66 C10 sbc 400 compression issue.

[sweetlil66]

Hello guys... Thanks for your time.

I just got a 66 c10 with a sbc 400. The truck has set for over 4 years??? but it was last tagged in 03. The last owner told me when he parked it he put trans fluid in every cylinder. He also said the engine had been rebuilt not along before it was parked.

Today I rain a compression check and got 120+ on al cylinders but 2
http://basic-help.blogspot.com/2010/...-on-chevy.html
When I pulled the plugs they did smell of trans fluid.

cylinders 3 and 5 only had 65+ (When I pulled the plug from 3 there was alote gunkish mudish stuff come out but did spell of trans fluid ***I didn not smell anti freeze***) (Number 5 had a lil but not near as much)
To me this screams blown head gasket

Since 3 and 5 are next to each other -The low compression makes me think the head gasket is blown between the two cylinders.



Iv had a few guys say the valves may not be sealing properly and that I should fire it up and let it run for a half hour and then see what happens.

What worries me is what and wear did this muddish stuff come from.

Any advice?