Had that same type of yoke on my 67 Caprice. It was a 327/275 turbo 400 12 bolt combo.

I had a 1970 SS454 Monte Carlo that had the same drive shaft dampner as well. Looks weird the first time you see them. Also appears the Blue Monte may be a 12 bolt non Posi car and well as the red car. Don't see the Posi-Label on either of the trunk lids.

My uncles Monte C. was delivered off the truck with Redlines.He paid extra for em.

Nice!! What color was his Monte. Back then almost anything was possible if you wanted to pay for it.

Black as the ace of spades.Sharpest looking car I ever did see.

Tuxedo black w black vinyl top with black guts or Shadow Grey with black vinyl top with black guts are my favorite 70 Monte combos. These cars are so undervalued in my opinion. Along with 69-72 Pontiac Grand Prix and 63-65 Buick Riverias.

He installed Fender skirts too.He didn't like em as they covered up too much redline.
He soon removed them.

Here's another '70, near final assembly.

Regarding the cars shown with the resonators near the tailpipe: my understanding is that just big block Montes got resonators, so I believe those to be 402 cars.

Jeff

Just gave the Astro blue car another look and that sure looks like a small block under the hood. That would certainly blow a hole in my understanding about big blocks only receiving resonators...

Both big & small blocks received resonators.
The Monte Carlo was marketed as a Luxury car,so the exhaust had to be quiet.