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Username Post: Suffix identification for 94 Chevy 350/5.7LG        (Topic#254536)
Tom350 
Forum Newbie
Posts: 4

Reg: 12-18-10
12-18-10 05:33 PM - Post#2019927    

Hello . . . I need help on these two numbers V0414FWB and CRF524826VO414FWB:

V0414FWB "Engine ID": Hopefully someone can help. I’ve spent hours searching for what the “Suffix” “ of “FWB” is telling me about my engine, full engine ID Number stamped is: V0414FWB. I pulled this out of a Chevy Van but it is original to the van. I was told the engine came out of a 1994 Chevy truck. I would like to know what the “Suffix” is telling about the specs of the engine.

CRF524826: Also, there are numbers stamped on the machined block deck at the driver’s side rear corner. The number is: CRF524826. I have no idea what this number is other than maybe a VIN number.

Here is what I do know.

GM 5.7LG SGI: Engine has cast into block “GM 5.7LG SGI . . . block is a 350/5.7Liter and SGI is the type of metal used in casting the block

14093638: “Block Casting Number” . . . block style was made between 1986-94, 350 cubic inch, 2 or 4 bolt main, roller, or non-roller cam.
Note: I pulled the pan and I have a 4 bolt main, I have not pulled a lifter yet to determine roller cam or not.

D114: “Block Casting Date” . . . D=April, 11=11th day, 4= is last number in the year this block was cast and the “Block Casting Number shows this block was cast from 1986-94 so the number 4 tells this block was cast in 1994 or specifically on April 11, 1994.

V0414FWB: “Engine ID Number” . . . V=Flint Plant, 04=April, 14=14th day (Block cast in Flint Plant and number stamped on April 14th). As I stated above, I have not been able to find what the suffix "FWB" is telling me.

Thank you in advance for your help,
Tom


 
fritz1990 
Senior Member
Posts: 6401
fritz1990
Age: 52
Loc: Kansas
Reg: 02-16-03
12-18-10 05:55 PM - Post#2019937    
    In response to Tom350

  • Tom350 Said:
Hello . . . I need help on these two numbers V0414FWB and CRF524826VO414FWB:

V0414FWB "Engine ID": Hopefully someone can help. I’ve spent hours searching for what the “Suffix” “ of “FWB” is telling me about my engine, full engine ID Number stamped is: V0414FWB. I pulled this out of a Chevy Van but it is original to the van. I was told the engine came out of a 1994 Chevy truck. I would like to know what the “Suffix” is telling about the specs of the engine.

CRF524826: Also, there are numbers stamped on the machined block deck at the driver’s side rear corner. The number is: CRF524826. I have no idea what this number is other than maybe a VIN number.

Here is what I do know.

GM 5.7LG SGI: Engine has cast into block “GM 5.7LG SGI . . . block is a 350/5.7Liter and SGI is the type of metal used in casting the block

14093638: “Block Casting Number” . . . block style was made between 1986-94, 350 cubic inch, 2 or 4 bolt main, roller, or non-roller cam.
Note: I pulled the pan and I have a 4 bolt main, I have not pulled a lifter yet to determine roller cam or not.

D114: “Block Casting Date” . . . D=April, 11=11th day, 4= is last number in the year this block was cast and the “Block Casting Number shows this block was cast from 1986-94 so the number 4 tells this block was cast in 1994 or specifically on April 11, 1994.

V0414FWB: “Engine ID Number” . . . V=Flint Plant, 04=April, 14=14th day (Block cast in Flint Plant and number stamped on April 14th). As I stated above, I have not been able to find what the suffix "FWB" is telling me.

Thank you in advance for your help,
Tom





If you have the pan off look up in there and see if it is flat tappets or roller tappets.

Regards, Jeff
1998 K1500 6.5 Coal burner
1965 C10 with 498 BBC AFR Heads
1964 C10 Ran 348W for 6 years, now SBC.

Corvettes owned: '74 '77 '78 L82 Silver Anniversary, 2002 LS1

Don't have a nervous come together!

http://picasaweb.google.com/fritz199090


Edited by fritz1990 on 12-18-10 05:56 PM. Reason for edit: No reason given.

