# Title Year Make Model Price Photo
1 700 HP Upgrade Mercury Racing Rebuilt 525 EFI 525 EFI *Core Required* 700 HP $17995
Upgrade your 525 EFI Mercury Racing engine to a 540! A true marine upgrade that's drop in ready to run. 700 Horsepower @ 5400 RPM 675 FT/LBS of Torque @ 4500 RPM Runs on 91 Octane with 9.20:1 Compres..
2 Mercury Racing Rebuilt 525 EFI 525 EFI *Core Required* 580 HP $12995
Refresh your 500 EFI Mercury Racing engine while adding a bit of horsepower! A true marine rebuild that's drop in ready to run. 580 Horsepower @ 5400 RPM 605 FT/LBS of Torque @ 4500 RPM Runs on 91 Oc..
3 500 HP Rebuild for Vortec 8.1 L 496 Vortec 8.1 L *Core Required* 500 HP, 496 CI $13995
Refresh your Vortec 8100 marine engine! A true marine rebuild that's drop in ready to run. 500 Horsepower @ 5800 RPM 575 FT/LBS of Torque @ 4800 RPM Runs on 91 Octane with 9:1 Compression Block: Vorte..
4 600 HP Upgrade for Vortec 8.1 L 496 Vortec 8.1 L *Core Required* 600 HP, 496 CI $18995
Upgrade your Vortec 8100 marine engine to 600 HP! A true marine upgrade that's drop in ready to run. 600 Horsepower @ 5800 RPM 650 FT/LBS of Torque @ 4800 RPM Runs on 89 Octane with 10:1 Compression..
5 540 CI Upgrade From a 500 HP Mercruiser 500 HP *Core Required* 540 CI, 595 HP $12795
Upgrade your 500 HP Mercruiser engine to a 540! A true marine upgrade that's drop in ready to run. 595 Horsepower @ 5200 RPM 665 FT/LBS of Torque @ 3700 RPM Runs on 89 Octane with 9.20:1 Compression ..
6 540 CI Upgrade From a 500 EFI Mercruiser 500 EFI *Core Required* 540 CI, 595 HP $12995
Upgrade your 500 EFI Mercruiser engine to a 540! A true marine upgrade that's drop in ready to run. 595 Horsepower @ 5200 RPM 665 FT/LBS of Torque @ 3700 RPM Runs on 89 Octane with 9.20:1 Compression..
7 540 CI Upgrade From a 502 Multi Port Injection Mercruiser 502 MPI *Core Required* 540 CI, 595 HP $12795
Upgrade your 502 MPI Mercruiser engine to a 540! A true marine upgrade that's drop in ready to run. 595 Horsepower @ 5200 RPM 665 FT/LBS of Torque @ 3700 RPM Runs on 89 Octane with 9.20:1 Compression..