[Sasquatch]

I'm getting a set of headers installed and would like to use locking header bolts. Does anyone know the size and thread pattern of the manifold bolts for a 69 472? Thanks.

 

[terrible one]

Take one to your local hardware store and have them make a match I knew it at one time but don't anymore.

 

[Sasquatch]

Terrible I KNOW that! Just thought maybe someone had the spec.

 

[Colt D]

Sasquatch, I thought all the bolt specs were in the shop manual. I remember from other posts that you have the 69 shop manual. If its not listed in yours, let me know, I can check my 68 manual.

 

[Sasquatch]

I did find this. Just wanted to cross check with others on the forum.

 

[terrible one]

The shop manual never lies.

 

[Innovator]

Be careful... those specs you listed are pipe to manifold, not manifold to head... In my '68 shop manual i have here

Exhaust Manifold to Cylinder Head Screw (3/8)-16 * 2(1/8) @ 35 ft.lbs.

I found this under section 6, Engine Mechanical.