new power plant on stand

Mables 400 with motor date code of A060 and head code of L189...... hehehehehehehehehehe.......
so the mill was made in 1970, the heads are 1969 with factory 10.1 compression, although these are #16 heads, so they have the "smaller" valves..... ;-)
This motor will stay on the stand for a while, waiting on an Eagle stroker kit....... 461 anyone? she'll be bad!