Hard to say.Originally Posted by Skillz GT Blue
Lightened bottom end and balanced cost me a few hundred alone, but that was done... differently to how I believe yours will have been done.
Removing 1k from flywheel was about £60, balacing that with the crank was £45, the crank to lightened was about 100, reboring is £45, £15 for 45 chamfer on bores, planing another £20. Just to prepare the block costs about £125 to take new pistons.
What he would do was just clean everything old and refit it.
With new pistons your CR should be about 150psi+