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I have purchased a 68 FB and suspect the engine is not original. How can I tell? The car came with a 289 2V but how can I tell if it is a 289 or a 302?
Thanks.
 

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Places to start

1. Find the casting number and casting date on the block above the starter

2. Locate if possible the small aluminum engine ID tag from the front of the engine

3. Look and locate the VIN on the block (rear ) from the car it origianlly came from if its there

Jeff Speegle
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The best way to tell involves tearing off the intake manifold. Underneath, it will say 289 or 302. Just about directly under the carburator.


You're just jealous because the voices only talk to me!!!
66 200 3-spd Coupe - emberglo, daily driver
65 289 4-spd Conv - Rangoon Red (what else)
66 Shelby - Red and Ready to be Restored
 

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Since the deck height and bore size are the same for a 289 & 302, and many a 289 left the Ford Factory with a block with 302 cast into it, the best way to tell them apart is by the crankshaft. A 289 shaft is marked 1M, a 302 is 2M

68 GT500
68 1/2 CJ Coupe

MCA# 18519
 

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Be aware that the crank might not be the original one for the block ;)

Jeff Speegle
MCA Shelby Gold Card

http://www.geocities.com/MotorCity/6473
Mustang & Shelby research, documentation

http://albums.photopoint.com/j/View?u=1609818&a=12284202&p=44925357&Sequence=7&res=high.jpg
 

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In 68 cars we often find 289's with 302 castings so be careful ;)

Jeff Speegle
MCA Shelby Gold Card

http://www.geocities.com/MotorCity/6473
Mustang & Shelby research, documentation

http://albums.photopoint.com/j/View?u=1609818&a=12284202&p=44925357&Sequence=7&res=high.jpg
 
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