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Old 08-10-2021, 01:08 PM   #1
threepointsmach
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Default Best Head gaskets for a 59a 296ci ?

Once again, a flathead newbie asking questions--. I have a 59a bored and stroked to a 296, and want to pull the heads for a problem valve. I'd like to re-assemble the same day,and live very rural, so want to have head gaskets on site. What would be the best brand/type to use? It has aluminum heads. There is a wealth of experience on this site!
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Old 08-10-2021, 01:34 PM   #2
Jack E/NJ
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Default Re: Best Head gaskets for a 59a 296ci ?

>>>It has aluminum heads>>>


If it was mine, I'd use plain old composite head gaskets smeared with plenty of wheel bearing grease.
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Old 08-10-2021, 02:32 PM   #3
KiWinUS
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Default Re: Best Head gaskets for a 59a 296ci ?

Must use “big bore “ gaskets with you 3 3/8” bore size. I would recommend Graphtite gaskets fromBest Gaskets install as Best recommends.
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Old 08-10-2021, 02:45 PM   #4
deuce lover
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Default Re: Best Head gaskets for a 59a 296ci ?

What KiwinUS said X2
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Old 08-10-2021, 03:40 PM   #5
Phil Gillespie
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Default Re: Best Head gaskets for a 59a 296ci ?

Be sure you get it right first time as these Best Gasket big bore composite will not last more than one fitting. If you need to remove heads soon after they will delaminate!!
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Old 08-10-2021, 03:41 PM   #6
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Default Re: Best Head gaskets for a 59a 296ci ?

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Kind of depends on whether or not you're a fan of composite gaskets or copper ones.

While I like the Best Gaskets Graphtite gaskets, they are a real pain in the butt to clean off if you pull the heads later on. If I believe I might be checking things out on the motor (or refreshing the valves) in the short to medium term, I go with the copper gaskets from Best instead of the Graphtite ones. They are a heck of a lot easier to remove than having to spend hours chipping away on the delaminated Graphtite (or other composite) type gaskets.

Also, don't buy the Graphtite "clones" from Speedway . . . they play the confusion game on their website and make their own product sound like Best Gaskets - and there are issues with them. They do sell Best Gaskets as well - just be sure what you're ordering.

With that said, I use the Graphtite gaskets most often - other than for more race-type engines where I'll have more frequent tear-downs (like my own). On race type engines that are supercharged and NOT o-ringed, then I use MLS type gaskets from Cometic. They are expensive, but a really good product if you have the correct surface finish on the decks and heads and are worried about boost. Also, Cometic can supply them in a wide range of compressed thicknesses, which can help one tune the quench if need be.
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Old 08-10-2021, 03:51 PM   #7
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Default Re: Best Head gaskets for a 59a 296ci ?

Frankly speaking, if everything is flat and clean and NOT overtorqued, any gasket, with large bore capability, will work just fine for you. In most cases I would recommend the copper clad gaskets, especially if a disassembly is anticipated.
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Old 08-10-2021, 04:41 PM   #8
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Default Re: Best Head gaskets for a 59a 296ci ?

Copper 3036, You can reuse then over may times. Torque ti 45 lbs thru 3 heat cycles.
Gramps
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Old 08-10-2021, 05:49 PM   #9
threepointsmach
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Default Re: Best Head gaskets for a 59a 296ci ?

I knew I'd get some good info here! Thanks to all! Plenty to chew on----.
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Old 08-10-2021, 07:38 PM   #10
Bored&Stroked
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Default Re: Best Head gaskets for a 59a 296ci ?

Quote:
Originally Posted by JWL View Post
Frankly speaking, if everything is flat and clean and NOT overtorqued, any gasket, with large bore capability, will work just fine for you. In most cases I would recommend the copper clad gaskets, especially if a disassembly is anticipated.
Hey JWL . . . you don't even have to preface your post with 'Frankly speaking' . . . it is how you speak and we appreciate you for that very fact!
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Old 08-11-2021, 11:05 AM   #11
alchemy
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Default Re: Best Head gaskets for a 59a 296ci ?

So you guys reusing your copper gaskets aren't spraying them with coppercote before assembly are you?
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Old 10-15-2021, 03:55 PM   #12
DavidG
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Default Re: Best Head gaskets for a 59a 296ci ?

Copper head gaskets speed up the electrolytic cavitation of aluminum heads.
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Old 10-15-2021, 08:05 PM   #13
Charlie ny
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Default Re: Best Head gaskets for a 59a 296ci ?

Best source for BEST gaskets is VanPelt.
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Old 10-15-2021, 08:38 PM   #14
Pete
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Default Re: Best Head gaskets for a 59a 296ci ?

Copper 3036. I spray with aluminum spray can paint and let get tacky before installing.
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Old 10-16-2021, 01:23 AM   #15
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Default Re: Best Head gaskets for a 59a 296ci ?

I agree with David.I used copper gaskets on my '33 w/orig alu heads after the engine rebuild.Sprayed them with blue Hylomar before installing.After a year they were seeping and foamy yellow stuff was appearing along the top edge at the deck. I switched to "Best" graphite with copper coat.Problem solved.
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