• Produces 1000-1500 HP from a 600-800 HP base*
• Largest HP gains possible from adding a supercharger system
• Exclusive billet twin carburetor enclosure
• Features M-4 ProCharger and AW-504 Intercooler
• More power from a single ProCharger than from twin screw-type blower setups (two blowers per engine)
• Can omit carburetor enclosure for fuel injection
• 1-year warranty

*Cog drive system upgrade may be required above 1,200 HP

M-3 Intercooled ProCharger System

• Produces 700-1200 HP from a 450-650 HP base**
• Coolest charge air temperatures
• 1-year warranty (not affected by backfires)
• Features M-3 ProCharger and AW-504 Intercooler
• For use with single carburetor or fuel injection

** M-3 intercooled may require upgrade to twin carburetor enclosure above 1,000 HP

ProCharger Exclusives!

• Undisputed Maximum HP Gains on pump gas
• Greatest durability, best warrant coverage, least weight
• The only intercooled centrifugal system for carbureted applications
• Coolest charge air temperatures
• The only centrifugal available for single and twin-carburetor setups

454 and 502 Magnum engines are excellent candidates for supercharging. This is due not only to a moderate compression ratio, but also very rugged components: forged pistons, a steel crank, and a four bolt main. With an Intercooled ProCharger system, there is no need for internal engine modifications prior to supercharging, and power gains of 45-65% are typical with stock motors running pump gas. Aftermarket parts are also plentiful, and for modified applications, power gains can safely exceed 100% with operation on pump gas*. ATI has safely produced over 1,200 hp on modified Magnum and similar motors.

Although a poor candidate for roots supercharging due to the heat produced from roots blowers, 7.4 motors are excellent candidates for Intercooled ProCharger systems, producing large percentage gains with low boost levels. Although these are lower compression motors, intercooling is mandatory due to the use of cast pistons in stock 7.4's. The cast crank and 2 bolt main is sufficient for over 600 hp, but ATI recommends maintaining the factory redline for maximum longevity. There is no need for internal engine modifications prior to installing an Intercooled ProCharger, and power gains of 45-55% are typical with stock 7.4's running pump gas.

Due to higher compression, only intercooled systems are recommended for stock 350/5.7 motors. With an Intercooled Procharger system, there is no need for internal engine modifications prior to supercharging, and power gains of 45-55% are typical with stock motors running pump gas.

HP motors are Mercury's most rugged motors, and are excellent candidates for supercharging. With an intercooled ProCharger system, there is no need for internal engine modifications prior to supercharging, and power gains of 45-65% are typical with stock motors running pump gas. With lightly modified HP and similar motors, ATI has produced over 1,200 hp with an M-4 ProCharger (still covered by a 1-year warranty), with power gains exceeding 110% while operating on pump gas.