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#1
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My Heddman 1-3/4" came back from Moore coatings...sweet. I'm checking my exhaust gasket, felpro #1424 to the heads....the port size of this gasket is too big! Port size on #16's measures 1.75" high x 1.13" wide. Checked the gasket to my header and falls outside the machined weld sealing surfice.
What is the best exhaust flange gasket to use with #16 heads stock port opening heddman 1-3/4" headers? Mr. Gasket #550? |
#2
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My Heddman 1-3/4" came back from Moore coatings...sweet. I'm checking my exhaust gasket, felpro #1424 to the heads....the port size of this gasket is too big! Port size on #16's measures 1.75" high x 1.13" wide. Checked the gasket to my header and falls outside the machined weld sealing surfice.
What is the best exhaust flange gasket to use with #16 heads stock port opening heddman 1-3/4" headers? Mr. Gasket #550? |
#3
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I've used the Fel-pro's with D's & 1&3/4 Hedman headers with no problems.
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#4
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Scott Esterle:
I've used the Fel-pro's with D's & 1&3/4 Hedman headers with no problems. <HR></BLOCKQUOTE> Same gasket & header here too on some #62 d ports. No issues, no leaks. |
#5
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Scott,
Why did they make the port size bigger on the gasket than the port size on the head? Seams to me it leak like a seive. Anyone else shed some light on this? |
#6
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Here's a couple of pics of a 1424 sitting on an old #62 D port I have laying around in the garage. Does your's look like this?
I have another set of #62s on my bird with the same hedman header and they don't leak. Maybe you got some different kind of gasket(?) pic 1 pic 2 |
#7
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MikeB...
Yes they look like your pics. Over sized for the port. Mr Gaskets are closer to the port size, What gives why wouldn't Felpro make a gasket that matches the port size? |
#8
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Porting allowance?
Les
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Les Iden ---------------------------- '65 Buick Sport Wagon Custom, 340, T350, 3:23 '66 GTO Post/468, 700R4, 3.31 (Mike's as of 9-16) '68 Grand Prix/455, dual AFBs, T400, 2:93 posi (sold) '72 TA tribute/461, T400, 3.08, (Russ's as of 9-16) '97 Mitsubishi Eclipse Spyder Turbo, Konis, 5 speed '09 Torrent GXP, nav, Sun & Sound pkg., Bilsteins |
#9
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by Wheelspin:
Porting allowance? Les <HR></BLOCKQUOTE> That's my guess also |
#10
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I installed a set this week and like the fact that they're a little larger. There's no chance that the gasket will block any of the exhaust flow. With casting irregularities it makes more sense to open up the holes a little.
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