I recently went to "hot import nights" in boston last weekend. Spoke with the eco tech crew chief for the nhra/nopi cars in the 7 sec drag car they use stock block crank and bearings.they use eagle rods and "custom pistons" they do resleeve the block lower the cubes to a 1.8 liter. Now ive seen a few ecotechs apart at my work and when theres a internal issue its not pretty. I've seen 3 eco techs now like a blown number 2 piston. just demoslished the piston and take the head out when it commits sucide. Just some food for thought.