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03-02-2024, 11:08 PM
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#1 |
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Registered User
Join Date: Mar 2022
Location: YUMA, AZ
Posts: 11
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Doug's headers
Has anyone tried using Doug's D313 headers on a 454 in a '67 C25?
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03-03-2024, 12:53 PM
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#2 |
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Senior Member
 
Join Date: Jul 2000
Location: North Texas
Posts: 3,599
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Re: Doug's headers
Just a note on Doug's headers. This is no longer the company it used to be back in the day. They are now a Pertronix brand made in Mexico. I bought a pair of their Tri-Y headers for the small block in my 69 2WD. They cleared the frame rails, but the welds were crappy. Also, the collectors dumped right into the trans crossmember, when it would have been easy for the manufacturer to move them outboard 2"-3" to aim them at the crossmember "kick-ups" for exhaust pipe clearance. But instead, they were aimed slightly inboard close to the trans pan.
I ended up taking mine back to Summit Racing, and bought some USA-made, 3/4 length Hedmans with beautiful welds. Here are photos showing no pride of workmanship and lack of QA. I could teach a 10-yr old kid to do better. Where the two pipes come together, there's a weld "snake", a small hole, as well as rust starting to form. Simply unbelievable! 
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! Last edited by MikeB; 03-07-2024 at 02:59 PM. |
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03-04-2024, 02:57 PM
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#3 |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,424
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Re: Doug's headers
I used Hedman 68198 Chevelle headers on mine and they fit perfectly, as I tucked the exhaust between the frame rails. I had to get a tubular trans x-member and fab up a shifter arm and linkage for the trans, but the quality is excellent, good welds and fairly heavy gauge tubing.
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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 Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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03-07-2024, 02:37 PM
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#4 |
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Registered User
Join Date: Jan 2007
Location: Puyallup, WA
Posts: 1,662
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Re: Doug's headers
Wow, that's very disappointing. Looks like its time to move over to Thorley.
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72 C10 lwb fleetside -stock 350/350 combo |
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03-07-2024, 03:05 PM
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#5 | |
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Senior Member
Join Date: Jul 2000
Location: North Texas
Posts: 3,599
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Re: Doug's headers
Quote:
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Mike 1969 C10 LWB -- owned for 35 years. 350/TH350, 3.08 posi, 1st Gen Vintage Air, recent AAW wiring harness, 5-lug conversion, 1985 spindles and brakes. 1982 C10 SWB -- sold 1981 C10 Silverado LWB -- sold, but wish I still had it! 1969 C10 (not the current one) that I bought in the early 1980s. Paid $1200; sold for $1500 a few years later. Just a hint at the appreciation that was coming. Retired as a factory automation products salesman. Worked part-time over the years for an engine builder and a classic car repair shop. Member here for 24 years! This is the very first car/truck Internet forum I joined. I still used a dial-up modem back then! |
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03-08-2024, 01:05 PM
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#6 | |
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Senior Member
Join Date: Jun 2005
Location: Winona Lake, IN
Posts: 6,424
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Re: Doug's headers
Quote:
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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 Sliding Rear Window Power Windows Power Locks Sniper EFI 2015 Silverado 1500 LS 4.3/6L80/3.23 lowered 2" front & rear |
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