Tech / General EngineIs your car making a strange sound or won't start? Thinking of adding power with a new combination? Need other technical information or engine specific advice? Don't see another board for your problem? Post it here!
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Why yes! take your rocker arm cover off and there will be a code stamped. The code is called the head casting number, don't get it confused with the engine cast number.
Look there for where the casting numbers are. Then look on google for chevy head casting numbers and try to decode it. There should be a prefix or suffix like TVW or something to help. I found out that my 83 camaro had a 1978 350 Truck engine.
Hope that helps.
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1983 z28 Camaro
'78 355ci all forged
700R4 with shift kit
10 Bolt 2.74
Silver paint, Black-Grey interior
Last edited by TheMonster; 06-25-2009 at 04:41 PM.
The suffix number is part of the VIN and it's not under the rocker cover.
Look on a pad in front of the passenger side head. There will be a bunch of stamped numbers. They're usually hard to read but those numbers can tell you what the engine is originally out of.
Casting numbers only give to a rough idea about the item. The same casting number can be used over a number of years and different models.
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Hardtail Racing
All engine, no power adders! Bests: 9.029@150.45 (at altitude)
Theoretical sea level performance 8.623@157.05
CEF10813 should match the last digits on the car's VIN
C = 1982
V0919FDF
V = Flint engine plant
0919 = Sept 19
FDF = ?
I don't see an FDF suffix code. Recheck the letters. They're not always stamped into the metal good enough to make a good imprint. F could really be a E or a P etc.
The easiest way to determine if it's a 305 or 350 block is from the casting number. The blocks are not interchangeable so if casting number says it was a 305 block, there's no way it can be a 350 engine. 302, 327 and 350 share the same 4" bore castings. In the later years, only a 350 has a 4" bore casting. It's easy to tell someone the engine is a 350 when it's really a 305. Externally, they look identical. Only casting and VIN numbers will determine what it really is.
The casting number is on the engine bellhousing behind the driver's side head. With all the wiring etc in the way, this is sometimes even harder to read. There may also be a 5.0L or 5.7L cast into the side of the block.
I find suffix codes on 3-4 different sites. Google "GM suffix codes" will point you to some of them. Same for VIN and engine decoding.