427 Chevelle Question

[BigD69]

I'm in a disagreement with a buddie who says Chevrolet made a factory 427 Chevelle in 1966 and 1967, I don't think so, who is correct?

[SS427]

NO ONE has EVER come up with ANY proof that Chevrolet built a 66 or 67 427 Chevelle due to the 400 cubic inch rule though many have claimed it. On the other hand, MANY dealers did 427 Chevelle swaps in that era. I knew of a few myself. This has been a long standing argument on the Chevelle community for many years.

[Lee Stewart]

1966/1967 427 Chevelle . . . Urban Legend . . . along with 1965 327/375 HP F. I. Chevy II, Chevelle and El Camino

[fsc66]

1966 and 1967 General Motors production documents show no production of a 427 motor in either year.

Paul

[BigD69]

Looks like I won that bet, thanks guys!

[novadude]

Originally Posted by BigD69

Looks like I won that bet, thanks guys!

You can never really "win" these arguments, because there is always the guy out there that insists that the factory would build anything you wanted back in the day.

As if a production line cranking out millions of cars is going to stop and do special requests (not to mention the Engineering, supply chain logistics, etc involved with something as significant as a different engine).

[markinnaples]

Originally Posted by fsc66

1966 and 1967 General Motors production documents show no production of a 427 motor in either year.

Paul

Not sure I understand that as their were 427's in Corvettes and big cars as well starting in late '66.

[SS427]

I think what Paul is saying is during the 66/67 year there are no documents that have any 427 RPO codes assigned to a Chevelle of any kind. The Tonawanda plant never assigned a code for that engine (in a Chevelle) so therefore they could not have built and installed one.

[markinnaples]

Ah, thanks Rick. That is too bad, as one would think that the 427 and the Chevelle were made for one another.

[olredalert]

----Late 65, Mark! And, to add to that, there were test 427 vehicles in 1965, mainly 1965 Corvettes, a few of which escaped the factory into private hands. One specific 65 was serial # 5 off the assembly line. It was initially built as a fuel injected roadster but taken to the tech center and had a 427 transplant. The car is fairly well known in Corvette circles. I have seen and inspected it closely.......Bill S