Doug Thorley THY-324Y-C LS swap headers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

CJM72 · 11-20-2018, 10:09 AM

Brand new set of Doug Thorley THY-324Y-C LS swap headers for 2wd and 4wd 67-72 GM Trucks (C10, K10, K5, etc.). Bought and mounted on my K5 but went in a different direction, so my loss is your gain. They have been mounted per the pictures, but are absolutely brand new. Bolted in nicely, but were almost touch my firewall. Didn't want to move my engine and trans of dent my firewall at this point. Fit great, but my motor mounts are just slightly too high. These cost $650 new. I'm asking $450 plus shipping. Still have all hardware, gaskets, collectors, and instructions.
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THY-324Y-C Headers:
- Made in the USA with limited lifetime warranty
- Extra thick 14GA tubing and 3/8 inch thick flanges
- 1 5/8" primaries with 3" collectors with 2.5" adapters
- Ceramic coated inside and out
- Kit includes all required gaskets and/or installation hardware
https://www.summitracing.com/parts/dte-324y-c

knomadd · 11-21-2018, 11:04 AM

Man, this is an awesome deal! I love mine in my 71! They fit and look really good. Good luck with your sale.

CJM72 · 11-21-2018, 11:30 AM

Quote:

Originally Posted by knomadd

Man, this is an awesome deal! I love mine in my 71! They fit and look really good. Good luck with your sale.

They are awesome! Quality is great and they look killer. I'd make them fit, but I have so many other loose ends to focus on with my swap, that I just threw on the ls3 manifolds I had in my garage. If they don't sell by the time I have this running, I may try to make them work again.

**Blazerowner** · 11-23-2018, 12:26 AM

What is the crossmember you used for the swap? What transmission? Do you have any pics of the passenger side?

CJM72 · 11-23-2018, 08:04 AM

I used a Dirty Dingo 4x4 crossmember. I have a 6.0 with a 4l65e mated to the stock np205 location with the advanced adapters kit.
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**Blazerowner** · 11-24-2018, 03:44 AM

So the issue was the firewall being close? Can I get a shipping quote to 95982?

CJM72 · 11-24-2018, 10:05 PM

Quote:

Originally Posted by Blazerowner

So the issue was the firewall being close? Can I get a shipping quote to 95982?

I'm getting estimates of over $100 right now. I have to figure out why it's so high. The box would be pretty big, but this doesn't seem right.

CJM72 · 11-24-2018, 10:11 PM

Best estimate is $80 for shipping. Let me know if you are interested. Thanks

**Blazerowner** · 11-25-2018, 04:53 AM

Thanks but I’ll have to pass at that price, good luck with the sale.

CJM72 · 11-25-2018, 11:16 AM

Headers have been sold locally.

11-20-2018, 10:09 AM	#1
CJM72 Registered User Join Date: Aug 2015 Location: Raynham, MA Posts: 222	Doug Thorley THY-324Y-C LS swap headers Brand new set of Doug Thorley THY-324Y-C LS swap headers for 2wd and 4wd 67-72 GM Trucks (C10, K10, K5, etc.). Bought and mounted on my K5 but went in a different direction, so my loss is your gain. They have been mounted per the pictures, but are absolutely brand new. Bolted in nicely, but were almost touch my firewall. Didn't want to move my engine and trans of dent my firewall at this point. Fit great, but my motor mounts are just slightly too high. These cost $650 new. I'm asking $450 plus shipping. Still have all hardware, gaskets, collectors, and instructions. THY-324Y-C Headers: - Made in the USA with limited lifetime warranty - Extra thick 14GA tubing and 3/8 inch thick flanges - 1 5/8" primaries with 3" collectors with 2.5" adapters - Ceramic coated inside and out - Kit includes all required gaskets and/or installation hardware https://www.summitracing.com/parts/dte-324y-c __________________ My LS Swap: http://67-72chevytrucks.com/vboard/s...d.php?t=718573

11-21-2018, 11:04 AM	#2
knomadd Registered User Join Date: Jul 2012 Location: Rosenberg, Texas Posts: 3,506	Re: Doug Thorley THY-324Y-C LS swap headers Man, this is an awesome deal! I love mine in my 71! They fit and look really good. Good luck with your sale. __________________ -Duane C/10 Club Texas member 1971 Chevy C10 "Brutus" SWB Fleetside 2016 6.0L (L96) 6L90E (driver/project) 1965 Pontiac GTO "Royal Goat" 400/TH400 w/AC (my baby)

11-23-2018, 12:26 AM	#4
Blazerowner Senior Member Join Date: Apr 2006 Location: Yuba City, Ca Posts: 1,953	Re: Doug Thorley THY-324Y-C LS swap headers What is the crossmember you used for the swap? What transmission? Do you have any pics of the passenger side? __________________ Kirk 72 Blazer CST 4wd highlander

11-23-2018, 08:04 AM	#5
CJM72 Registered User Join Date: Aug 2015 Location: Raynham, MA Posts: 222	Re: Doug Thorley THY-324Y-C LS swap headers I used a Dirty Dingo 4x4 crossmember. I have a 6.0 with a 4l65e mated to the stock np205 location with the advanced adapters kit. __________________ My LS Swap: http://67-72chevytrucks.com/vboard/s...d.php?t=718573

11-24-2018, 03:44 AM	#6
Blazerowner Senior Member Join Date: Apr 2006 Location: Yuba City, Ca Posts: 1,953	Re: Doug Thorley THY-324Y-C LS swap headers So the issue was the firewall being close? Can I get a shipping quote to 95982? __________________ Kirk 72 Blazer CST 4wd highlander

11-24-2018, 10:11 PM	#8
CJM72 Registered User Join Date: Aug 2015 Location: Raynham, MA Posts: 222	Re: Doug Thorley THY-324Y-C LS swap headers Best estimate is $80 for shipping. Let me know if you are interested. Thanks __________________ My LS Swap: http://67-72chevytrucks.com/vboard/s...d.php?t=718573

11-25-2018, 04:53 AM	#9
Blazerowner Senior Member Join Date: Apr 2006 Location: Yuba City, Ca Posts: 1,953	Re: Doug Thorley THY-324Y-C LS swap headers Thanks but I’ll have to pass at that price, good luck with the sale. __________________ Kirk 72 Blazer CST 4wd highlander

11-25-2018, 11:16 AM	#10
CJM72 Registered User Join Date: Aug 2015 Location: Raynham, MA Posts: 222	Re: Doug Thorley THY-324Y-C LS swap headers Headers have been sold locally. __________________ My LS Swap: http://67-72chevytrucks.com/vboard/s...d.php?t=718573

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