427 shp lx code and Cy 400 transmission

[copo-2]

The CY transmission was redesigned for the 50 Fred Gibb Novas. on July 12, 1968, a dealers bulletin was published concerning these transmissions with higher shift points and reinforced convertors for the torque and rpm's of solid lifter engines. The Novas were built the first 2 weeks of July, 1968. In showing of the transmission tag on this combination, the tag reveals a low serial number. Wondering what the 840 heads dates are?

[Mr BB Chevy]

Originally Posted by copo-2

The CY transmission was redesigned for the 50 Fred Gibb Novas. on July 12, 1968, a dealers bulletin was published concerning these transmissions with higher shift points and reinforced convertors for the torque and rpm's of solid lifter engines. The Novas were built the first 2 weeks of July, 1968. In showing of the transmission tag on this combination, the tag reveals a low serial number. Wondering what the 840 heads dates are?

block is A-6-9 840 are A-16-9