The block says 3970010 and the heads say 333882 with GM10 on one and GM3 on the other.
Passenger side of block has 5J9 and AZDN.the flywheel end has 010 978.It has small spark plugs (5/8 Socket).Dipstick on drivers side.Distributor pickup has #1875990 4J57. If I'm missing any #'s let me know.What do I have here?

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68 Camaro Coupe(restoring)
65 Pontiac Parisienne Convertible Summer Cruiser(Canadian version of Bonneville)
52 chev sedan

Thewebb, I looked those up at the MORTEC site - http://www.mortec.com/castnum.htm

Engine:
3970010....350...69-80...2 or 4 bolt
Heads:
333882.....74-80...350/400......76cc chambers

Do you know what it came out of?



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Joe
1969 Camaro - The Hole-y Grail Project
HwyStar@Rochester.rr.com
HwyStar's Garage! (http://www.geocities.com/hwystarjoe/index.html)
1970 Malibu (http://home.rochester.rr.com/hwystar/page2.html)

Hi HwyStarJoe Thanks for the info. I don't know what it came out of but I found the vin#. It reads T64501396 KO9 26 TYU. Does that tell you anything? It is a 4 bolt because I pulled the pan.
I read that those heads are for non leaded gas and are prone to cracking around the exhaust seats. Is this true?
I also read that "some of the smallblock motors used blocks with an additional 1% tin and an additional 2% nickel......These are very desirable blocks can be identified by looking at the block face under the timing chain cover for "010 and 020". these designators can also sometimes be found on the rear face of the block inside the perimeter of the bellhousing mating surface"
I found a 010 on the rear face of my block. What's your take on this?

[This message has been edited by thewebb1 (edited 02-11-2003).]

It's a '76 350/165hp truck engine made at McKinnon Industries (Canada), out of a truck made at Scarborough, Ontario. The "010" by itself means the block was cast with 0.1% more nickel than the standard block, which was supposed to create a harder finished bore surface.

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JohnZ
CRG
'69 Z28 Fathom Green