Slant 6 build date

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cjh

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G'day all.....I picked up a 225 slant 6 today, and was wondering if some-one could tell me what/when it was made.
I'm having a guess at 1968.....????
It still had a genuine water pump on it, and I had to put an ocky strap on it to stop it spinning......had a round trip of about 70 miles to go get it.
There wasn't any manifolds on it, just the dizzy, oil pump and pipes + filter mount, alternator + brackets, harmonic balancer, water pump + pulley + fan, fuel pump, and the rest on the back of it.
 

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interesting oil filter placement,,yellow color on block and the clutch fork is on the right side,, guessing it is either an early truck motor or from an industrial applicaton..

on the top deck of the block, just below #1 sparkplug there is a flat pad that extends out maybe a quarter inch and is maybe 2 inches long,, that is where the engine assembly plant stamped the build date, assembly plant ID,markers for us crank pins...
 
G'day all.....I picked up a 225 slant 6 today, and was wondering if some-one could tell me what/when it was made.
I'm having a guess at 1968.....????
It still had a genuine water pump on it, and I had to put an ocky strap on it to stop it spinning......had a round trip of about 70 miles to go get it.
There wasn't any manifolds on it, just the dizzy, oil pump and pipes + filter mount, alternator + brackets, harmonic balancer, water pump + pulley + fan, fuel pump, and the rest on the back of it.

Awfull clean motor. Someone has been in there before you.
 
interesting oil filter placement,,yellow color on block and the clutch fork is on the right side,, guessing it is either an early truck motor or from an industrial applicaton..

on the top deck of the block, just below #1 sparkplug there is a flat pad that extends out maybe a quarter inch and is maybe 2 inches long,, that is where the engine assembly plant stamped the build date, assembly plant ID,markers for us crank pins...
if the OP is from Australia, and it looks like he is, that oil filter and clutch fork would be normal
 
Awfull clean motor. Someone has been in there before you.

It isn't clean at all.....thats grey oily crap, not clean cast iron like it looks in the photo....LOL.
I had sprayed it with Inox ( like WD40 ) to soften up the crap.....so that may contribute to the "clean" look too.
 
I pulled the head off it today.....3 valves were/had been open....:(
I have it soaking with Inox at the moment.....then I'll buff the rust out of the bores to ease out the pistons later.
 

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"that oil filter and clutch fork would be normal"

agreed,,

that wide area on the tappet rail, towards the front end of the block are where the factory engine assembly stampings reside...
 
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