I have a 20 bolt Real RJC girdle for sale. My motor had about 500 miles on it and i spun a rod bearing. I bought a short block with a girdle already on it, so I do not need this one. I will sell for $225 plus shipping. You will have to buy the peel away metal shims from RJC racing to have the correct clearances. I peeled a couple off mine to gain the clearance I needed.