Serpent 902341 Aluminum Engine Monoblock Upgrade for M21  [SER902341]

One-Piece Aluminum Monoblock for M21 Engines

Machined from a single billet of high-grade aluminum, the Serpent 902341 Engine Monoblock is a practical upgrade for M21 engines used in Serpent 710 and 950 chassis. This stout unit adds a clean, professional look while reducing crankcase flex and keeping the engine better aligned with the chassis.

Cooling and Chassis Balance

Extra material and integrated fins on the monoblock help dissipate heat away from the crankcase, supporting more consistent running temperatures. The design also helps maintain a lower center of gravity so the car stays planted at speed. Precise machining preserves correct engine mount alignment, promoting smoother revs and longer component life.

Favoured by racers looking to tighten tolerances, this monoblock brings improved cooling and stability that helps get the most from M21 powerplants.