I agree with RRR, you've past the point of just cleaning it. Can you find a rebuild kit like PAW that will have everything you need? Then pick your best set of heads, hone the cylinders.
If you plan on running it for five more years.
I’m goin got do that....but not with this block. The older 68 block will be a better candidate for that. Even that block being worn out. It’s in about the same shape as this one.....it could even be run the way it sits with a slight refresh. I didn’t because of the heads not having hardened seats.
It does have more compression.....and quite a bit more power....250 I think.
But I don’t remember if that’s the heads or the pistons sitting higher in the block. Either way it’s like 9:1 and would be a good candidate for that 268 cam.
Could always put lead additive in I guess and throw a pushrod in there. It’s been sitting in grease for years. But when I looked at it the other day it was in the same shape as when I got it. I covered the insides with bearing grease
With this engine ....I couldn’t ....not take it down. It was so dirty inside and clogged up that all that garbage would have been really hard to get out otherwise. It would have dislodged all the sludge and hardened fuel particles and made it way worse rather quickly. I do regret going now this far into it but at least I know where it stands and what’s been done to it for some peace of mind.