Volvo 7.4
#2
Registered
This may help
Volvo Penta 7.4 Gi vs GSi rev limiter - Page 2 - Offshoreonly.com
and from searching for 1997
7.4L Gi 1997-2001 4200-4600
7.4L GSi 1997 4800-5200
Volvo Penta 7.4 Gi vs GSi rev limiter - Page 2 - Offshoreonly.com
and from searching for 1997
7.4L Gi 1997-2001 4200-4600
7.4L GSi 1997 4800-5200
#3
Registered
I believe they also had different style intakes. The Gi had the stock GM truck intake and the GSI had the Merc style racing intake (like on the 500EFI).
Last edited by techman; 10-11-2021 at 11:40 AM.