M-Series Engine for Quarter Midgets
(Gear Box Not Included Unless Specified)

Building off the proven success of the Animal engine, the M-Series is the first dedicated racing engine engineered to meet the needs of the Quarter Midget market. Right out of the box, the M-Series is focused on the consistency and simplicity that racers deserve. Each engine is hand-built and tested at the Briggs skunk-works in Milwaukee, Wisconsin with the craftsmanship and quality we stand behind.

Model Number 124332 8203-01

Type 8203-01

Displacement 206

Bore 2.6875/2.6885

Stroke 2.2

Compression Ratio 8.5 to 1

Factory Timing 29 degrees BTDC

Also available fully blueprinted for QMA/USAC competition.

• Splined Crankshaft
• Factory Controlled Piston Pop-up
• Custom Control Plate to Better Fit Today's Cars
• Ground Cam with Custom Compression Release
• PVL™ 6100 RPM Limited Digital Ignition
• Studded Exhaust Port
• Fuel Filter
• Dual Ball-Bearing, RACING Reinforced Cylinder
• Squeeze-Cast, T-7 Treated, Racing Rod
• High-Silicon Valve Springs
• Racing Only Intake Port
• Walbro™ Round - Slide Carburetor
• Dana™ Fire-Ring Head Gasket
• Racing Crankshaft with Induction-Hardened Crankpin
• Federal Mogul™ Cam Ground, Barrel-Faced Piston
• Chrome-Faced, Racing Only Ring Package
• Nitrited Dished Exhaust Valve
• Automotive 3-Piece Valve Retainer System
• Beefy Rocker Arm Stud Nuts