I have seen several things that discussed a 1966 Chevelle with a factory-ordered 427 big block. Was this in fact an option? Or was it a dealer installed option?
Over on a different forum, someone said:
Don’t think so, although some dealers reportedly did engine swaps. GM had a 1hp per 10 lb limit in the mid 60’s which would have ruled out a 427 Chevelle.
Can anyone verify this is the case?
15 Comments
Evan
Here is a discussion about it over on Chevelles.com. The consensus still appears undecided…
Carl1955
No, I don’t believe you could get the 427 in a Chevelle, only in the Corvette and Impala.
Anthony Warenyk
Special order
Jesse
The rule was worked around by selling the 427 SS Chevelles on indian reservations https://en.wikipedia.org/wiki/Chevrolet_Chevelle
Evan
Interesting. I had heard about that happening for the factory 427s in 1967-68, but not for any 1966 models. I can’t find any source to confirm this happened on any ’66s equipped with a 427 from the factory.
glennkresge
Had to be a COPO order from dealership involved in racing to factory. Had nothing to do with Indian reservations or any jurisdiction. If the dealership sponsored racing, they could order the 427 in a Chevelle.
JP
Just saw one. Near Detroit. Won’t say where. But OMG. UNICORN!!!!
glennkresge
Had to be a COPO order to factory. A dealership involved with racing could order it the 427 in the Chevelle.
William Beaty
Yes…I rode in one…had the 427 emblems on the front fenders.. I was 16 years old and my parents wouldn’t help me buy it.. that was in 1968.