Bolt Size??

[SS/GN]

Looking for the bolt dimension's for the water pump pulley and the bolts that hold the lower crank pulley to the balancer??
Thanks in advance

 

[Nick Micale]

A 5/16" bolt is used for both places, but the water pump is a fine thread, and the crank pulley is coarse thread.

The water pump is about 1/2" long, crank is 1" long.

 

[earlbrown]

The bolts that hold the pulley to the hub are metric. The bolts that hold the hub to the balancer are S.A.E.

On the water pump pulley they are fine thread S.A.E.

 

[Nick Micale]

It can be confusing with metric and SAE on the same part!

 

[SS/GN]

It can be confusing with metric and SAE on the same part!

Thanks Nick and here is the ARP part numbers in black oxide if anyone is interested.
Water pump ARP- 751-0560
Pulley to Balancer ARP 651-1000