Guest Posted September 3, 2002 Share Posted September 3, 2002 Which motor was put into the 1970 Riviera GS. Was it the Stage 1 or the stock big car motor.Supposedly there were only 3105 70 Riv GS's built Link to comment Share on other sites More sharing options...
Guest Posted September 4, 2002 Share Posted September 4, 2002 sf code 370 hp. Link to comment Share on other sites More sharing options...
Guest Posted October 1, 2002 Share Posted October 1, 2002 In the book it say that the riviera gs and the stage one use the same cam and valve springs so I would presume it's a stage 1. Link to comment Share on other sites More sharing options...
The Old Guy Posted October 1, 2002 Share Posted October 1, 2002 The Riviera stage 1 and the A body GS used a different cam. The A body had 2 grooves ,and the Riv had one.The riv cam had less duration because the car was heavier, and they had the A body cam tuned to just haze the tires so the Riv cam would have broken the tires loose Link to comment Share on other sites More sharing options...
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