Getting lower pulley to bolt to dampener?

[LovetheA's]

I’ll tell you what everyone. When you are learning how to do everything on your car wow is there a lot of roadblocks and stumbles. So I’m trying do something very simple. Just bolt my lower pulley to my dampener so that I can run my alternator. Well I can’t find the bolts that originally held the pulley on. So I though I’ll just go down to my local true value and buy correct size bolts. Well after two sets of bolts I still can’t get the pulley to seat correct because when I put the dampener back on I’m sure it had these spacer washers on it. Well they prevent me from being able to get a socket far enough on the bolt to really get it tight. Is there a special bolt head that is used or is one of the large washers incorrect?

 

[oldkimmer]

U only use the outer washer. Kim

 

[toolmanmike]

Don't quote me but didn't Ma Mopar use 7/16 headed bolts? Almost like header bolts? @oldkimmer

 

[oldkimmer]

No they are 1/2 in. 5/16 bolts. U could use a header bolt. Kim

 

[LovetheA's]

I was also possibly thinking instead of taking the dampener bolt out to remove one of the washers I could use a header type bolt. I was looking at the ones I have but the size of the threaded portion is one size too big. If I could find a header type bolt the size of the holes it would work.

 

[LovetheA's]

Thanks for the info.

 

[oldkimmer]

The header bolts for the small block will work. They are 5/16. Kim

 

[Demonracer]

I use 5/16 socket head bolts on my bracket car.

 

[RedFish]

Allen head bolts will work

 

[MoparMike1974]

Originals were just a 5/16 bolt with a captive lock washer.

 

[69FBCuda]

Washer keeps the bolt head out far enough so you can keep the socket on it

 

[MoparLeo]

When buying "hardware store" fasteners for your car, try to find at least grade "8" rated bolts. You are not working on a BBQ ....