Sleeving a 200

Matthew68

Well-known member
I just got a call from my machinist who has disassembled and assessed my 68 200 block. Cylinder #1 has a lot of ring damage that will necessitate either:

1. Overbore of 60 thou (30 for the other cylinders)
2. Overbore of 30 thou plus a sleeve for #1

He said it's also possible #6 will need a sleeve, but they won't know for sure until they bore.

Thoughts on sleeving? It’s fairly cost effective ($105/each). I can’t find any blocks near me for that price and even if I did there’s no guarantee that one won’t have issues. Plus I would be in more labor for disassembly and cleaning.
 
I agree with X. #1 cylinder is sometimes thin facing the water pump. Then .030" over pistons in all 6 cylinders.
 
2X the 2 above ( smarter move, cheepest now) BUT...
get all the info U can & keep safe.
ie how thick is the sleeve, how much bored to insert, what co, differences in hone or pistons, etc?

I hada Subie in late 70s I heard wuz OEM an alu block w/steel sleeves, nuttin wrong wid da design !
or
may B no block'n just sleeves? (butter? paper?)...
(y)
 
Back
Top