1965 273 Intake Manifold Gaskets

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Coda Improvements

Coda Improvements

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New to the forum, and amazed with all the great information. Looking to assemble a 1965 273 with an Edelbrock D4B intake manifold and Carter AFB. Fel-Pro MS9935 gaskets are out of stock everywhere. Any suitable replacements that are similar?
 
Welcome to the site. Look around for Mahle MS15125 or Victor 111053101 as well.
 
I have a Fel Pro set laying around someplace, if you can't find one. It will take me a bit to find it.
 
toolmanmike said:
Welcome to the site. Look around for Mahle MS15125 or Victor 111053101 as well.
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Rockauto shows those PN's, but both "Out of Stock". You can click their "Notify Me When Available Button", but can be a long or even infinite wait.
I wonder if a later year could work, even for the Magnum engines. Might need to enlarge around the bolt holes w/ gasket punch, and some later heads had taller intake ports, but might still seal.
 
Seems two years later and you still can't find intake gaskets for a 273.
 
73Charger318 said:
Those show a 2 barrel port.
These are coming up as good for an LA small block, and half as thick. Curious what others have used in their builds.

www.summitracing.com

Fel-Pro 1213 S-3 Fel-Pro Performance Intake Manifold Gasket Sets | Summit Racing

Free Shipping - Fel-Pro Performance Intake Manifold Gasket Sets with qualifying orders of $109. Shop Intake Manifold Gaskets at Summit Racing.
www.summitracing.com www.summitracing.com
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Print-O-Seal.. Very good gaskets. I needed thin and had some steel shim gaskets. (heads milled and intake surfaced after the fact)
 
the 1213's are close, but not a dead nuts match.

reasonable closeness for my application: 68 318 2bbl heads and an LD4B

great quality gaskets though.
 
wheelsport said:
The 273, 318, and 340 engine gaskets are interchangeable.
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for the most part, yes.

however, special attention should be paid to the intake and exhaust ports-- 273 & early 318 are smaller and a mismatch can result in a poor seal or intake leak.
 
Thanks for the info. I would love to find that dead nuts match, but they don't seem to be available. I'll just chill till I actually need them and see if I can get lucky. My engine isn't even out of the car yet. Just parts shopping.
 
73Charger318 said:
Thanks for the info. I would love to find that dead nuts match, but they don't seem to be available. I'll just chill till I actually need them and see if I can get lucky. My engine isn't even out of the car yet. Just parts shopping.
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summit is really good about listing the port measurements of the gaskets in the specs, so give it a whirl.

i can tell you that you'll need *early* 318 exhaust gaskets, the later stuff is way big and just close enough to let you think that they might just work. they're readily available and inexpensive though (felpro) and mr gasket has some trick copper ones that are a little bit of money.
 
I couldn't find a 273 four-barrel manifold so I installed an Edelbrock Performer 318 intake on my 273 using a 273 intake gasket. I checked with Edelbrock about the port size differences and was told that the turbulence caused by the port mismatch wouldn't be of any concern and could enhance combustion. The 318 manifold mating surfaces are the same as the 273, but the bolt hole's top surface has a different angle. I fabricated angled shims to apply the proper torque to seal the gasket. No vacuum leaks.
 
The FelPro part number for the 64-65 273 is MS 9935. Just google it from time to time, check Rock auto also once in a while. I do have a set somewhere, but it will take me a bit to find it.
 
lemondana said:
The FelPro part number for the 64-65 273 is MS 9935. Just google it from time to time, check Rock auto also once in a while. I do have a set somewhere, but it will take me a bit to find it.
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Thanks. The 1243 seems to be the best available now, made for the smaller 273/318 ports. Rock Auto doesn't even list the MS 9935 anymore. If you did come across yours I would be interested. I haven't purchased the 1243 yet. Thanks.
 
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