(K20a3)This engine has been taken apart @ 20,000. I blew cylinder 2 !The head is ok but the valves need replaced on number 2 piston port .The head also might need a cam shaft for that side also. The block is good but again piston head has small indent marks where the valves hit .The block is GOOD and the head only needs minor work. I want to sell complete but will part out as a last resort. Please make offers . I also have the intake manifold and all parts attached to it. I will be keeping some parts here and there but most will be sold !