Can you tell / decode

[Croc1990]

I can' tell what the suffix code is.
It looks like c n r (or a p)
The r is upside down and looks like someone stamped on op of it.

I also can't figure out rest of the number (101164418)

You must be registered for see images attach

You must be registered for see images attach

You must be registered for see images attach

 

[hatzie]

101164418 is the engine VIN
1=Chevrolet
0=1970
1=Oshwa ON vehicle assembly plant
164418=Last six digits of the 13 digit vehicle VIN


K03 04 CN? is the engine code.

K means the engine was built in St Catherines Ontario Canada
03 04 = March 4th

CN?
? = E, F, or P

CNE is a 1970 A, F, or X body 307 with a PowerGlyde
CNF is a 1970 A, F, or X body 307 with a TH350
CNP is a 1970 B Body 350 Police Taxi engine with a 4 speed Manual Transmission

http://www.nastyz28.com/chevy-engine-code-stampings.php#suffix

 

[Croc1990]

Do you see the R at all?
Is there another way to confirm anything. I'm just curious

 

[twinturbo427]

Do you see the R at all?
Is there another way to confirm anything. I'm just curious

CNB and CNR are both 1970 350, but I wouldn't trust that block stamping without a VIN match to verify original vehicle. The last character looks altered, even for 1970 GM assembly line at beer:30.

 

[Keith Seymore]

Do you see the R at all?
Is there another way to confirm anything. I'm just curious

Maybe. GM of Canada has all the build records for vehicles either built in Canada or built in the US for Canadian sale.

http://www.vintagevehicleservices.com/options.html

They ask for the complete VIN, but since you have the numerical portion for a 1970 model year truck built in Oshawa maybe they would look it up for you. They return the complete option content for the vehicle, including engine RPO and build quantities.

K

 

[hatzie]

I would be willing to bet it's a 1970 307 someone was trying to pass off as a 350...

The 307 is a 283 with a 327 crank. Shorter stroke and larger bore than a 305. Not a bad motor actually. It has a fair amount of low end torque making it a pretty decent small V8 truck engine.

What's the block casting number behind the LH cylinder head? That should narrow down the displacement.

Is the block drilled and tapped for the Clutch Z-Bar pivot ball? Not definitive but if it's an un-molested 307 with those stamped numbers it prolly won't have the hole.

 

[Croc1990]

I'l have to check again had it on my old phone and I'll get it again tonight but when I checked out the back casting number it looked it came back as a 350
I' just curious because the po said that the p.o. before him swapped the motor with that of a Chevelle and I just want to make it easier on myself getting parts

 

[Croc1990]

That' the ŕpo sticker

You must be registered for see images attach

 

[Honky Kong jr]

I'l have to check again had it on my old phone and I'll get it again tonight but when I checked out the back casting number it looked it came back as a 350
I' just curious because the po said that the p.o. before him swapped the motor with that of a Chevelle and I just want to make it easier on myself getting parts

Chevelles came with 307s I had a 69 with a glide with one.

 

[hatzie]

Chevelles came with 307s I had a 69 with a glide with one.

I have to agree. If it was original to an A-Body then it's a 307.

You can check the crankshaft casting number as well but the block number should tell the tale fairly well.

 

[Croc1990]

Alrighty well I'll poke my head back there tonight take a peak. Either way as long as it moves the truck around I'll be satisfied. For now anyway

 

[TnSnapp]

I would be willing to bet it's a 1970 307 someone was trying to pass off as a 350...

The 307 is a 283 with a 327 crank. Shorter stroke and larger bore than a 305. Not a bad motor actually. It has a fair amount of low end torque making it a pretty decent small V8 truck engine.

What's the block casting number behind the LH cylinder head? That should narrow down the displacement.

Is the block drilled and tapped for the Clutch Z-Bar pivot ball? Not definitive but if it's an un-molested 307 with those stamped numbers it prolly won't have the hole.

Put some 305 closed chamber heads with the small valves and you would have a stump puller.

 

[Honky Kong jr]

Put some 305 closed chamber heads with the small valves and you would have a stump puller.

And that’s what you call **** on **** engine building lol

 

[Dougnsalem]

And that’s what you call **** on **** engine building lol

You must be registered for see images attach

Lol.

 

[Honky Kong jr]

You must be registered for see images attach

Lol.

That kinda reminds me of the demise of CONSOLE boy lol