1966 L72 427 Biscayne questions
 

I recently purchased a very nice 1966 Biscayne that is suspected to be an L72, The car has all of the date correct component's with matching casting numbers that would represent it to be a real L72. This includes the engine block, heads, bell housing, intake, carb, transmission, tail shaft housing, starter, alternator, rear end housing, along with radio delete, heater delete, 7k tach and more.

My only concerns are that the VIN plate in the driver door pilar and the protecto plate have 15311 yet the cowl tag uses the 15411. I have researched and found that this could happen if the vin plate and protecto plate was produced prior to changes made with options during the ordering timeline?

I appreciate any feedback, I want to fully understand this car.

You have an original 6-cylinder car. The Cowl Tag will always state a V8.

the original protecto plate that I have has the code F0329FA. In researching this that code on the plate represents

F- Flint Michigan
0329 - March 29 1966 - engine assembly date
FA - 427 CID / 425 HP - L72 engine with manual transmission (M21)

ID is the 427-425hp suffix code for a '66 full size Chevrolet.

Looks like you may need new research material, Ken. And unfortunately, reproduction ProtectoPlates are available from several sources....they can be made to say whatever the buyer wants.

GM Dymotape
 

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If you can PM me the vin, I'll check my database and see if I have any info on the car

FA code engine
 

Not sure where you’re getting your information as to the “FA” code but see attached from the Lime Book

Is it a four speed car?

Yes, that. Not FA