1963 UFO Posted October 25, 2022 Report Share Posted October 25, 2022 How do I tell if my 63 Avanti is 240 hp. or 289 hp. ? It is a R-1 automatic 4 barrel. But I see that the non Supercharger engine can be 240 or 289 ? Is that correct ? How much hp does the Supercharger add ? Thanks,Steve Link to comment Share on other sites More sharing options...
64studeavanti Posted October 25, 2022 Report Share Posted October 25, 2022 The R1 non-supercharged engine was rated at 240 h.p. with standard 10.25:1 heads. The R2 supercharged engine was rated at 289 h.p. Link to comment Share on other sites More sharing options...
1963 UFO Posted October 26, 2022 Author Report Share Posted October 26, 2022 Thank you sir ! Link to comment Share on other sites More sharing options...
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