There are many big block monster truck engines available on the market. But the least of them are as successful as the LRP Z.28R Spec.3 Pull start. Its wins are uncounted. E.g. it finished in first place at all Monster Mania events in the last years. With its 3.89HP and a maximum RPM of 33.500 this engine is ideally suited for monster trucks on every kind of terrain. The throttle response and the power band are specially optimized for trick jumps and races on off road tracks. Due to its compact construction the engine can be used as a direct replacement to the .21 and .25 engines. Features Specifications LRP .28 heavy-duty crankcase specially reinforced for tough Monster truck racing applications Reinforced conrod Performance-optimized 9mm slide carburetor with improved iding Optimized port timing Newly designed ports New Cool Down cylinder head With Power Start capability Specifications Number of ports 8+1 Exhaust Rear Bore 18.5mm Weight 450g Glow Plug standard style Cubic capacity .28 (4.59ccm) Piston CNC machine Crank case 28 Heavy Duty Crank shaft 13.0mm Cylinder sleeve ABC Max. RPM 33500 Max. Power 3.89 PS Carburetor 9.0 mm venturi
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