supercoupe5
New Member
- Joined
- Feb 4, 2007
I though the Riv was a 4.1 stage 2. It was the first port fuel injected efi car GM ever campaigned. Used the same basic electronics as an 84-85 TR. Someone else chime in to confirm this. I havent seen my powersource manual in over 10 years and i know it was mentioned in there.Just a note here. The Stage II stuff wasn't available in 1981. 1983 was the first year of the Stage II program. They might have had a HD block or a prototype Stage I? The 1981 pace car was rated at 281hp 4.1 liter. Even the 1983 twin turbo Riv. had Stage I block and heads, not the stageII.
What exactly is this?