This is a generic small block 289/302/351W water pump bolt set they are not concourse correct
But good Enos replacement

The kit comprises of the following
8x 5/16 flat washers
1x 5 inch bolt
3x 3 1/2 inch bolts
4x 1/1/2 inch bolts
All bolts of 5/16 UNC


There are many types of water pump bolts this is the most common if you have power steering air-conditioning one or two bolts may be different we also sell these bolts separately but you would need to know the length required