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  #16 (permalink)  
Old 03-16-2011, 05:30 PM
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Most street rods ( or HOT RODS ) including my pair of 1932 Fords ... are a combination of parts sourced from different places. A engine from here, a transmission from there and a rear end from a entirely different source.

A lot of the engines are done the same. A block from 1 source, heads another and a intake from the aftermarket. The 010 block is a very popular block casting number. It has a 4 inch bore. Different crankshafts will give different cubic inch displacements.

A 010 block with a 3 inch stroke crank = 302 cubic inches
A 010 block with a 3.25 stroke crankshaft = 327 cubic inches
A 010 block with a 3.48 stroke crankshaft = 350 cubic inches
A 010 block with a 3.75 stroke crankshaft ( with .030 over bore ) =383 cubic inches

That is WHY the ENGINE ID/VIN CODE number is so important in determining what the original application was.


This this taken from the Corvette Magazine ( March 2000 )
GM had numbers on their distributors ... like this



1957 through 1974 all cast iron non dual-point distributors used a small aluminum band, which wrapped around the top of the distributor. All 1957 through 1961 dual-point distributors used the oval Delco-Remy riveted tag. This band was imprinted with the model number and production date. Fuel injection distributors from 1957 to mid-1958 used a Delco tag identical to other distributors. Starting in mid-1958, the fuel injection distributor was redesigned and was produced with a square tag that was held to the main distributor housing by four screws. Late model aluminum distributor housings have the model number roll stamped right into the exterior of the housing with no attaching tag of any kind. Date code stamps are near the model number. The location varies from year to year. On early distributors with a riveted metal tag, the date code is above the word "Serial."

Yours may or not be a GM distributor. A lot of the dual point ones are aftermarket

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  #17 (permalink)  
Old 03-16-2011, 05:49 PM
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Quote:
Originally Posted by sscardino
Thanks for the info. Your right, I have he same trouble on the running gear. And, obviously the motor.

SS
You are making the engine harder than need be. One last time- SUFFIX CODE.
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Old 03-16-2011, 08:25 PM
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Quote:
Originally Posted by ericnova72
What are the codes stamped on the pad right in front of the passenger side head, on a flat pad that sticks out from the deck surface just above the passenger side water pump leg mounting position??

As you have found, the casting code only gets you so far, now you need to research the stamped application code to define what you have.
The code on the front of the block is K02 20 CMJ, and the partial vin is 151448823.
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Old 03-16-2011, 08:40 PM
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Quote:
Originally Posted by MarkRacz
The code on the front of the block is K02 20 CMJ, and the partial vin is 151448823.
CMJ:

'75 350 Impala 145 L-65 TH 350 2-Brl A.I.R.
'75 350 Chevelle 145 L-65 TH 350 2-Brl A.I.R.

There are two other suffix "CMJ" engines, but they're later than an 010 block could be. One is a 305, the other is a 1 piece rear main seal block:

'80 305 Impala 155 LG-4 TH 350 4-Brl
'91 350 Cadillac 185 L-05 700R TBI

It's always best to use all the info available to you- the date code, the casting number and the suffix, along w/all the visual cues and measurements.

BTW, the "K" is for St. Catherines, Ontario (McKinnon Industries Canada), the "02 20" is for February 20th.

Another site lists the CMJ as:

CMJ 1974 350 TH4OO police 4bbl full size

This is why the date code can help.

Last edited by cobalt327; 03-16-2011 at 08:47 PM.
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Old 03-16-2011, 08:41 PM
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Quote:
Originally Posted by MarkRacz
The code on the front of the block is K02 20 CMJ, and the partial vin is 151448823.
CMJ is 1974 350 cubic inch engine, full size car application, 4 barrel carb, TH400 transmision. Could be 2 or 4-bolt main, but the 4 barrel and TH400 trans indicate a good possibility it will be 4-bolt as it would be a heavy duty application.

Info from nastyz28.com
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  #21 (permalink)  
Old 03-16-2011, 08:46 PM
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Quote:
Originally Posted by ericnova72
CMJ is 1974 350 cubic inch engine, full size car application, 4 barrel carb, TH400 transmision. Could be 2 or 4-bolt main, but the 4 barrel and TH400 trans indicate a good possibility it will be 4-bolt as it would be a heavy duty application.

Info from nastyz28.com
Thanks man, ive been trying to figure out what it was for a while now. And now that i know what engine it is i can build it, then for the fun part... Figuring out what im gonna put it in
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  #22 (permalink)  
Old 03-16-2011, 08:52 PM
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Quote:
Originally Posted by MarkRacz
Thanks man, ive been trying to figure out what it was for a while now. And now that i know what engine it is i can build it, then for the fun part... Figuring out what im gonna put it in
Without looking at the date code, you still do not know what you have- not that it matters AFA rebuilding the engine goes- it's a 4" bore Gen I block. Build it to match the stroke.
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