1977 GMC Sierra C25/1984 Chevy Custom Deluxe C10

[Bruce's]

74-75 were the years the Hei became standard on gm's ,they were and are a very trouble free system once they figured out they required 8 mm plug wires which was almost as soon as they hit the market .
I am surprised somebody bothered to install the rocket into a former chevy small block truck ,frame mounts ,tranny ,and lots of other stuff is different so it had to be swapped .I used to remove a ton of the old 350 diesels from these trucks ,and install rockets in them as they were a bolt in including the tranny and mounts because the engine was a 350 olds block converted to a diesel .I don't see how the financials could work out ,other than if the previous owner already had a swapped diesel truck in the yard and was bored one afternoon .

[Darkrider]

Originally Posted by cheesy

That looks like a Chevy C-10 should from that era.

I had an 84 Suburban Silverado that was the ugliest, nastiest, rustiest thing on wheels. Yet, it ran perfect and was one of the most comfortable riding vehicles I ever owned.

Yea thats the messed up thing about this truck...it rides better then my '02 Honda Odyssey

Originally Posted by Bruce's

Have you thought about replacing the temp sensor with one for a 1984 chevy truck with a gauge ?

Originally Posted by Weldangrind

Exactly what I was going to say.

That may work...all depends on if the sensor will fit the hole in the intake..

Originally Posted by Weldangrind

I can't be certain, but I thought that all GM distributors after '74 were large-cap HEI. That is, until the late '80's TBI engines.

I had an ugly old G-body Buick that I installed gauges in stock pods. The difference was there were no gauges in those spots to begin with. I didn't care how well they matched, so I installed Princess Auto units that I got for cheap. Even a tiny tach.

Good score on the sheet metal! I see that the radio even gets AM.

I will probably eventually remove the stock temp,oil pressure and voltage gauges and do what i seen on a couple sqarebody truck forums and that is block off the speedo and fuel gauge with some metal to stop light from bleeding out behind the new gauges and just fit some new 2 1/2" gauges into the holes on the dash bezel...and at the same time more then likely add a small tach to the cluster in the process

Originally Posted by Bruce's

74-75 were the years the Hei became standard on gm's ,they were and are a very trouble free system once they figured out they required 8 mm plug wires which was almost as soon as they hit the market .
I am surprised somebody bothered to install the rocket into a former chevy small block truck ,frame mounts ,tranny ,and lots of other stuff is different so it had to be swapped .I used to remove a ton of the old 350 diesels from these trucks ,and install rockets in them as they were a bolt in including the tranny and mounts because the engine was a 350 olds block converted to a diesel .I don't see how the financials could work out ,other than if the previous owner already had a swapped diesel truck in the yard and was bored one afternoon .

What im suspecting happened is that one of the previous owners did something just like that...possibly because this truck was in better shape then the swapped diesel at the time...because the original story on this truck was that it was a swapped diesel one.