D4B with leveling washers or late intake with leveling washers

[Beams]

Hi all,

Not an immediate project here, just thinking…

So I currently have a hipo 1967 273 in my 1965 dart. Stock single plane intake.

I have a D4B stashed away that I’m considering using on my currently installed motor. I’d likely use leveling washers like these to deal with angle differences.

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I think the bolt holes on mine are slightly oval already.

I don’t want to ditch the D4B because I have a 1964 273 also stashed away. I also like the idea of using the D4B because it’d be proper for the car.

Lots of potential conversation here. I really just want to see if anyone has actual pictures of using those leveling washers, or similar workarounds.

Pic of my D4B for fun.

 

[mvh]

I am not sure I understand the issue. The 1967 273 should have "normal" intake bolt angles. Is the D4B designed for the early 273?

 

[Beams]

I am not sure I understand the issue. The 1967 273 should have "normal" intake bolt angles. Is the D4B designed for the early 273?

Correct! D4B for the early 273. LD4B for the “normal” intake bolt angles.

I wonder if L stands for Late(r)

 

[mvh]

Ah! You are probably right about that.... D4B vs LD4b.... makes sense.

 

[toolmanmike]

He has a D4B he want's to use on the 67 273. He may want to use it on a 64 he has stashed away. It took me a second time through to understand. Actually, he should just save the D4B for the 64 273 and look for another intake for the 67. No re-drilling holes in the old intake to make it work. .

 

[Beams]

He has a D4B he want's to use on the 67 273. He may want to use it on a 64 he has stashed away. It took me a second time through to understand. Actually, he should just save the D4B for the 64 273 and look for another intake for the 67. No re-drilling holes in the old intake to make it work. .

I’d have to pull it out again, but I’m pretty sure holes have already been redrilled.

Another option is to install the early heads I have. I have a lot more work to do before swapping intakes.

But yeah, just looking for pictures of leveling washers or similar solutions. I’ve seen people talk about it. Never actually (or virtually) seen it.

 

[JDMopar]

You should be fine with the leveling washers. Here is a pic of my D4B sitting on later model 302 casting heads on my 273. Same bolt angle as your heads. I chose to use a Weiand 8007 I had laying around instead of fooling with the washers. I did use the D4B that I have on a 71 318 without doing a dang thing to it other than bolting it on, because at the time....I didn't know the differences in the bolt angles. It worked just fine and sealed perfect.

 

[66fs]

The D4B is the hard to find intake. Any intake can be used on your 67 engine. That said, 64-65 heads only have 5/16 intake bolts besides the angle compared to 3/8 intake bolts for the 66 up LA engines.

 

[str12-340]

here are measurements that I posted in a thread called D-66 questions, see post 34 or below if this works:

So I ordered myself a digital protractor (which somebody here recommended) and here's what I found. The angle on the D-64 (64-5 heads) is 18 degrees and the angle on the D-66 (66 and up heads) is 10 degrees. so to use early manifold on late heads or late manifold on early heads you need an 8 degree tapered washer (fat side up for one and fat side down for the other and some VERY careful realignment of the bolt holes (which are ovesized for the bolts on every LA manifold). Here are some pictures

What is really required to do this right is 8 degree bevelled washers and they are available with some hunting.