Fendertag 1966 Coronet 440...

[R/T Boy 67]

Yes, on both counts.

 

[Highway6]

Yes, on both counts.

Thank you. Wasn't a 8 3/4 a bit much for the small 318? Or maybe the axle changed somewhere during it's lifetime..

 

[R/T Boy 67]

I'm sure it would be original. It would be the lighter duty one. The last three digits of the casting number would be 741.

 

[Ceedawg]

Thanks for all your answers guys!
This Coronet arrived in the Netherlands a couple of days ago. And is not mine yet. If all goes well the car goes on a lift tonight. That way we'll be able to see more of the car. And find out what engine and tranny are in it.

View attachment 1770469

View attachment 1770470

View attachment 1770471

View attachment 1770472

View attachment 1770473

View attachment 1770474

View attachment 1770475

That’s a poly

 

[YY1]

All the 1966 B body cars I've ever owned or seen except 225 six cyl cars have had an 8 3/4 axle.
Not sure about 273.

Yes, that is what you have.

There is nothing wrong with a 741 casting.

Most common ratio I've seen is 2.94:1

 

[Highway6]

That’s a poly

Is a Poly more or less desireable than the LA version?

 

[Highway6]

Thanks for all the info guys, much appreciated!

 

[R/T Boy 67]

The poly is a good reliable engine, but performance parts, are much More plentiful for the LA engines.

 

[YY1]

Yes, harder to find parts for and items like a four barrel intake and headers are much more expensive.

My 66 poly was the torquiest 318 I've ever had.

 

[Highway6]

Thank you guys!

 

[MarkLevi]

Is a Poly more or less desireable than the LA version?

One downside to the Polyspherical - much like its' big brother the Hemispherical - is it's relatively Heavy! A Poly is close to as much as a regular 440...like 50 or 70 pounds less, I believe?

 

[Highway6]

One downside to the Polyspherical - much like its' big brother the Hemispherical - is it's relatively Heavy! A Poly is close to as much as a regular 440...like 50 or 70 pounds less, I believe?

Wow..

 

[YY1]

I wouldn't worry about that.

 

[Ceedawg]

One downside to the Polyspherical - much like its' big brother the Hemispherical - is it's relatively Heavy! A Poly is close to as much as a regular 440...like 50 or 70 pounds less, I believe?

Shortblock is same weight just heads and intake are heavier, but much wider than the LA. Much less hipo parts for the poly.

 

[cudamark]

Shortblock is same weight just heads and intake are heavier, but much wider than the LA. Much less hipo parts for the poly.

Wider overall because of the taller heads. The block is the same width as the LA block.

 

[cudamark]

Big blocks have a different bolt pattern, so there's a BB 727 and SB 727.

There's also one made for the slant 6 too. In all versions, there were both long tail slip yoke and short tail bolt-on flange versions, along with both linkage and cable shift depending on year. Truck/van/motorhome versions have a timing hole cut into the bell housings for easier ignition timing. The A100 version has a unique mount where the transmission hangs from a mount rather than sitting on one.

 

[cudamark]

My info lists a G1 as being tinted glass all windows. Doesn't look like it from your photos though...

 

[Ceedawg]

My info lists a G1 as being tinted glass all windows. Doesn't look like it from your photos though...

Same as mine, only option other than Hemi-4 speed