 
Eight90 
Moderator
Posts: 4884
Eight90
Loc: Ohio's North Coast
Reg: 03-31-01
12-18-10 09:25 PM - Post#2020024    
    In response to Tom350

Tom350
V0414FWB: “Engine ID Number” . . . V=Flint Plant, 04=April, 14=14th day (Block cast in Flint Plant and number stamped on April 14th). As I stated above, I have not been able to find what the suffix "FWB" is telling me.
Tom,check that suffix again,,, I believe it my be FWA not FWB,,, FWA is 1994 350CID 210 HP TBI 4x4 truck engine.
1974 Chevy "Pro Street" Nova
Http://www.eight90s.20fr.com
Chevrolet in Racing & Chat Room Moderator


 
Tom350 
Forum Newbie
Posts: 4

Reg: 12-18-10
12-18-10 09:40 PM - Post#2020027    
    In response to fritz1990

Thanks for the reply Jeff.

I’m away for the weekend and have planned on pulling one of the lifters out Monday to see if it is a “roller” or “flat”. The “suffix” will tell me horse power and other information I would like to have. I found some other general information that probably applies to my 350 but would like to find the specs for my suffix of “FWB” to have certainty. Below is the other general information I found which shows the Bore is probably 4.001 (2.45”main) which coincides with my block being a 4 bolt main.

General Engine Block Specifications
While 6 different bore size blocks have been produced, the small block engine can be classified into 3 bore sizes and 3 main bearing sizes. 283 blocks (3.875" bore, 2.3" main), 302/327/350 blocks (4" bore, 2.3" or 2.45" mains), and 400 blocks (4.126", 2.65" mains). In 1968 the main bearing saddles were increased in size from 2.3" to 2.45".

CID Year Bore Main Cap
262 1975 3.671 2 bolt ONLY
267 1979 - 81 3.500 2 bolt ONLY
305 1976 - 96 3.736 2 bolt ONLY
307 1968 - 73 3.875 2 bolt ONLY
327 1968-69 4.001 (2.3" main) 2 bolt
350 1968-88 4.001 (2.3" main) 2 bolt
265 1994 4.001 (2.45" main) 2 bolt
302 1968-69 4.001 (2.45" main) 4 bolt
350 1968-96 4.001 (2.45" main) 4 bolt
400 1970-72 4.126 (2.65" main) 4 bolt
400 1973-80 4.126 (2.65" main) 2 bolt

Thanks again Jeff, any more information is greatly appreciated. I’ve tried to post a few photos but when I click on the image icon in the group of editing icons a window pops up asking for a URL which I’m sure is a URL to find the photos. Well the photos are on my laptop computer and I don’t have a clue what to do.

Tom


 
Tom350 
Forum Newbie
Posts: 4

Reg: 12-18-10
12-18-10 10:26 PM - Post#2020039    
    In response to Eight90

Tom,check that suffix again,,, I believe it my be FWA not FWB,,, FWA is 1994 350CID 210 HP TBI 4x4 truck engine.


Eight90 . . . Thanks for the input. I have also found the “FWA” suffix in my search and that would coincide with my being told that the engine was out of a 1994 truck. I have a macro photo of the engine ID number and it clearly shows the suffix on the block as “FWA”. I have the engine on an engine stand and the outside of the block completely cleaned down to bare metal top to bottom. I tried to post the photo of it but I don’t know how to. I am not able to copy and paste, it needs to be uploaded somehow.

I suppose there is the possibility that there was a mistake in the Flint Plant stamping the number which I have read happened infrequently or there is a type-o in the Suffix table posted.

I have also read that Suffix codes historically have not been general knowledge to the public, only to GM dealers and the publishing to Suffix codes to the public have been to a great part by car enthusiasts researching and posting them. Since my 350 is out of a truck and not from a classic car or muscle car I was thinking that truck engine Suffix codes are not full posted to the public. Anyway, my not being able to find the suffix “FWA” when it is clearly stamped on the block has had me hoping someone out there has access to factory GM truck Suffix codes and could help. This dialog with you now has me considering there may be a type-o in the stamping or published Suffix codes.

Thank you so much for your input, any other thoughts or information is greatly appreciated.

Tom


 
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