Cylinder #7 down on compression
The plugs are NGK Power 4 I think. What do you recommend I use cause when I put the engine back together I will be replacing the plugs most likely. I did the leak down and #7 exhaust valve is the culprit. I got the head off today and brought it to a shop and he took the #7 valves out. The valve is worn very thin but was not burnt yet. He’ll have the head done probably next week. Said seals and
Retainers are good stuff and definitely itely not original. Pistons in car I. Need to clean up to have a better look but they do not look to be factory 70 340 pistons. Cam and lifters look to be in great shape too.