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Discussion Starter #1
ok so which gaskets do all of u recommend using when installing headers (shorties) on my 302?

ive heard of these metal type u can get at autozone work great.

my goal? to prevent leaks later on.
 

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Felpro makes a nice gasket.

Sent from my SAMSUNG-SGH-I317 using AutoGuide.Com Free App
 

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I use a smear of RTV red on gaskets, some I've read use RTV only.
 

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I used a blue felpro with a metal layer. With a bead of high temp silicone I have reused them about four times now with no leaks.
 

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Discussion Starter #7

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I've been using set from Car Quest (Victor Reinz graphite) for the last 4 years (50,000 miles) on my Mustang, which is my daily driver. Never had a single leak. I will say though stay away from the cheap fiber gaskets. Those have always given me headaches for collectors, never mind exhaust ports.
 

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Discussion Starter #9
I've been using set from Car Quest (Victor Reinz graphite) for the last 4 years (50,000 miles) on my Mustang, which is my daily driver. Never had a single leak. I will say though stay away from the cheap fiber gaskets. Those have always given me headaches for collectors, never mind exhaust ports.

Fiber?
 

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Gaskets like these, for example:

Flowtech Replacement Header Gasket Sets 99263FLT - SummitRacing.com

Looking at Summit, some use paper as well (though I'm not sure if they literally mean paper) but regardless, any fiber type of gasket I've used may seal well initially but are too weak to hold themselves together for an extended period of time. Although I've heard people use just the Copper RTV or even grease, with both surfaces precisely decked/ground.
 

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Running these on a mill very close to your specs. with Hedman long tube 1 5/8" headers.
Remflex -Made in USA with built in "crush" of 50% to take up irregularities, & gaps up to 1/16" inch. they rebound which means, they say, no retightening.
torque them to 20ft.lbs
Small Block Ford- Remflex part # 3003

www.remflex.com
 

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Remflex for me. Running them on a 347 and a 351W for over a year. Torqued them once have not leaked since.
 

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No sealants on the Perceys gaskets. No leaks unless a bolt backs out. Snug it up and good to go.

I've been using the solid aluminum collector gaskets with Hi-temp RTV. Never had a leak there either.
 
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