bogus wrote:
We didn't get a 96 ZR1 because of ODBII. GM didn't want to certify the engine for just one model year.

Back in 1991/92, the C5 was going to use the LT5. That was the plan at least. Then the small block started to show life again, and they went that way. It was cheaper and easier to build and nearly as powerful. The value was there.

Then ZR1 sales started to ebb, and by 1995, it was done. IIRC, they stopped making LT5s in 1993, so the last two years were there to burn off the rest of the production.

ODBII certification was expensive; and it was cheaper to do the LT1/LT4 than the LT5. Remember, the LT1 was used in the Vette, the F-bodies and B-bodies. The F-bodies used them until 1997.