Two sets of numbers on old engine block... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

jblaven · 09-14-2011, 04:16 PM

You know, stamped right in front of cylinder number 2 on that angled surface. On my new block, I have just one number there. On my old block (from Flint Michigan factory as per the top number), there is also a 2nd number stamped just below it and sort of overlapping the bottom of the top number. Any ideas of what this is or why it is there?

I though it might be when someone does a rebuild or something. Anyway, i found it odd.
Posted via Mobile Device

BigBlocksRule · 09-14-2011, 05:59 PM

Second number - generally smaller in size - is a partial VIN of the vehicle. First part tells what the engine was destined for.

09-14-2011, 04:16 PM	#1
jblaven Registered User Join Date: Jul 2011 Location: Georgia Posts: 69	Two sets of numbers on old engine block... You know, stamped right in front of cylinder number 2 on that angled surface. On my new block, I have just one number there. On my old block (from Flint Michigan factory as per the top number), there is also a 2nd number stamped just below it and sort of overlapping the bottom of the top number. Any ideas of what this is or why it is there? I though it might be when someone does a rebuild or something. Anyway, i found it odd. Posted via Mobile Device

09-14-2011, 05:59 PM	#2
BigBlocksRule Registered User Join Date: Jun 2008 Location: Lubbock, TX Posts: 2,047	Re: Two sets of numbers on old engine block... Second number - generally smaller in size - is a partial VIN of the vehicle. First part tells what the engine was destined for.

Thread Tools
Show Printable Version Email this Page
Display Modes
Switch to Linear Mode Hybrid Mode Switch to Threaded Mode



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.