1958 Motor mount nut inspection marks

[Justin B.]

Are early 58's supposed to have the orange swipes of paint on the 2 motor mount nuts? If so, is it Chevy orange?

[Frank P.]

Re: 1958 Motor mount nut inspection marks

Yes, they should be marked. Should be a dab of RED paint. Nail polish works fine.

[Jerry C.]

Re: 1958 Motor mount nut inspection marks

It used to be red and then changed to none and now they like orange.

[Gary C.]

Re: 1958 Motor mount nut inspection marks

What does the 58 AIM about say in regards to engine installation procedure? Gary....

This is what the 56-7 AIM Section 6 Sheet 6 says - and there's no mention of a torque inspection mark:
3. After assembling engine in chassis:
Tighten two lower L.H. frame bracket bolts. Tighten two upper L.H. frame bracket bolts. Insert shims on R.H. side as indicated on side member. Tighten two lower R.H. frame bracket bolts. Tighten two upper R.H. frame bracket bolts. Remove engine from locator and jack. (Weight of engine is now on front & rear mounts). Tighten R.H. mounting bolt nut to specified torque. Tighten the 4 transmission support crossmember bolts. Shake engine (to relieve strain on mounts). Tighten L.H. mounting bolt nut to torque specified.