Originally Posted by Old as Dirt
Never know.. could have been an original LS7 454/460HP package.. available in 1971 in the Corvettes and Chevelles..
There never were any "production" RPO LS7 Cars built by GM, unless of course you ordered one custom built by NicKey Chevrolet.
The most potent RPO engine option in a Corvette for 1971 was the LS6 454 ci with aluminum open chamber heads. (Not available in anything else)
Only 188 of thses were ever produced by the General.