Yes its alum. I'm in the process (very tedious) on match machining the girdle/top of the main caps for dowels. All 14 have to align.
3/4 done but not a job I'd want to do again any time soon.

In between this working on a buddy's TJ to sort out how to put a 4200 in it instead of the 355 sbc he is thinking of installing.


51 GMC 4.2 turbo
Can't solved today's problems using the same technology/thinking that created them