I also have have good luck with PB Blaster. I pull the plugs and put about 3 or 4 ozs in the hole with a funnel. Ussally takes a couple days and they come loose. After its loose drain the oil, as thats were most of the blaster goes, and you dont want to pump it though the motor.


Jeff
1947 Chevy 6400 2-ton
In the Gallery
1953 3/4-ton
In the Gallery
It was fun while it lasted