- Joined
- Aug 3, 2010
- Posts
- 30,445
- Reaction score
- 28,348
- Location
- Usually not in Ohio
- First Name
- Andy
- Truck Year
- '77, '78, '79, '84, '88
- Truck Model
- K5 thru K30
- Engine Size
- 350-454
I melted a Piston, 250 Inline 6.
- Thread starter jjester6000
- Start date
Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
DoubleDingo
Full Access Member
- Joined
- Jul 3, 2012
- Posts
- 11,250
- Reaction score
- 17,177
- Location
- Right where I am
- First Name
- Bagoomba
- Truck Year
- 1981
- Truck Model
- 81-C20 Silverado Camper Special-TH400-4.10s
- Engine Size
- Carb'ed Vortec 350
I like the 250 route as well. Then he's back on the road quicker, has the same setup as before, and has an extra 250 that he can rebuild and have as a backup just in case.
- Joined
- Oct 27, 2016
- Posts
- 2,508
- Reaction score
- 6,486
- Location
- MO
- First Name
- Spencer
- Truck Year
- 1971, 1̶9̶7̶4, 1976, 1979,1̶9̶8̶5, 2002
- Truck Model
- Dart Swinger, Sierra 10, C10 Cheyenne, C10 Big Ten, Silverado 10, Ram 2500
- Engine Size
- 225/6, 350 c.i., 350 c.i., 5.9l Cummins
I like sixes, I say if you happen to run across one, a 292 would be an excellent little upgrade, or paint a Ford 300 six orange and most probably wouldn't even know... or just stick with a 250 and do basic hop up
Memaloose
Full Access Member
- Joined
- Dec 2, 2018
- Posts
- 544
- Reaction score
- 1,595
- Location
- Dolan Springs, AZ
- First Name
- Tony
- Truck Year
- 1975
- Truck Model
- K20
- Engine Size
- 350
I had a 250 in a '81 Custom Deluxe that #1 piston went bad. I was driving down the highway at 60 mph and all of a sudden, there was a noise like a compression release being engaged. I didn't have a clue what the problem was but limped it home for 60 miles doing about 45 mph. When I got it home, I did a compression check as it sounded like a valve had burned up and found 0 psi on number one cylinder. I pulled the head and saw #1 piston had a hole dead center approximately 1 " in diameter. I dropped the pan, pulled the rod/piston assembly, checked for damage, there was none, bought a new piston, rings, con rod, bearing, checked clearances, reassembled and ran it another ten years before I sold it. Never had another problem with the engine at all.
Rusty Nail
Full Access Member
- Joined
- Jan 29, 2015
- Posts
- 10,041
- Reaction score
- 10,134
- Location
- the other side of the internet
- First Name
- Rusty
- Truck Year
- 1977
- Truck Model
- C20
- Engine Size
- 350sbc
You could probably take the rocker arms off of it and keep goin.
OP
i bet money you could.
Run a Inline 5.
the only real reason it runs bad is because those valves continue to operate.
try it and see for yourself
OP
i bet money you could.
Run a Inline 5.
the only real reason it runs bad is because those valves continue to operate.
try it and see for yourself
AuroraGirl
Full Access Member
- Joined
- Sep 8, 2019
- Posts
- 9,693
- Reaction score
- 6,869
- Location
- Northern Wisconsin
- First Name
- Taylor
- Truck Year
- 1978, 1980
- Truck Model
- K10, K25
- Engine Size
- 400(?), 350
wouldnt he need to balance the crankshaft externally?
Rusty Nail
Full Access Member
- Joined
- Jan 29, 2015
- Posts
- 10,041
- Reaction score
- 10,134
- Location
- the other side of the internet
- First Name
- Rusty
- Truck Year
- 1977
- Truck Model
- C20
- Engine Size
- 350sbc
Naahh... no other changes because it's inline, not a "V".
The valves operating kill the engine vacuum and waste gas gas gas gas gas gas gas gas gas
I'd be interested to know the MPG change and guarantee this will be a noteworthy result for little effort AND IT's FREE.
we could maybe learn something if he'd do it..
