Bolt thread sizes [Archive] - Chevelle Tech

: Bolt thread sizes


FlameOut
Jun 10th, 08, 2:21 PM
Would anyone happen to know the correct length and thread size for the 3 crank pulley bolts and the 4 waterpump/fan attaching bolts for a 67 BB? The AIM only shows part numbers

Mike
Jun 10th, 08, 2:32 PM
Post the PN's ,it easier to look them up that way.

FlameOut
Jun 10th, 08, 2:56 PM
From page A4 of the AIM, it lists the fan bolts as #9425391 and the crank pulley bolts as #9418822. Also lists lock washers numbers, but I have a ton of them

Mike
Jun 10th, 08, 3:32 PM
Guess my Standard Parts Catalog is too old ,those arn't listed.
Part number replacement catalog does show 9418822 replaced by 9427321.
9425391 shows used with 2 15/32" spacer.
See if anyone has a later edition 8.900 catalog.

bones454
Jun 10th, 08, 4:37 PM
the crank pulley bolts should be 3/8" fine thread

Georgia69
Jun 10th, 08, 5:43 PM
I think the pulley/fan bolts are 5/16" - 24 X 3/4