175 Engine Cases

[61rover]

How compatible are engine cases from 1974 on?  I'm having my late '74 cases vapor blasted to see the extent of the corrosion.  There is some.  Are the next few years roughly the same or not?

John Crouse
74.5 Jackpiner 175

[G Ellis]

Yes all the same 74 to 80.

[61rover]

Thank you Gary.  We'll see what the blasting reveals.

John Crouse
74.5 Jackpiner 175