Red Hot Exhaust
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Freshman User
Joined: May 2006
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Red Hot Exhaust
I'm looking for advice regarding the exhaust on my 71 F100...
I've got headers coming from my 302 engine and they are just way too hot. The exhaust pipes run close to the transmission/starter and Its gotta be killing my transmission during the insanely hot phoenix, az summers because i can feel the tranny slipping in stop and go situations after those pipes get good and toasty.
Currently there is no heat shielding material to speak of...I would much rather go that route instead of going back to stock exhaust, but would shielding be enough?
Thanks
I've got headers coming from my 302 engine and they are just way too hot. The exhaust pipes run close to the transmission/starter and Its gotta be killing my transmission during the insanely hot phoenix, az summers because i can feel the tranny slipping in stop and go situations after those pipes get good and toasty.
Currently there is no heat shielding material to speak of...I would much rather go that route instead of going back to stock exhaust, but would shielding be enough?
Thanks
Senior User
Joined: Dec 2002
Posts: 473
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From: SW Florida
Some sheilding would do a lot. Just some flat steel bent up with a suitable air gap between the header and the shield will do quite a lot -- take a look at a muffler shield on a later model vehicle. Also think about having your headers coated with a ceramic coating by one of the companies that specialize in it.
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
Pauly, I passed on posting the first time by, because my opinion is pretty biased. Headers are loud and they are hot. IMHO they are starter killers and not needed for engines not turning over 5000 rpms. There are starter heat shields, I have a blanket type on mine, but I'm not aware of much more to help.
Everybody ought to have one set in his lifetime. I have mine on now.
John
Everybody ought to have one set in his lifetime. I have mine on now.
John
Fleet Owner
Joined: Jun 1999
Posts: 24,552
Likes: 74
From: Creedmoor, North Carolina
May I suggest that you look at insulation for the floor rather than wrapping the headers for the heat control. I have reservations about actually wrapping header pipes, because of the extreme heat to cold ratio that can occur there.
My 2 cents on that issue.
John
My 2 cents on that issue.
John
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Postmaster
Joined: Sep 2004
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From: wi
if your trans is slippin i dobt its caused by header heat.try a trans cooler and a fluid/filter change.stop and go traffic will heat it up a whole lot more than a header will unless your line are sittin rite on top of the header
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Senior User
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From: texas,earth
Originally Posted by wizzard351
if your trans is slippin i dobt its caused by header heat.try a trans cooler and a fluid/filter change.stop and go traffic will heat it up a whole lot more than a header will unless your line are sittin rite on top of the header
Junior User
Joined: Mar 2006
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L&L fenderwell exit header or some other kind of fender exit headers might do the trick if you dont mind replacing the headers and changing your exhaust a little. I have heddman hedders, rugular frame exit, no ceramic coating, no wrap or heat shield and have never had trouble so i dont really know whats goin on but a good heat shield should do the trick if you dont want to change up headers
Lead Driver
Joined: Mar 2008
Posts: 7,182
Likes: 380
From: Near Los Angeles
I have learned to always use studs into the head with headers, and, when first installed, torque to spec in the proper sequence, let cool, torque again, repeat one more time, and forget about it.
I also found that these connectors, as with the ball and socket type collectors, work well. 2-1/2" MARMAN ASSY-304SS - GBE MANDREL BENDING You can get them in stainless or steel.
I also found that these connectors, as with the ball and socket type collectors, work well. 2-1/2" MARMAN ASSY-304SS - GBE MANDREL BENDING You can get them in stainless or steel.
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