421 Super Duty. Cool car. I bet that has those rare 8 lug wheels on it.

 

I am still amazed at what Pontiac did in the late 50s and early to md 60s. wide track cars, big motors, Super Duty, GTO, WOW! Personally, just my opinion, I kinda stopped liking the GTO after 1967. Anyway, Pontiac was awesome from 1958-1967.

 

Chiefs don't wear bowties ............... just saying

 

Aw man, say it ain't so! How can you look at the 1970 GTO and not like what's goin on?

 

I to this day do not understand why Pontiac didn't offer GTO with the 421? Pontiac's official position was that 389 was the biggest engine available? The 421 would have fit. And one would think that some special option could have married the two to possibly be the most iconic Muscle Car of all time? Today. 1964 GTO does have the destination of being the first Muscle Car by many circles. But not #1. Today. #1 is still debated. But a 1964 Super Duty GTO may have had that title?

JMO.

 

What are 421 going for these days? I have some sitting around.

 

You have the full dual quad setup? I think they bring decent monies. Not Hemi money of course.

 

no duals, just short blocks.

 

Hey Dart_Doc -
When the '64 GTO came out General Motors was limiting their A-body platforms to a maximum of 400 cubic inches. That's why the GTO started life with the 389.
Oldsmobile brought out the first 4-4-2 in 1964 as well and it only carried 330 cubic inches. The "4-4-2" initially stood for four-barrel, four speed, and dual exhaust.
And the first big-block Chevelles were limited to the 396, but I've read the 396 was actually 403 cubic inches. They called it a "396" to comply with the GM corporate edict.

 

Couldn't agree more, for me it was over for Pontiac, appearance wise, after 67.

 

Simple answer: corporate policy. No intermediates with more than 400 inches (at least thru 69. ) Technically the Buick was a 401, but Pontiac had 389 and 400, Olds had 330 and 400, and Chevy had 396. Nothing bigger till '70.
Edit: each of those brands had something bigger and badder that would fit, but management said no.

 

have you ever tried the chrome pen? think it's named molotov, kinda expensive at 10-12 bucks, mine seem to dry out fast, they do a pretty good job on some things.