GM C5R 7.0 GM Race Block

The ultimate foundation for any LS1 high performance engine build up. GM cast race case machined for wet sump operation. This is the same casting used in the Corvette C5R race cars, with the addition of bay-to-bay breathing and all operational oil supply galleys. Designed by GM to have a 4.120" bore from the start, with a maximum of 4.130".

Call to order.