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273 intake manifold #1313444 09/30/12 09:10 PM 09/30/12 09:10 PM
Joined: Sep 2012 Posts: 5 Washington R rsusag OP member
rsusag OP member R Joined: Sep 2012 Posts: 5 Washington	Hi all, I have a 1967 Dart 273 ci with the 2 barrel carb. I want to put a Holley 390 4 barrel on. Can someone recomend an intake thats the approximate same size as the current intake. Edelbrock webpage is hard to navigate for some reason. Thanks, Ron

Re: 273 intake manifold [Re: rsusag] #1313445 09/30/12 09:14 PM 09/30/12 09:14 PM
Joined: Jan 2003 Posts: 43,642 Round Lake Beach, Illinoisy Rhinodart Rhinotruck
Rhinodart Rhinotruck Joined: Jan 2003 Posts: 43,642 Round Lake Beach, Illinoisy	You can use a factory 273 4-bbl intake, or find an old SP2P intake. The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it. JB Rhinehart, Realist A-Body's RULE!

Re: 273 intake manifold [Re: Rhinodart] #1313446 09/30/12 09:19 PM 09/30/12 09:19 PM
Joined: Jan 2003 Posts: 33,000 Grand Prairie,Texas stumpy I Win
stumpy I Win Joined: Jan 2003 Posts: 33,000 Grand Prairie,Texas	I might be wrong but I think there is two different bolt patterns for 273 intakes.

Re: 273 intake manifold [Re: stumpy] #1313447 09/30/12 11:05 PM 09/30/12 11:05 PM
Joined: May 2007 Posts: 1,443 Maryland D Dads426 pro stock
Dads426 pro stock D Joined: May 2007 Posts: 1,443 Maryland	You need one like this. Check the part number; I believe this is for 66 & later. I'm looking to get rid of it. PM me if you are interested. 7401541-Intake.JPG (768 downloads) 2012 422 Allstars NSS Champion 2013 422 Allstars NSS Champion 2014 422 Allstars NSS Champion

Re: 273 intake manifold [Re: stumpy] #1313448 09/30/12 11:29 PM 09/30/12 11:29 PM
Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska R RapidRobert Circle Track
RapidRobert Circle Track R Joined: Nov 2003 Posts: 36,041 Lincoln Nebraska	Quote: I think there is two different bolt patterns for 273 intakes. Correct & 67 is into the later pattern. Not sure when the earlier cutoff year was live every 24 hour block of time like it's your last day on earth

Re: 273 intake manifold [Re: rsusag] #1313449 10/01/12 01:40 PM 10/01/12 01:40 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Edelbrock Performer would work. LD4B would work, too. Don't try to find an SP2P, it isnh't worth the effort. Really whatever would work on a 318 would work on your 273. R.

Re: 273 intake manifold [Re: dogdays] #1313450 10/01/12 07:40 PM 10/01/12 07:40 PM
Joined: Jan 2003 Posts: 43,642 Round Lake Beach, Illinoisy Rhinodart Rhinotruck
Rhinodart Rhinotruck Joined: Jan 2003 Posts: 43,642 Round Lake Beach, Illinoisy	The LD4B has larger ports, the Performer is probably the easiest to find. It really depends on what the car is used for. The Street Dominator is a single plane intake to be used with a larger cam, so more info would be needed to help you find the proper intake. The funny thing about science is that if you change one miniscule parameter you change the entire outcome to the way you want it. JB Rhinehart, Realist A-Body's RULE!

Re: 273 intake manifold [Re: Rhinodart] #1313451 10/02/12 03:57 AM 10/02/12 03:57 AM
Joined: Aug 2003 Posts: 12,291 Kent, Wa 340SHORTY Truck Nut
340SHORTY Truck Nut Joined: Aug 2003 Posts: 12,291 Kent, Wa	and it looks like my manifold got tossed.. I am truckless..

Re: 273 intake manifold [Re: Rhinodart] #1313452 10/02/12 09:34 AM 10/02/12 09:34 AM
Joined: May 2003 Posts: 15,487 Florida S scratchnfotraction I Live Here
scratchnfotraction I Live Here S Joined: May 2003 Posts: 15,487 Florida	Quote: The LD4B has larger ports, the Performer is probably the easiest to find. It really depends on what the car is used for. The Street Dominator is a single plane intake to be used with a larger cam, so more info would be needed to help you find the proper intake. LD340 has the large ports LD4B has small ports and the runners are reversed on the LD4B with no coil mounting. at least mine is like this,there is enuff meat to open it up at the gasket to the large port size. the performer has large runners but neck down to the 318 size port,edelbroke suggest to open the port opening up to 360 size if running large port heads,but only the first 1" or so into the runner should be opend up for a gasket match. I did this on my performer a long time back with 360 heads. IMHO,the LD4B would be the best bang for the buck and the holley street dom next choise. with its low rise,single plane,spredbore flange it does rather well on a stockish street engine for street duty. I also like the one pic posted of a 4 hole open planeum 273 intake.

Re: 273 intake manifold [Re: scratchnfotraction] #1313453 10/02/12 12:35 PM 10/02/12 12:35 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	A bit of history: When the 273 was developed it retained the rather tall 9.6" deck of the Poly A motor. But, had to fit into a Dart and an effort was made to reduce the height. This was done by using a single plane intake, which the above picture shows. R.

Re: 273 intake manifold [Re: RapidRobert] #1313454 10/02/12 01:51 PM 10/02/12 01:51 PM
Joined: Jul 2003 Posts: 1,107 Spring Valley ,Ca. moparsquid super stock
moparsquid super stock Joined: Jul 2003 Posts: 1,107 Spring Valley ,Ca.	Quote: Quote: I think there is two different bolt patterns for 273 intakes. Correct & 67 is into the later pattern. Not sure when the earlier cutoff year was I believe 64 was the cutoff ive got one at home.

Re: 273 intake manifold [Re: Dads426] #1313455 10/02/12 05:33 PM 10/02/12 05:33 PM
Joined: Jan 2003 Posts: 16,376 D dogdays I Live Here
dogdays I Live Here D Joined: Jan 2003 Posts: 16,376	Quote from Allpar: Since the bolt angle on the intake changed in 1966, the 1964-65 heads and intake are unique and cannot be interchanged with other LA engines or with the later 273. It's simply the angle of the bolts, not the pattern. I imagine many late intakes have been rattail filed into working on an early 273. R.

Re: 273 intake manifold [Re: dogdays] #1313456 11/17/12 01:27 AM 11/17/12 01:27 AM
Joined: Sep 2012 Posts: 5 Washington R rsusag OP member
rsusag OP member R Joined: Sep 2012 Posts: 5 Washington	I bought an Edelbrock Performer manifold and a Holley 390. Got it installed and took her out for a test drive last night. I got the desired results. Thanks

Re: 273 intake manifold [Re: dogdays] #1313457 11/17/12 01:04 PM 11/17/12 01:04 PM
Joined: Jan 2003 Posts: 8,509 Candler,NC / Myrtle Beach, SC J JDMopar master
JDMopar master J Joined: Jan 2003 Posts: 8,509 Candler,NC / Myrtle Beach, SC	Quote: Quote from Allpar: Since the bolt angle on the intake changed in 1966, the 1964-65 heads and intake are unique and cannot be interchanged with other LA engines or with the later 273. It's simply the angle of the bolts, not the pattern. I imagine many late intakes have been rattail filed into working on an early 273. R. And vice versa. I have an Edelbrock D4B on a 71 318.

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