In-Block Combustion Chamber uses aluminized oversize valves with zero- lash hydraulic lifters; gives longer valve life, better intake and exhaust action, and smooth even combustion.
3-Stage Cooling circulates coolant in three stages: (1) to intake manifold and cylinder heads; (2) to block; and (3) to radiator. Provides fast starting warm-up and progressive temperature control utilizing three thermostats.
Fuel System Advances feature exclusive preheated carburetor air system and water-jacketed intake manifold to keep the fuel-air mixture at proper temperature for maximum combustion efficiency.
This is a set that I found on e-bay a while back. I have not come across a vendor that services them. The members at the LCOC Board leave them out regularly and I have heard no adverse comments. The diverter(s) is more important as it directs coolant to the heads and intake and that coolant heat is needed for the carb pad warm up as there is no heat riser provision engineered into the MEL engine.
