| Detailed Product Description Specifications:New 6.5L Chevrolet bare head casting. The last three digits of the casting number are 567. This is the latest head the was used on all the GM 6.5L Diesel Turbo and Non-Turbo Diesel engines. These are for Truck applications and the intake manifold bolts are at a 90 degree angle to the intake surface. They have a diamond pre cumbustion chamer. | 
