Markings on head bolts?

[Paul Rose]

I am doing the engine in a 1960 270 HP. I do not have the proper head bolts. what type of head markings should be on the bolts? Thanks.

[Dale Pearman]

Re: Markings on head bolts?

Usually Michigan Screw Products, an "M" with a circle around it. Other head bolts of the era are also aceptable. I've seen "U" within a circle as well.

Dale.

[andy#34338]

Paul, Same bolts Chevy's of that vintage

Paul,

You may be able to get the bolts from another Chevy of that vintage. Many of the passenger cars were not modified and still have the orig bolts.

Andy

[Paul Rose]

Thanks for your help! *NM*