Best carburetor and intake manifold for a 273?

[bigrobsRT]

Im am changing gaskets out on the top end of the motor because of oil leaks and my 67 273 commando has a Weiand Stealth 8022 intake on it with an edelbrock 650cfm carb. Should I leave this intake on or swap it out with something else while im going to have it apart? I noticed air gaps in the middle of the head that arent covered and didnt know if those mattered. Thanks!

 

[RedFish]

Venting the heat out of the head can be a good thing. Dropping tiny screws and such into those cavities can be a biotch. Some owners have filled them with aluminum mesh or something similar.

 

[toolmanmike]

The LD4B Edelbrock is a great manifold for the 66 and newer 273's. The stock 4 barrel manifold works well also and is cheaper and easier to find. Watch out for manifolds made for 340 and 360 engines. They have large ports and although they will work, they aren't as efficient as the manifolds designed for the smaller 273/318 ports.

 

[65Val]

I really don't get you guys knocking the SP2P intake. I think it'd work fine for the OP's application. Everyone poo-poo's it for no high RPM power...they were never designed for that, and, I doubt he's gonna race his car, so low RPM torque will be better for him, and will help move a heavy car out much better. I had an SP2P on my first '67 Dart HT 273...it performed very well with a 500 Carter AFB....MUCH better than the 2bbl junk that it came with. Yes, LD4B would work great, but, as the OP said, he's on a budget and probably can't afford to plunk down $250+ for one. The SP2P will also support a spread-bore carb which again might help the small-engine/heavy car situation. he can probably pick up an SP2P for under $100. He can probably get an SP2P AND a carb for the price of the LD4B.

YMMV.....

 

[crashcaptn]

I've got a 273 commando with it's stock 4 barrel intake on it now and a holley 1460 (#80457-s) on it now and works OK... I'm flirting with the idea of switching it out for an edelbrock but not sure...

 

[bhwm1972]

I love the 273, I have a 65 4bbl. With a 66 you’re better off as the 64-65 have a different bolt pattern. I put later 318 heads on mine with a LD4B from eBay with a Carter 625.
The bolt-ons from LA blocks swap with the exception of 360 converters, cranks and the port size changes

 

[toolmanmike]

Not a problem. I joined the B-body forum and I don't have one of those...
Everything gets posted here, and plenty of help for your small block here.....
By the way, don't the '66 273's and up have the regular intake bolt angle??? So getting an intake would be easier?

Yes, 66 and newer have the normal LA bolt pattern size and angle.

Hey everyone! My name is Luis and i am a new guy around here! Back in April i got a 1966 dodge Coronet with a 273 and a 2 bbl. i would like you swap it out with a 4bbl and a new intake manifold to wake it up a little! So... what do you guys think would be the best bang for my buck (i am only 19 and don't have a huge budget)



Sincerely -LuisWB

Pretty much any dual plane small block LA intake will work. The factory 273 4 barrel intakes were single plane but worked just fine and are not too hard to find. I would steer clear of the large port 340-360 manifolds. They will work but not as well as one designed for a 273 or 318 with smaller ports. The old LD4B was a good one but are now harder to find and spendy for a nice one.

 

[318willrun]

Yes, 66 and newer have the normal LA bolt pattern size and angle.

Pretty much any dual plane small block LA intake will work. The factory 273 4 barrel intakes were single plane but worked just fine and are not too hard to find. I would steer clear of the large port 340-360 manifolds. They will work but not as well as one designed for a 273 or 318 with smaller ports. The old LD4B was a good one but are now harder to find and spendy for a nice one.

goodness... got paged to another 8 year old resurrected thread.... had to go see what I posted and why lol

 

[toolmanmike]

goodness... got paged to another 8 year old resurrected thread.... had to go see what I posted and why lol

Me too. Apparently I wasn't quite awake when I posted my info. Well, maybe someone else will get some good out of the discussion.

 

[toolmanmike]

The OP hasn't been on since Oct 20 2017. Oops!