6-Cylinder Engine Casting Lookup Tool
Identify Your Chevy Or GMC Inline-6
Correctly identifying your engine can prove challenging. This Casting Number Lookup tool will try to identify the year, make, and displacement of your Chevy or GMC six-cylinder engine based on the block casting number.
Where can I find my casting number?
Engine Casting Lookup Tool
Enter your block casting number for engine information. (Example: 2193980)