this is an official letter/notice of cancellation of the various hi-po engines for the Corvette for '70 that was authored after a meeting of the corvette engineering group. This came from Gib Hufstaeder's personal files. I have also included a page from the confidential 1970 Chevrolet Powertrain Features book, which was the preparation document that showed what was "intended" for 1970.
My car is about as close to a '70 LS7 factory car as you are gonna get - it had all the hi-perf go fast goodies GM could sell thrown at it back in the day including a 'CLZ' stamped LS7 crate engine.
Read about it here if you wish:
https://www.yenko.net/ubbthreads/ubbt...opics/519588/1