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Joined: Dec 2005
Posts: 6
Grease Monkey
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OP
Grease Monkey
Joined: Dec 2005
Posts: 6 |
The letters cast onto my '54 210 wagon's engine are:
CON2 A290.
Is this a 235 or a 261 engine?
Where do I find this info?
help
thanks
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The numbers are only date cast numbers.The block casting number behind the starter will identify the engine size.
The 261 engine will have two little I I cast into the side of the block above the starter.
Gene Schneider
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Joined: Dec 2005
Posts: 6
Grease Monkey
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OP
Grease Monkey
Joined: Dec 2005
Posts: 6 |
Chevgene:
???I don't understand...block casting number BEHIND starter.(is it visible from above without removing the starter?)
???II above starter. (is that eleven or ii?)
thanks for the assistance
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The I I are two raised marks about an inch tall.
The starter must be removed to see the casting number.\\What makes you think it could be a 261 truck engine?
Gene Schneider
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Joined: Dec 2005
Posts: 6
Grease Monkey
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OP
Grease Monkey
Joined: Dec 2005
Posts: 6 |
Chevgene:
The party I bought it from said a previous owner had put a crate engine with more cc's.
AND, indeed, there are two II cast above the starter.
I wonder what significant differences the 261 has?
It's a shame it isn't the orginal, but it is a strong engine.
thanks for the help
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Joined: Jan 2002
Posts: 30,701 Likes: 141
ChatMaster - 25,000
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ChatMaster - 25,000
Joined: Jan 2002
Posts: 30,701 Likes: 141 |
The 235 cubic inch engine has a bore of 3 9/16' and stroke of 3 15/16"
The 261 cubic inch engine has a bore of 3 3/4" and stroke of 3 15/16".
Due to the large bore there is no water cooling between the cylinders.
The carburetor on a 261 has a slightly larger throat.Other than that they are basicly the same engines.
It there a stamped number on the ledge (facing up)-side of the block behind distributor?.
Gene Schneider
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Joined: Jan 2002
Posts: 812 Likes: 13
ChatMaster - 750
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ChatMaster - 750
Joined: Jan 2002
Posts: 812 Likes: 13 |
A list of engine casting numbers can be found at http://home.znet.com/c1937/Cast.htm . The casting number on 54 235 & 261 engines is located in a fold under the fuel pump. Only 1937 Export engines have casting number behind the starter. I have two 53-54 261 engines. They do NOT have the "Captain Stripes" (II) as the 56 and newer 261s. If your engine has been replaced, does it have a 55-63 Water Pump? Was the radiator screwed on the wrong side of the brace to avoid the fan?
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Joined: Feb 2003
Posts: 89
Shade Tree Mechanic
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Shade Tree Mechanic
Joined: Feb 2003
Posts: 89 |
54Handyman:
What kind of oil filter you have?
Full or partial flow?
How did you mount the engine?
Which gearbox?
Mahar
51 Fleetline, 261, 3,55:1
94 Opel Omega 3,0
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