How important is a matching numbers 72? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**57NAPCO** · 02-24-2011, 08:36 AM

I'm going to be selling a truck

and was wondering how much difference do y'all think the matching numbers make? Plus how the heck can ya tell, I've been all over the net tryin' to figure out these numbers?

Thanks for any help

myoldchevytruck · 02-24-2011, 08:43 AM

Maybe this site will help

http://www.nastyz28.com/sbchevy/sblock.php

**mr48chev** · 02-24-2011, 11:57 AM

If the truck is stone stock and and or "restored" matching numbers are a big deal as it means that the truck is all original and has the original engine block and transmission in it. If it is a modified truck it isn't a big deal at all to most people and most don't expect a highly modified truck to have matching numbers. Bragging rights for a stock truck not too important for a modified truck.

If I was restoring my 71 to 100% show room stock original I'd dig the original block out of the corner of the garage and rebuild it along with the original heads and go out and get the original turbo 350 out of the transmission pile and rebuild it so that all the numbers matched the truck. But as it stands I don't really care about that as the truck is getting a Cadillac 500 and turbo 400 out of an ambulance and the rear end is getting changed to a 3.55 Posi.

sameyrasmea72 · 02-24-2011, 02:01 PM

Quote:

Originally Posted by 57NAPCO

tryin' to figure out these numbers?

Thanks for any help

If this pic is from your 67-72, then it is not the original engine.

**DANTIP** · 02-24-2011, 04:50 PM

If that's a small block Chevy, I'm guessing you have a 1975 350 with a 4 barrel carb.

TYR 1975 350 165 4 van & bus

The V is a plant code, the 0804 (I think that's August 4th) is a build date and the TYR is the engine code.

**leddzepp** · 02-24-2011, 05:00 PM

the only way you can prove the engine/trans are original to the truck itself is if you have the factory build sheet.
Posted via Mobile Device

**DANTIP** · 02-24-2011, 05:13 PM

The only way I know of to determine originality of the engine is with the Protect-o-plate. Mine has the build date and code of the engine, trans, and rear end on it. Otherwise if you know the build date of the truck and engine, you can at least see if the dates make sense. Typically the engine is 2-4 weeks older than the truck. My build sheet has an engine code but no engine build date (unless I am not seeing it somewhere on the buildsheet).

1972K20 · 02-24-2011, 05:14 PM

If you don't have a factory build sheet for your truck, is it possible to get one from GM?

**57NAPCO** · 02-24-2011, 05:23 PM

Thank you , I did not think it was the original motor but I though I'd check. The truck is a 72 with a 350 in it.
Thank you everyone for the input!

Quote:

Originally Posted by DANTIP

If that's a small block Chevy, I'm guessing you have a 1975 350 with a 4 barrel carb.

TYR 1975 350 165 4 van & bus

The V is a plant code, the 0804 (I think that's August 4th) is a build date and the TYR is the engine code.

swierker · 02-24-2011, 07:41 PM

Quote:

Originally Posted by 1972K20

If you don't have a factory build sheet for your truck, is it possible to get one from GM?

Short answer, no.

02-24-2011, 08:36 AM	#1
57NAPCO F’B’D guy Join Date: Feb 2004 Location: Texas/Maine Posts: 2,237	How important is a matching numbers 72? I'm going to be selling a truck and was wondering how much difference do y'all think the matching numbers make? Plus how the heck can ya tell, I've been all over the net tryin' to figure out these numbers? Thanks for any help Last edited by N2TRUX; 02-24-2011 at 12:01 PM.

02-24-2011, 08:43 AM	#2
myoldchevytruck Retired Air Force Veteran Join Date: Aug 2007 Location: Pembroke Pines, Florida 33024 Posts: 1,808	Re: How important is a matching numbers 72? Maybe this site will help http://www.nastyz28.com/sbchevy/sblock.php __________________ Harry 69' SWB Step Side 1/2 Ton w/68' Front Clip Swap from Leafs to Trailing Arms (Complete) Swap 6 Lug to 5 Lug (w/ Disk Brakes in Front) 3/6 Drop Help Support The Board Click Here For Information On How To Subscribe Krue's FAQ Page Vendors

02-24-2011, 11:57 AM	#3
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,728	Re: How important is a matching numbers 72? If the truck is stone stock and and or "restored" matching numbers are a big deal as it means that the truck is all original and has the original engine block and transmission in it. If it is a modified truck it isn't a big deal at all to most people and most don't expect a highly modified truck to have matching numbers. Bragging rights for a stock truck not too important for a modified truck. If I was restoring my 71 to 100% show room stock original I'd dig the original block out of the corner of the garage and rebuild it along with the original heads and go out and get the original turbo 350 out of the transmission pile and rebuild it so that all the numbers matched the truck. But as it stands I don't really care about that as the truck is getting a Cadillac 500 and turbo 400 out of an ambulance and the rear end is getting changed to a 3.55 Posi.

02-24-2011, 04:50 PM	#5
DANTIP Registered User Join Date: Sep 2001 Location: Fort Wayne, Indiana, USA Posts: 1,889	Re: How important is a matching numbers 72? If that's a small block Chevy, I'm guessing you have a 1975 350 with a 4 barrel carb. TYR 1975 350 165 4 van & bus The V is a plant code, the 0804 (I think that's August 4th) is a build date and the TYR is the engine code. Last edited by DANTIP; 02-24-2011 at 05:14 PM.

02-24-2011, 05:00 PM	#6
leddzepp Moderator Join Date: May 2007 Location: Southern Cal Posts: 20,042	Re: How important is a matching numbers 72? the only way you can prove the engine/trans are original to the truck itself is if you have the factory build sheet. Posted via Mobile Device __________________ 1972 C/10 Cheyenne Super SWB. Restored, loaded, slammed. 1968 C/10 50th Anniversary LWB. Unrestored, stock, daily driver/work truck. RIP ElJay RIP 67ChevyRedneck RIP Grumpy Old Man RIP FleetsidePaul

02-24-2011, 05:13 PM	#7
DANTIP Registered User Join Date: Sep 2001 Location: Fort Wayne, Indiana, USA Posts: 1,889	Re: How important is a matching numbers 72? The only way I know of to determine originality of the engine is with the Protect-o-plate. Mine has the build date and code of the engine, trans, and rear end on it. Otherwise if you know the build date of the truck and engine, you can at least see if the dates make sense. Typically the engine is 2-4 weeks older than the truck. My build sheet has an engine code but no engine build date (unless I am not seeing it somewhere on the buildsheet).

02-24-2011, 05:14 PM	#8
1972K20 Registered User Join Date: Nov 2010 Location: Alabama Posts: 741	Re: How important is a matching numbers 72? If you don't have a factory build sheet for your truck, is it possible to get one from GM?



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