Mopar 273-4bbl Combo

[gmonde]

Originally Posted by James L Miller

I bought a 1966 Dodge Dart off a local Stock/SS racer in the DFW area. It's pretty much just a roller at this point, but it has a cage already in it. My plan is to run it in Stock, natural K/SA at 13.47 #/HP, probably drop down to L/SA. So far, just have a couple of blocks, cranks, picked up some 920 heads at a local swap meet, bought an LD4B and a 1967 273 AFB off Terry Dye. I made a post over on Moparts about valve selection that works in these heads, and some body suggested I put a post over here. So, if anyone has any info they are willing to divulge (buy this, don't buy that, you're a loon for running a Mopar, etc.), please post or send me a PM. Thanks.

did that ld4b edelbrock come from the factory ?? thought it was a cast iron intake

[James L Miller]

Originally Posted by gmonde

did that ld4b edelbrock come from the factory ?? thought it was a cast iron intake

It got added to the engine blueprint specs, not sure when. I'm grateful as the LD4B was easier to find than the flat iron intake.

I think I found some 1.2mm rings in the 3.66" range. Good to know they have the spacers already. I'll check into it. I e-mailed CP to see what their pistons costs. My machinist thinks the Ross pistons are too hard (brittle?).

Paul has sent me a PM. I haven't got much detail yet, but I have plenty of time.

[gmonde]

Originally Posted by James L Miller

It got added to the engine blueprint specs, not sure when. I'm grateful as the LD4B was easier to find than the flat iron intake.

I think I found some 1.2mm rings in the 3.66" range. Good to know they have the spacers already. I'll check into it. I e-mailed CP to see what their pistons costs. My machinist thinks the Ross pistons are too hard (brittle?).

Paul has sent me a PM. I haven't got much detail yet, but I have plenty of time.

the amc's had the r4b also but it got yanked a year later ,,,, just seams odd

[David Lee]

Originally Posted by gmonde

the amc's had the r4b also but it got yanked a year later ,,,, just seams odd

I think this got approved because of the d-dart, but I could be wrong

[Billy Nees]

Originally Posted by David Lee

I think this got approved because of the d-dart, but I could be wrong

D-Darts had factory modified (intake openings bored out to accept Holley) standard 273 intakes. AND adapter plates.

[65signet]

I have found the early 64-66 blocks are better, i have a 65 block in my car, with some fill, all good so far, and i am just using the hooker headers for now, until i have Performance Welding build me a set someday.

[David Lee]

Originally Posted by 65signet

I have found the early 64-66 blocks are better, i have a 65 block in my car, with some fill, all good so far, and i am just using the hooker headers for now, until i have Performance Welding build me a set someday.

what size headers are you using?

[SSDiv6]

Originally Posted by Billy Nees

D-Darts had factory modified (intake openings bored out to accept Holley) standard 273 intakes. AND adapter plates.

The D-Dart intake manifold, P/N 2536771, is identical to the 318 marine engine intake.
It's a single plane cast iron intake with an adapter for the Holley carburetor.

[older racer]

hi, just curious, I seen marine intake for 318, casting number is2846707. the carb flange is angled quite a bit from level, thanks

[Billy Nees]

Originally Posted by SSDiv6

The D-Dart intake manifold, P/N 2536771, is identical to the 318 marine engine intake.
It's a single plane cast iron intake with an adapter for the Holley carburetor.

771 is also listed as 66 California.