Pay in 4 interest-free payments of $41.76 Learn more
Ships within 48 hours · Estimated delivery Aug 9 - Aug 14
A waiver and release of liability form will be emailed to be signed after purchase for any and all issues that may and can occur during dyno testing
This extra volume causes low-pressure zones attributed to low eng bog
May have small dents/scratches
Fits ONLY SP CNC cases
Piston Bore
Menace90 SS Stroker Engine Porting:Ported A waiver and release of**Built To Order. Please email and confirm delivery ETA before ordering** #1 FASTEST Engine in SoCal Races April 2025 The Menace90 SS Engine! 42mm Stroker Crank Upgrades: 52mm Bore x 42mm Stroke CNC Smolik Head Balanced Crank PGN 6202 Main Bearings Viton Crank Seals Specifications: Displacement: 90cc Bore: 52mm Stroke: 42mm Cylinder Material: Aluminum Nikasil HP: 10 12 hp Torque: 6 6. 5 ft lbs Peak RPM: 10,500 11,500 Top Speed: 55+ mph Oil Ratio: 32: