Our S2000 motors are rebuilt from top to base with new Piston rings, major & rod bearings. Head is machined & block is honed right before shipment. If the engine is defective, JDM Alliance LLC. will either deliver a alternative engine or challenge a refund minus the delivery expenses. 3. https://jdm-honda-cr-v-k20a-engin24185.blogadvize.com/39910115/jdm-engine-4age-blacktop-for-sale-an-overview