bring the .67, i'm sick of having one engine for my class...boring!!!!!! zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz, send them a greenhead and tell them to copy it, but change the color of the water jacket to something that makes sense (ops red was always cool)...parts should be interchangeable...lol
make sure they read jim allen's ideas on metallurgy in the previous thread .......nvm..here it is.... "The best material available for pistons is RSA-444 T6, 30% silicon aluminum. The best material for the connecting rod is AISI S-7 tool steel. The connecting rod needs a caged roller assembly. The best material for the cage is C-350 maraging steel. Rollers & crank pins can be made of M-2 steel. The crankshaft's best material is AISI S-7 with a separate pressed in M-2 steel crank pin."
otherwise, cost of a greenhead will be several thousand before you know it....FFS!