- Joined
- Aug 29, 2010
- Posts
- 47,128
- Reaction score
- 9,299
- Location
- OKC, OK
- First Name
- HotRod
- Truck Year
- 85 K20 LWB
- Truck Model
- Silverado
- Engine Size
- 454 - Turbo 400 - 3.73
This is that motor I pulled from that kids truck a couple years ago and it ended up getting moved to my dads. Well, he didn't cover it GOOD as I asked him to do, and it had come uncovered for a few months. I figured it was fuct. Sure wasn't turning by hand when I picked it up back week before last. Got a strong battery and pulled the spark plugs today. It struggled for a second and there it went and turned over. I pulled the plug just in case it had water in it. As some don't know, water doesn't compress and you can bend rods with water in cylinders since water doesn't compress. (A starter likely not strong enough to bend rods) But I wanted all the water blown out of it. No water came out of any of the cylinders. It never did push oil up thru the oil pressure port though.
Drained the oil thinking there would be some water in it. Nope, No water in the oil either but it only had a quart in it. Poured 4 quarts of used oil from my last oil change out of the C20. Cranked it over about 6 times and BAM, oil squirting out of the pressure port.
I never got to hear this run before I pulled it. But it does sound as if it's got some good compression and the guy told the kid it had an RV cam in it and the kid verified it ran real strong but he never got to drive that truck since it need the trans rebuilt which I also got the Th350/NP205.
The headers didn't fit a 4x4 for ****, and someone pounded one of the tubes almost completley closed to fit around something. And sumbish, I'm trashing them anyway. I coudn't even get 2 of the spark plug off without using an open end wrench. I'm not using **** like that. It I struggled with it that much, imagine how much I'd struggle if it were mounted in the truck? So I'll need to find some exhaust manifolds and I'm thinking I'd like to use those C20 manifolds off the 85 C20 scrap truck for this motor.
I hope to have a full compression test ran on it tomorrow. The battery I'm using is on trickle charge for tonight. I hope to fire that motor up soon and check the oil pressure and hope it's in as good of shape as the kid said it was supposed to be from the guy he bought the truck from.
Drained the oil thinking there would be some water in it. Nope, No water in the oil either but it only had a quart in it. Poured 4 quarts of used oil from my last oil change out of the C20. Cranked it over about 6 times and BAM, oil squirting out of the pressure port.
I never got to hear this run before I pulled it. But it does sound as if it's got some good compression and the guy told the kid it had an RV cam in it and the kid verified it ran real strong but he never got to drive that truck since it need the trans rebuilt which I also got the Th350/NP205.
The headers didn't fit a 4x4 for ****, and someone pounded one of the tubes almost completley closed to fit around something. And sumbish, I'm trashing them anyway. I coudn't even get 2 of the spark plug off without using an open end wrench. I'm not using **** like that. It I struggled with it that much, imagine how much I'd struggle if it were mounted in the truck? So I'll need to find some exhaust manifolds and I'm thinking I'd like to use those C20 manifolds off the 85 C20 scrap truck for this motor.
I hope to have a full compression test ran on it tomorrow. The battery I'm using is on trickle charge for tonight. I hope to fire that motor up soon and check the oil pressure and hope it's in as good of shape as the kid said it was supposed to be from the guy he bought the truck from.