Clifford Dual Outlet Headers on a 63 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

18CEOD · 04-19-2018, 12:58 PM

I apologize if this has been beat like a dead horse. I have exhausted my form search abilities and google skills.

I've got a question I just cant seem to find a comforting answer too. Will Clifford's Chevy 250/292 Dual Outlet Street Rod Headers fit on my 63 with an IL 292 and a SM420 four speed? I'm sure the 1 through three cylinder section will clear the motor mount but I'm concerned the second half will interfere with the clutch fork and linkage.

I spoke with Larry at Clifford's yesterday and in the course of the conversation he stated they would, but also mentioned if they didn't that all I would have to do is cut the collector and re-weld. ???

I've looked into Tom Lowes split manifolds but with the direction I'm going I would prefer a decent set of Headers.

Any help would be fantastic.

lowslow64 · 04-19-2018, 01:35 PM

I have the split manifolds from 12bolt.comfor my 292. The pics I have can give you a pretty good idea what you may have. I personally think it will work. But these are a little pricey.

18CEOD · 04-19-2018, 03:27 PM

Lowslo64, thanks. I was looking hard at the cast. The Clifford's just seem to have a slightly different angle. I just talked with an exhaust guy who said pretty much the same thing, that it'll work.

vin63 · 04-19-2018, 04:18 PM

Are the Street Rod headers the full length or shorty set? This was the Clifford set I ran a long time on another vehicle...I was also a little concerned about motor mount interference, so I did this mock up on my old L6 that I had on a stand in my shop before having them ceramic coated.

18CEOD · 04-19-2018, 05:20 PM

vin63, they are the shorties. It looks like you had enough clearance. Were you happy with the performance?

**The Rocknrod** · 04-19-2018, 07:16 PM

Back before they made em we used to modify our exhaust manifolds.
There was no internet back then so searching was only done via magazine adds.
Yep we actually lived through it.

vin63 · 04-19-2018, 11:11 PM

Yes, I was very happy with them, but I live in a pretty warm climate. One of my buddies runs a manifold heater plate that taps into the engine coolant - it really helps with drivability especially in colder weather. Also, having the headers ceramic metallic coated makes a big difference.

Quote:

Originally Posted by 18CEOD

vin63, they are the shorties. It looks like you had enough clearance. Were you happy with the performance?

18CEOD · 04-20-2018, 08:00 PM

Thanks, I was considering the ceramic coating as well.

04-19-2018, 12:58 PM	#1
18CEOD Registered User Join Date: Apr 2018 Location: Great Falls, Montana Posts: 18	Clifford Dual Outlet Headers on a 63 I apologize if this has been beat like a dead horse. I have exhausted my form search abilities and google skills. I've got a question I just cant seem to find a comforting answer too. Will Clifford's Chevy 250/292 Dual Outlet Street Rod Headers fit on my 63 with an IL 292 and a SM420 four speed? I'm sure the 1 through three cylinder section will clear the motor mount but I'm concerned the second half will interfere with the clutch fork and linkage. I spoke with Larry at Clifford's yesterday and in the course of the conversation he stated they would, but also mentioned if they didn't that all I would have to do is cut the collector and re-weld. ??? I've looked into Tom Lowes split manifolds but with the direction I'm going I would prefer a decent set of Headers. Any help would be fantastic. Attached Images Last edited by 18CEOD; 04-19-2018 at 01:24 PM.

04-19-2018, 01:35 PM	#2
lowslow64 Registered User Join Date: Dec 2009 Location: Rockwall Texas Posts: 79	Re: Clifford Dual Outlet Headers on a 63 I have the split manifolds from 12bolt.comfor my 292. The pics I have can give you a pretty good idea what you may have. I personally think it will work. But these are a little pricey. Attached Images

04-19-2018, 03:27 PM	#3
18CEOD Registered User Join Date: Apr 2018 Location: Great Falls, Montana Posts: 18	Re: Clifford Dual Outlet Headers on a 63 Lowslo64, thanks. I was looking hard at the cast. The Clifford's just seem to have a slightly different angle. I just talked with an exhaust guy who said pretty much the same thing, that it'll work.

04-19-2018, 04:18 PM	#4
vin63 It's Better With Nitro Join Date: Apr 2008 Location: Chino Hills, CA Posts: 2,262	Re: Clifford Dual Outlet Headers on a 63 Are the Street Rod headers the full length or shorty set? This was the Clifford set I ran a long time on another vehicle...I was also a little concerned about motor mount interference, so I did this mock up on my old L6 that I had on a stand in my shop before having them ceramic coated. Attached Images __________________ 1963 C-10: Deluxe-optioned cab, shortbed, fleetside Pontiac 462 ci, Kauffman D-Port alum. heads 4L80E, narrowed sheetmetal Ford 9-inch Tubular front and rear suspension Custom 6-piston front disc and 4-piston rear disc brakes

04-19-2018, 05:20 PM	#5
18CEOD Registered User Join Date: Apr 2018 Location: Great Falls, Montana Posts: 18	Re: Clifford Dual Outlet Headers on a 63 vin63, they are the shorties. It looks like you had enough clearance. Were you happy with the performance?

04-19-2018, 07:16 PM	#6
The Rocknrod Moderator Join Date: Aug 2011 Location: China Spring, TX Posts: 7,280	Re: Clifford Dual Outlet Headers on a 63 Back before they made em we used to modify our exhaust manifolds. There was no internet back then so searching was only done via magazine adds. Yep we actually lived through it. Attached Images __________________ Master Chief, US Navy, Retired 1964 C10 Step-side Short Bed - In Progress 2009 2500HD Duramax LTZ 1948 GMC Panel 1956 Big Window Stepside 1953 5 Window Chevy Stepside 1932 Coupe New Seat Foam for Bench Seats?

04-20-2018, 08:00 PM	#8
18CEOD Registered User Join Date: Apr 2018 Location: Great Falls, Montana Posts: 18	Re: Clifford Dual Outlet Headers on a 63 Thanks, I was considering the ceramic coating as well.



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