mfg Posted September 29, 2019 Report Share Posted September 29, 2019 A '65-'66 Avanti ll 327CI engine had a compression ratio of .....?..... to one. 1) 9.5......2) 9.75......3) 10.25 or.....4) 10.50 Link to comment Share on other sites More sharing options...
r1lark Posted September 29, 2019 Report Share Posted September 29, 2019 Feel it has to be 10:1 or above, so I'll go for broke and say #4 10.5:1 CR. Link to comment Share on other sites More sharing options...
mfg Posted September 29, 2019 Author Report Share Posted September 29, 2019 3 hours ago, r1lark said: Feel it has to be 10:1 or above, so I'll go for broke and say #4 10.5:1 CR. Nice try, however, answer #4 is not correct. Link to comment Share on other sites More sharing options...
Gunslinger Posted September 29, 2019 Report Share Posted September 29, 2019 (edited) 10.25:1 I believe. It was the base Corvette 327/300 hp engine. The 327/350 would have been higher. Edited September 29, 2019 by Gunslinger Link to comment Share on other sites More sharing options...
mfg Posted September 30, 2019 Author Report Share Posted September 30, 2019 22 hours ago, Gunslinger said: 10.25:1 I believe. It was the base Corvette 327/300 hp engine. The 327/350 would have been higher. 10.25 to 1 is CORRECT! Link to comment Share on other sites More sharing options...
studegary Posted October 1, 2019 Report Share Posted October 1, 2019 5 hours ago, mfg said: 10.25 to 1 is CORRECT! That wouldn't be happy with today's fuel and no computerized engine management. Link to comment Share on other sites More sharing options...
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