The motor contains a solid crankshaft, pistons, and cast connecting rods, that makes the engine very resilient and effective at withstanding superior levels of pressure. I found a engine by this site. It is actually simple to use and simple to slim your quest right down to the exact spec https://toyota-mr2-celica-3sgte-e97531.wizzardsblog.com/37722316/toyota-mr2-celica-3sgte-engine-things-to-know-before-you-buy