I have in stock one 331 Big Bore kit for $429.95 plus $13.00 shipping. And I also have a 308 Kit for $299.95 plus $13.00 shipping. Both kits are complete with ready to bolt on cylinders and piston kits with gaskets. The 331 kit is a Nikasil coated bore, and the 308 kit is a sleeved cylinder. Both are 11:5:1 compression kits. No core exchange needed.

Questions call me at 908-850-1955

Thanks!