Find out for yourself jester. (I think he ignores me though) lol
The valves operating kill the engine vacuum and waste gas gas gas gas gas gas gas gas gas
I'd be interested to know the MPG change and guarantee this will be a noteworthy result for little effort AND IT's FREE.
we could maybe learn something if he'd do it..Find out for yourself jester. (I think he ignores me though) lol
Last edited:
SDJunkMan
Full Access Member
- Joined
- Nov 17, 2017
- Posts
- 1,809
- Reaction score
- 2,656
- Location
- Black Hills of South Dakota
- First Name
- Jeff
- Truck Year
- 1978
- Truck Model
- K10
- Engine Size
- 350
I actually did that on a Ford 300 that broke a rocker stud on a road trip from New Orleans to Detroit in the middle of the night. Pulled the pushrods and plug on the bad cylinder and drove it several hundred miles. Replaced the head when I got to Detroit, and everything was fine. Of course I didn't have burned up piston particles floating around in the oil.
DoubleDingo
Full Access Member
- Joined
- Jul 3, 2012
- Posts
- 11,250
- Reaction score
- 17,177
- Location
- Right where I am
- First Name
- Bagoomba
- Truck Year
- 1981
- Truck Model
- 81-C20 Silverado Camper Special-TH400-4.10s
- Engine Size
- Carb'ed Vortec 350
The smart move would be acquire the other 250, and install it. It's nice having a spare engine laying around that is apples to apples what you have in it already.
Rusty Nail
Full Access Member
- Joined
- Jan 29, 2015
- Posts
- 10,041
- Reaction score
- 10,134
- Location
- the other side of the internet
- First Name
- Rusty
- Truck Year
- 1977
- Truck Model
- C20
- Engine Size
- 350sbc
One of my two auto mechanic MENTORS from back in the day has or had a 1965 c10 with a 6 in it that ran as a five forrrrrr maybe five or six YEARS. All he did was pull the rockers and pushrods - kept goin.
I KNOW it'll work.
I KNOW it'll work.
Last edited:
Memaloose
Full Access Member
- Joined
- Dec 2, 2018
- Posts
- 544
- Reaction score
- 1,595
- Location
- Dolan Springs, AZ
- First Name
- Tony
- Truck Year
- 1975
- Truck Model
- K20
- Engine Size
- 350
If I had been thinking, I would have. It made a horrible racket all the way home. You're never too old to learn. I'll remember that if it ever happens again, thanks!
jjester6000
Full Access Member
- Joined
- Aug 24, 2019
- Posts
- 882
- Reaction score
- 2,459
- Location
- Illinois
- First Name
- Jack
- Truck Year
- 1974
- Truck Model
- C1500
- Engine Size
- 250
I got the new 250.
It came from a '72 Nova and runs great despite being super greasy.
You must be registered for see images attach
It came from a '72 Nova and runs great despite being super greasy.
jjester6000
Full Access Member
- Joined
- Aug 24, 2019
- Posts
- 882
- Reaction score
- 2,459
- Location
- Illinois
- First Name
- Jack
- Truck Year
- 1974
- Truck Model
- C1500
- Engine Size
- 250
Naahh... no other changes because it's inline, not a "V".
The valves operating kill the engine vacuum and waste gas gas gas gas gas gas gas gas gas
I'd be interested to know the MPG change and guarantee this will be a noteworthy result for little effort AND IT's FREE.
Find out for yourself jester. (I think he ignores me though) lol
Maybe I should try fixing the piston with JB Weld, see how long it would run.
Rusty Nail
Full Access Member
- Joined
- Jan 29, 2015
- Posts
- 10,041
- Reaction score
- 10,134
- Location
- the other side of the internet
- First Name
- Rusty
- Truck Year
- 1977
- Truck Model
- C20
- Engine Size
- 350sbc
I dont think you'd ever get it clean enough haha.
Is it too late to try just for kicks? Take it out already?
Is it too late to try just for kicks? Take it out already?
jjester6000
Full Access Member
- Joined
- Aug 24, 2019
- Posts
- 882
- Reaction score
- 2,459
- Location
- Illinois
- First Name
- Jack
- Truck Year
- 1974
- Truck Model
- C1500
- Engine Size
- 250
You must be registered for see images attach
Here are some more pictures of the engine after we got it out of the back of my friends truck (and had a hernia).
You must be registered for see images attach
It came from a '72 Nova, and I don't even think that the valve cover has been off of this engine.
You must be registered for see images attach
It has the original carburetor and I think even the original plug wires.
You must be registered for see images attach
Similar threads
