Are You Bored With The Typical 196 & 212cc Builds? Want to lay The Smack Down On Your Buddies this Year?  This is Tillotson's New 72mm Reinforced Block With A 2.835 Three Ring Cast Flat Top Piston, ARC Billet long Rod, And 55 mm +.040 Stroker Crank. Assembled with Premium Case Bearing And Seal. Build it Yourself or Have It Professionally Hand Assembled In house to Spec.