09:14 PM	#7
e015475 Registered User Join Date: Nov 2013 Location: Show Low, Arizona Posts: 782	Re: 1950 AD LS Swap Exhaust It is a world class T5 out of an early 90's V8 Camaro. The tailshaft housing was replaced with one from an S10 to move the shifter forward in my truck cab. I plan on upgrading to a TKO 500 or 600 when I get the money - this transmission is at its limit with the 5.3L V8 The bellhousing is a reproduction GM 621. Flywheel is a cheap Sachs 1075 for the manual transmission LS truck motors. LS2 pilot bushing and a BB Chevy clutch with the 28 spline disk I'd considered the NV3500 but didn't like the splits in the ratios. If I don't abuse it too bad, this T5 should last for a while and I can use all the clutch and bellhousing when I get a few nickles to rub together for a TKO.

08-20-2016, 12:04 AM	#8
Root2812 Registered User Join Date: Aug 2011 Location: Barnum, Mn Posts: 795	Re: 1950 AD LS Swap Exhaust I have my LS in my 1950 and during mock up I had LS6 manifolds fitting with very little clearance. When I did my final install they no longer fit. It was close before so I don't know what changed. I am going to go with the Hooker manifolds next. __________________ My 1950 Chevy build

08-22-2016, 04:39 PM	#10
Henney Registered User Join Date: Sep 2014 Location: Portland, OR Posts: 133	Re: 1950 AD LS Swap Exhaust Sanderson's fit for me. http://67-72chevytrucks.com/vboard/s...=646646&page=2 __________________ Simple '49 http://67-72chevytrucks.com/vboard/s...d.php?t=646646

08-23-2016, 01:26 AM	#11
earl1951 Registered User Join Date: Apr 2014 Location: Visalia, CA Posts: 17	Re: 1950 AD LS Swap Exhaust yes, the corvette manifolds fit great with Mustang II suspension, the double wall welded ones,bat wing oil pan too. Last edited by earl1951; 08-23-2016 at 01:31 AM. Reason: adding more info

08-30-2016, 09:19 PM	#12
Angryman117 Registered User Join Date: Jul 2013 Location: VAFB, CA Posts: 227	Re: 1950 AD LS Swap Exhaust The C5 manifolds on my swap are a tight fit but they do fit. I am also running part of the C5 exhaust system but modified it a little bit. __________________ Angryman117's 47 Chevy Build 89 Silverado Z71 LS Swap (sold)



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