I currently run Dynomax ceramic headers. The driver side hangs too low since my car sits quite low. I am looking at Dougs headers or Thorley's.

Anyone have experience with these as far as how they fit, how far they hang down, and which is better maybe?

Thanks.

Doug Thorley , 376 y1C for manual trans cars. They tuck up very well for low clearance car. Have an exceptional sealing ability at the collector. 14 ga tubing and 3/8's flanges. Coated. Not cheap.

How about any info on the Doug's headers? Doug's run about 70 bucks cheaper I than Doug Thorley headers. Hell for about another $125 you can get 304 stainless from Stainless Works.

I'm running the ceramic Thorley 376Y's on my lowered 68 with a manual trans, excellent fit.

I ended up getting them here, cheaper than Summit Racing with 10% off and really free shipping.

http://www.autoanything.com/exhausts-mufflers/61A2787A0A0A2423262.aspx

Mike

If you want/need 1 3/4 primary tubes, the Thorleys are out, as they don't make a SBC header in that size. Doug's D368 has 1 3/4 tubes.

What you DON'T want are Hooker SuperComp #2131. Yikes!

I recently asked a couple of members via PM about the Doug's and ground clearance - both replies were very positive.

I ended up with the Thorley 376Y1 as well ('69 coupe, ST10 manual) and bought them through AutoAnything as well after reading one of Mike's previous posts. You may need to do a search for "autoanything" and "coupon" online to find a list of coupon codes for 10% off.

As far as Dougs vs. Thorley, I believe the only 1st gen tri-y headers that are under the Dougs brand have a "375" part number, which (I'm guessing) is analogous to the "375" Thorley part. Some people have had issues with these with PS box interference, etc. All my reading here indicates that the 376Y1 or their ceramic coated equivalent are the "best fit" parts.

FWIW, here's the thread with Mike's previous post(s) and some nice header pics. (excellent car btw mike! I want your dash!)
http://www.camaros.net/forums/showthread.php?t=102486&page=3

If you want/need 1 3/4 primary tubes, the Thorleys are out, as they don't make a SBC header in that size. Doug's D368 has 1 3/4 tubes.

What you DON'T want are Hooker SuperComp #2131. Yikes!

I recently asked a couple of members via PM about the Doug's and ground clearance - both replies were very positive.


I will vouch for the Hooker 2131, They are good headers but they hang too low. What I got rid of.

I have Thorely 376Y1C on a 68 SBC w/ a THM700R4 Automatic. I noticed folks saying they work with a manual box. They also work with autos. Steering box clearance is great. Excellent fit under the floor pans. What I don't know is if they work with factory AC.

I have Thorely 376Y1C on a 68 SBC w/ a THM700R4 Automatic. I noticed folks saying they work with a manual box. They also work with autos. Steering box clearance is great. Excellent fit under the floor pans. What I don't know is if they work with factory AC.

I have Vintage air on my car with these headers, Your compressor is on left? I dont see what would get in the way that you can't refab to get them to work. I dont think the AC case would even get in way any more than a set of Hookers.

A/c compressor is on the right but a March Ultra front drive system is going in also (coming home present from the wife I just found out) so no worries on accessories clearance. My biggest issues will then be steering box, which everyone says is good, and clearing manual clutch linkage. I am putting a TKO in when I get home also.

You might want to verify the header port matches your cylinder heads. The tri-y's are 1 5/8" oval. In my case with Pro-Action 180's they were too small.

Thorley sent me a tracing of the header port. I can fax it to you if desired.

A/c compressor is on the right but a March Ultra front drive system is going in also (coming home present from the wife I just found out) so no worries on accessories clearance. My biggest issues will then be steering box, which everyone says is good, and clearing manual clutch linkage. I am putting a TKO in when I get home also.

I did not have any clearance issues on steering box with Thorleys. I added ps.

Welcome Home :waving:

Well, I will be buying new AFR eliminator's so they should be fine. Sounds like the Thorleys will be it.

Thanks for all the input.

I dont know what the exhaust port looks like on the cnc eliminators heads, but my thorleys fit perfect on my afr 195 heads. Using ultraseal black gaskets from Mr gasket # 5907. The have been there for last 3 years. Dead soft alum or copper, went to trash.

If you want/need 1 3/4 primary tubes, the Thorleys are out, as they don't make a SBC header in that size. Doug's D368 has 1 3/4 tubes.

What you DON'T want are Hooker SuperComp #2131. Yikes!

I recently asked a couple of members via PM about the Doug's and ground clearance - both replies were very positive.

When are the Doug's arriving?

RA

Tomorrow.

Actually zdld17, I may have 9 more months to go, we all just got the extension last month to 15 month tours here. I am going to order parts and have them sent to the house for the wife to stack in the garage.

I dont have it as bad as the kids going off the base everyday on the ground. We get shot at when we takeoff, but I feel much safer flying my aircraft than I would driving off base in a truck everyday. Amazing the courage I am seeing here everyday.

Actually zdld17, I may have 9 more months to go, we all just got the extension last month to 15 month tours here. I am going to order parts and have them sent to the house for the wife to stack in the garage.

I dont have it as bad as the kids going off the base everyday on the ground. We get shot at when we takeoff, but I feel much safer flying my aircraft than I would driving off base in a truck everyday. Amazing the courage I am seeing here everyday.

Stay safe.

Tomorrow.

When do we have to fire up the welder?
Your car will never know the diff in HP cause you DON'T have ANY TIME SLIPS!

It won't care. Trust me! It's yellow primer.....

Tomorrow.

When do we have to fire up the welder?
Your car will never know the diff in HP cause you DON'T have ANY TIME SLIPS!

It won't care. Trust me! It's yellow primer.....:hurray:

No time slips, but I do have an interior complete with windows that ROLL UP!

You've seen how bad business is. We had nuns, protesting in front of the dealership this morning.

Nuns?

Yeah. I had to get Jim to turn the fire hose on them.

I've had Thorleys Tri-Ys on my '67 since around '88. They clear factory A/C box & power steering just fine. I liked them so much that when they started to rust a little 10 years ago I had them ceramic coated.