ok i have an 85 supra /5m-ge...the balencer and crank are worn..im gonna fix..runs good i think i need injects too.. but a kid i werk with has a buddy that has an 84 / 5m-ge thats been bored out 30 over....all it needs is a head gasket..runs good for a blown gaset... other than that body is ok. one rear 1/4 is rot.. fixable.. oh ya delemma.. my car is loaded. ..leather, cruise didgital gauge....... the 84 not.. so should i git this other car and swap motors... he wants $600 bux.. he cant afford insurence no more.. and, has anyone bored out there engines ..worth it??? THANX