? about Thorley BBC headers - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**clay68c10** · 02-13-2009, 11:54 PM

Is anyone running the 73+ BBC tri-y headers on a 67-72? They don't show a part # for us but the frames are pretty similar.... I'm thinking about getting some but wanted to see if anyone has done it.

**clay68c10** · 02-14-2009, 11:54 AM

Anyone??
Maybe I'll be the first.

green724x4 · 02-14-2009, 03:35 PM

I am running tri-ys on my 72' 1/2ton 4x4, they are for the 73' 3/4ton 4x4. There high quaility parts and I got the chromed ones I bought them from summit for $369. Only mod to the headers is the pass. side header has a bend welded in it. I cut the weld and the pipe straightend itself out. I rewelded the pipe .
I would highly recomend the product.

**clay68c10** · 02-14-2009, 08:13 PM

Thanks.
Anyone else?

spinning wheels · 02-15-2009, 02:14 AM

There are Doug Thorleys and there are Thorleys. Oh yeah, and then there are Doug's.
Doug Thorleys were made way back when. Thorleys are a Summit Racing brand. They bought the name from Doug's ex wife, she got the most of the stuff in the divorce. Doug's, are Doug Thorleys new brand name. At least that was the story I got a few years back.
Check around, one of the three might make a set. I bought a set of used ones for my SBC truck for $20 at a swapmeet. Same guy had a set for a BBC, he was asking $100.

Hope this info helps, Good Luck.

Livrat · 02-15-2009, 11:03 AM

I have had a set of 73 - 87 "Doug's...Doug Thorleys" tri-y's on my 68 4x4 for almost 20 years.. If I remember correctly the part number was "304Y" .. they fit great are still going strong.. I would highly recomend using "dougs".. to anyone who is contimplating tri-ys... not sure about the "Thorley" brand..as I have never had any experience with them..

**clay68c10** · 02-15-2009, 07:39 PM

Thanks guys. I'm looking at the Doug Thorley brand, one of their guys had a discount going for the board. Maybe it's still going.
It looks like the 303Y would be the choice for me.

02-13-2009, 11:54 PM	#1
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,995	? about Thorley BBC headers Is anyone running the 73+ BBC tri-y headers on a 67-72? They don't show a part # for us but the frames are pretty similar.... I'm thinking about getting some but wanted to see if anyone has done it. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

02-14-2009, 11:54 AM	#2
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,995	Re: ? about Thorley BBC headers Anyone?? Maybe I'll be the first. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

02-14-2009, 03:35 PM	#3
green724x4 Registered User Join Date: Feb 2007 Location: MI Posts: 214	Re: ? about Thorley BBC headers I am running tri-ys on my 72' 1/2ton 4x4, they are for the 73' 3/4ton 4x4. There high quaility parts and I got the chromed ones I bought them from summit for $369. Only mod to the headers is the pass. side header has a bend welded in it. I cut the weld and the pipe straightend itself out. I rewelded the pipe . I would highly recomend the product.

02-14-2009, 08:13 PM	#4
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,995	Re: ? about Thorley BBC headers Thanks. Anyone else? __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ

02-15-2009, 02:14 AM	#5
spinning wheels Registered User Join Date: Sep 2001 Location: Hacienda Heights, California USA Posts: 474	Re: ? about Thorley BBC headers There are Doug Thorleys and there are Thorleys. Oh yeah, and then there are Doug's. Doug Thorleys were made way back when. Thorleys are a Summit Racing brand. They bought the name from Doug's ex wife, she got the most of the stuff in the divorce. Doug's, are Doug Thorleys new brand name. At least that was the story I got a few years back. Check around, one of the three might make a set. I bought a set of used ones for my SBC truck for $20 at a swapmeet. Same guy had a set for a BBC, he was asking $100. Hope this info helps, Good Luck. __________________ '72 GMC custom camper 350/350

02-15-2009, 11:03 AM	#6
Livrat Member #1049 Join Date: Jun 2000 Location: Troy Montana Posts: 3,940	Re: ? about Thorley BBC headers I have had a set of 73 - 87 "Doug's...Doug Thorleys" tri-y's on my 68 4x4 for almost 20 years.. If I remember correctly the part number was "304Y" .. they fit great are still going strong.. I would highly recomend using "dougs".. to anyone who is contimplating tri-ys... not sure about the "Thorley" brand..as I have never had any experience with them..

02-15-2009, 07:39 PM	#7
clay68c10 Senior Member Join Date: Aug 2004 Location: Centennial, CO Posts: 2,995	Re: ? about Thorley BBC headers Thanks guys. I'm looking at the Doug Thorley brand, one of their guys had a discount going for the board. Maybe it's still going. It looks like the 303Y would be the choice for me. __________________ ClusterTruck: 68 C10 Bought in 89, wrecked in 03. Slow low $ rebuild started '17. 6.0 & TKO http://67-72chevytrucks.com/vboard/s...d.php?t=788602 93 K1500 Short Step, 350, NV4500, EBL flash ECU. Vortec heads & roller cam someday... 05 Jeep Wrangler Unlimited. 3” lift & 6-speed 02 E320 the insurance total “free car” 13 Tahoe LTZ Last edited by clay68c10; 02-16-2009 at 12:21 AM.



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