Starting my first build - 1966 C10

[padresag]

""It was a Utah truck until a few years ago, and it still is pretty rusty in places - but the frame and everything else is in great shape - well, that is, before I spent some time lying beneath it changing oil. Truck looks like it was hit fairly hard in the front end and had to have the doghouse replaced. Frame rails ahead of the front suspension crossmember are hosed - need to take it to a frame shop and see what they have to say about it. Truck goes down the road good - but the bed looks a bit tweaked. All-in-all, it is a 43 year-old truck, and **** happens. Hoping the frame is fine or can be easily fixed - I will probably cut out the bent parts and weld in new frame rails ahead of the engine.""

that more than likely explain the GMC grille
ron

[Scot_Douglas]

Originally Posted by jgh64pkup

so its a standard bore 383
okay you will need to use a 400 balancer and flywheel

LOL, I knew that. Actually, looks like I'm going to use one from a 454 and my machinist will alter that one to work (it is also externally balanced)

Originally Posted by padresag

that more than likely explain the GMC grille
ron

Hey Ron - I love that GMC grille.

[Captainfab]

Originally Posted by Scot_Douglas

LOL, I knew that. Actually, looks like I'm going to use one from a 454 and my machinist will alter that one to work (it is also externally balanced)

Since you're having it balanced, you can start with a regular internally balanced flywheel......that is unless you already have a 454 flywheel.

[Scot_Douglas]

Well, today I started to tear down the engine I bought - these are the specs that were listed:

The motor is a 377-CID stroker combination :
- 350 block STD bore and a 400 crank machined to fit the 350 journals.
- 5.565" rods and STD 350 pistons
- 4 bolt main block with fresh cylinder hone
- Hydraulic flat tappet cam, 224 Int/ 234 Exh @ 0.050" lift
- All new bearings and gaskets.
- Heads are GM 882 casting with mild port and polish job,76cc. 9.5:1 compression, with 2.02/1.60 valves
- Intake is gasket matched to the heads
- Engine is painted blue
- Intake is powder coated oxide red

I'm much more versed in rebuilding motorcycle engines, but I don't think a few things are right...

These "new bearings" sure look funny...


Must have used a different gasket to do the matching...


I got cheated on my dial gauge! Clearly, I have 2.02" intake valves, but my calipers must be off...



Something for no extra charge!


These must be for improved oiling:



Sigh. What a BLEEPING mess. "Fresh hone" must mean knocking down the ridge until you go through a set of stones.

I bought this engine from someone that bought it from someone else that traded something for it in the beginning - so, I'm not about to go trying to get my money back. Looks like I'll have a bit more work to do.

I haven't plastiguaged the mains yet - just the four of the rods... and they are from 0.007 to 0.03. (that's NOT a typo). I hope to hell the mains are in spec and I can get away with having the crank cleaned up and the rods resized - though who knows what else is hosed with this damn thing.