[Keithc8]

The only aluminum block we can get right now is the Shelby block. A engine like this one above would run about 2000.00 more because of the cost difference in the blocks and the heads studs for the aluminum block are about 225.00 more than the ones for the steel block. Hope this helps a little. I did a quote for a Gentleman today for a engine similiar to this one but with a Shelby block and it was about 17,500.00 give or take a little. We have been getting some real good results with both blocks. Thanks, Keith