Compiled from Various Sources

198 Casting numbers courtesy of Roger Tanuis and easydigger.

198 V6 Numbers

These numbers are may not be complete. If you have more numbers or information on 198s please please e-mail me, Sparky.

Located on the front of the block, drivers side, just below the head

Engine Number

First Digit: Year

• I -62
• J -63

Second through Fifth Digits: location cast and car serial number

• 25104

More on the engine numbers; a 6 means a 6 cyl with a .010″ oversize cylinder bore engine.

Casting Numbers: On the back of the motor at the top, casting numbers

• GM 1349430

Intake casting numbers:

• 1851578-2
• B1851673-8

Note on manifold numbers; these numbers are the only casting numbers I have seen for 198’s, there may be others. If there are and you know of them please e-mail me, sparky.

ahs.