3rd Gen / L98 Engine Tech 1982 - 1992 Engine Related

Block Numbers

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Old 09-03-2003, 05:38 PM
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Block Numbers

i found my block number but can't identify the motor, here is the number.behind the drivers side valve cover.
3970010
thanks!!!!
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Old 09-03-2003, 06:00 PM
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from www.mortec.com

3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4



odds are that it is a 350 from the 70's


if you can figure out the date code, it will tell you more
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Old 09-03-2003, 08:50 PM
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Thats a really common 350 number. Like already stated its doubful you got the 302 lol.

Most of them Ive found, and matched the engine suffix and everything came out of mid 70s low power vettes.
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Old 09-03-2003, 09:10 PM
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is there anything else i could find on the block to find out for sure that it is a 350?
also what does 4 bolt main mean?
is that the main mounting bolts?
thanks
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Old 09-03-2003, 09:25 PM
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also what is the engine suffix?
usually i think its 3 letters
i only found numbers?
thanks
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Old 09-05-2003, 08:35 PM
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how could i identify anything else to find out if its definetly a 350? also if its a 2 or 4 bolt main?
thanks
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Old 09-05-2003, 08:49 PM
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THe engine suffix is 3 letters.

To get the engine suffix. Look at the block, right in front of hte pasenger head. May have to remove your alternator or AC compressor to get to teh number. ANd you will probbaly have to wipe off grease to be able to read it.

There will be a string of letters and numbers. the engine suffix is the last 3 digits. Should be all leters.
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