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Re: What are my choices for 273 intake manifold
[Re: maxxx]
#1058251
08/21/11 02:55 AM
08/21/11 02:55 AM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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64-66 use their own manifold, I think offenhauser made one and I think there is a dual quad weiand intake and the stock intake.
67-69 can use any run of the mill 318 360 340 intake, the larger ones litke the performer RPM or LD340 have some port mismatch but no big deal on a stockish engine. The performer or street dominator fit good on the later ones.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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Re: What are my choices for 273 intake manifold
[Re: maxxx]
#1058255
08/21/11 09:01 AM
08/21/11 09:01 AM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
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I Live Here
Joined: May 2003
Posts: 15,487
Florida
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LD4B would have the smaller ports to match the heads are you locked into the 273 head? if not a set of the 318 #302 heads would be a great upgrade and open up the intake choise. small ports,swirl port fast burn closed chamber,same valve size as 273
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Re: What are my choices for 273 intake manifold
[Re: maxxx]
#1058256
08/21/11 03:48 PM
08/21/11 03:48 PM
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Joined: Oct 2005
Posts: 210 Florida
ddartdude
enthusiast
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enthusiast
Joined: Oct 2005
Posts: 210
Florida
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Quote:
ah 65 cuda I'm working with! Something always holding ya back on these early A's.... Thanks for the help... [/quot
For a 65 - 273 with stock heads, you'd need an Edelbrock D4B. If you use 66 or later heads, then the LD4B is what you need. They are for the 273 and 318 engines.
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Re: What are my choices for 273 intake manifold
[Re: ddartdude]
#1058257
08/21/11 04:43 PM
08/21/11 04:43 PM
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Anonymous
Unregistered
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Anonymous
Unregistered
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The stock iron single plane unit looks like a poor choice but it WORKS great and makes plenty of TQ despite the looks of it--they are cheap when you find one and.. no hood clearance issues. Even on a warmed up 273 they do way better than you think.
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Re: What are my choices for 273 intake manifold
[Re: maxxx]
#1058260
08/22/11 03:01 AM
08/22/11 03:01 AM
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Joined: May 2008
Posts: 303 CA
David Lee
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enthusiast
Joined: May 2008
Posts: 303
CA
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you have said that you are going to change the cam, if not I would stick with the stock single plane or the one that came of the D stock models. I would stick with tthe stock heads if you do not plan on putting a larger cam in
Ah...so many pedestrians, so little time...
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Re: What are my choices for 273 intake manifold
[Re: David Lee]
#1058261
08/22/11 12:06 PM
08/22/11 12:06 PM
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Joined: Jan 2005
Posts: 12,419 Kalispell Mt.
HotRodDave
I Live Here
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I Live Here
Joined: Jan 2005
Posts: 12,419
Kalispell Mt.
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The D-dart used the same intake as the other 4bbls.
308 heads are a terrible option as compression will be really bad like mabey 6.5 to one. The valves will need notching and it will have a ton of crevice volume and no quench at all. The big ports will keep the velocity too low for any low speed performance.
The best head for a 273 is the 920 heads from 67 273 and 318s only, you can use what ever normal SB intake you want and they have the smallest chambers, valves that fit without notches, more flow than the 302 head with out being too much like the 360 heads.
I am not causing global warming, I am just trying to hold off a impending Ice Age!
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