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09-04-2019, 06:43 PM | #1 |
Registered User
Join Date: Mar 2019
Location: Maypearl, TX
Posts: 10
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Headers too close for comfort...
Hey all. I’m swapping a 350/350 into my ‘62. I went with Sanderson Patriot headers because that’s what my buddy has in his ‘60 with a 327/350 combo. Anyways, the passenger side is awfully close to frame rail and drivers side is awfully close to motor mount perch.
Do you all think they are too close for comfort? Should I apply some heat to the bends and “persuade” them to fit better? What are y’all ideas? |
09-04-2019, 09:02 PM | #2 |
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Join Date: Dec 2017
Location: Alabama
Posts: 3
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Re: Headers too close for comfort...
Nah, my passenger side is touching the frame. I gotta fix that.
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09-04-2019, 09:21 PM | #3 |
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Join Date: Feb 2012
Location: Beautiful BC, Canada, eh?!
Posts: 2,279
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Re: Headers too close for comfort...
I like to shoot for a finger-width of clearance, you could get away with half a finger-width. Probably depends on how much the engine moves. I have polyurethane mounts in the stock clamshells on my '77 daily, and the motor hardly moves at all, so I can be a lot closer with the exhaust. I will likely do the same on my '61.
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1961 Apache: "Grabber Orange" Shortboxed, pancake, step-notch, air-ride, turbo, LS 1977 Silverado: Shortboxed & dropped, potato-potato V8 Pontiac Firefly (Chevy Sprint): The ultimate engine swap: 5.7L in a 1.0L bag Lotus Super 7 Replica: Scratch-built street-legal rollerskate |
09-05-2019, 11:42 AM | #4 |
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Join Date: Oct 2007
Location: Marietta, GA
Posts: 810
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Re: Headers too close for comfort...
I don't think you'll have any trouble with that. Worst it can do is give you a little vibration inside the cab if it were to settle to the point where one side or the other were actually touching. If that happened, I'd grind a little bit on the frame for clearance. On the other side, I'd gently ding the header tube.
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09-05-2019, 03:23 PM | #5 |
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Join Date: Aug 2011
Location: China Spring, TX
Posts: 7,280
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Re: Headers too close for comfort...
I call that clearance.
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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? |
09-09-2019, 01:47 PM | #6 |
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Join Date: Sep 2016
Location: Ozark, MO
Posts: 573
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Re: Headers too close for comfort...
Any further from the frame rail, puts it closer to the starter.....so I think it's plenty of clearance.
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09-09-2019, 01:49 PM | #7 |
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Join Date: Aug 2016
Location: Lake Forest, CA
Posts: 2,178
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Re: Headers too close for comfort...
That is plenty of room.
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09-09-2019, 05:09 PM | #8 |
Senior Member
Join Date: Jul 2000
Location: North Texas
Posts: 3,609
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Re: Headers too close for comfort...
I'd say you want a 1/2" minimum, depending on how much engine rock you have when you blip the throttle. Or install some polyurethane mounts and the engine will rock MUCH less.
Also, make sure the header tubes have a few inches clearance to brake and fuel hard lines. if not you can wrap the lines with a heat reflective material. Here are some that use velcro, so you don't have to disconnect
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Mike 1969 C10 LWB -- owned for 36 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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