Stamping on my 350 - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Jason kitchens · 01-24-2021, 12:31 AM

Can any one tell me about my stamping on my engine block mean ? On the front on the pad the number is vc 199800 and in the back it is 39 GM 3970010 it would be much appreciated thank you

4u2nv · 01-24-2021, 07:12 AM

Quote:

Originally Posted by Jason kitchens

Can any one tell me about my stamping on my engine block mean ? On the front on the pad the number is vc 199800 and in the back it is 39 GM 3970010 it would be much appreciated thank you

O10 is a higher nickel content

010: 1968.5-1979 4" bore LH dipstick.
207: 1980-85 4"bore RH dipstick
Original color for 1976 and earlier was "chevy orange
Some are 2 bolt , some are 4 bolt
http://www.thedirtforum.com/castings.htm

**special-K** · 01-24-2021, 08:54 AM

If VC is the suffix code stamped on the pad of the block up front/left side, I don't see that listed. Maybe it's a replacement block?

Jason kitchens · 01-24-2021, 11:18 AM

Could it be VL ? Does that make sense?

**special-K** · 01-24-2021, 06:39 PM

If that's definitely a V, the two digit codes that started with V were:

VB - '69 C/10 & C/20 350 4bbl manual trans 255hp
VR - '69 C/10 & C/20 350 4bbl manual trans 3spd 255hp
VS - '69 K/20 350 4bbl manual trans 3spd 255hp

68Timber · 01-24-2021, 08:45 PM

https://www.mortec.com/

**MJN** · 01-25-2021, 09:36 AM

Quote:

Originally Posted by Jason kitchens

Can any one tell me about my stamping on my engine block mean ? On the front on the pad the number is vc 199800 and in the back it is 39 GM 3970010 it would be much appreciated thank you

Is there any other stampings on the front pad? A suffix code, be definition, will come at the end of the stamped code. For example, T02I4IT, where IT is the suffix code. Anything stamped at the start of the code is a prefix code. The VC 199800 doesn't tell us anything other than it may be the partial VIN that was stamped on the block starting in '72. The VIN stamping should be in 1/8" tall characters while the engine code will be in 3/16" tall characters.

In addition to the codes Special-K listed there is also VJZ: 1972 350, 175hp, 4BBL, Manual trans, Truck application; and VP: 1969 350, 215hp, 2bbl, manual trans, L-65 RPO, C/50 truck application

01-24-2021, 12:31 AM	#1
Jason kitchens Registered User Join Date: Mar 2019 Location: concord Posts: 46	Stamping on my 350 Can any one tell me about my stamping on my engine block mean ? On the front on the pad the number is vc 199800 and in the back it is 39 GM 3970010 it would be much appreciated thank you

01-24-2021, 08:54 AM	#3
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: Stamping on my 350 If VC is the suffix code stamped on the pad of the block up front/left side, I don't see that listed. Maybe it's a replacement block? __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-24-2021, 11:18 AM	#4
Jason kitchens Registered User Join Date: Mar 2019 Location: concord Posts: 46	Re: Stamping on my 350 Could it be VL ? Does that make sense?

01-24-2021, 06:39 PM	#5
special-K Special Order Join Date: Nov 2004 Location: Mt Airy, MD Posts: 85,863	Re: Stamping on my 350 If that's definitely a V, the two digit codes that started with V were: VB - '69 C/10 & C/20 350 4bbl manual trans 255hp VR - '69 C/10 & C/20 350 4bbl manual trans 3spd 255hp VS - '69 K/20 350 4bbl manual trans 3spd 255hp __________________ "BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed" GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project) GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling) Tim "Don't call me a redneck. I'm a rough cut country gentleman" R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~

01-24-2021, 08:45 PM	#6
68Timber I know the pieces fit Join Date: Nov 2007 Location: MONTGOMERY, AL Posts: 5,523	Re: Stamping on my 350 https://www.mortec.com/ __________________ John 79 2wd Blazer (Bruiser) 85 M1009 Blazer (Sarge) build 74 Honda Z50 build



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