ID my block. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

BigCarl · 07-12-2009, 06:47 PM

Cast #3970010

id - K05 17 TDD

Heads are (left side) 3888820 or 3888920 arrow pointing to the 8th dot
and (right side) 3888920 arrow pointing to 4th dot.

I don't know what the deal is on the ID but that is all that is there.

Sitting in a 1972 GMC.

Figured it out... 1972 350.

BigCarl · 07-12-2009, 06:54 PM

...

**mikey531** · 07-12-2009, 07:13 PM

Hi Carl

The block was made in St. Catherines, Ontario McKinnon Industries Canada (K). It was cast on May = 05 17th day

TDD 1972 350
TDD 1980 350 conv.cab m/t C-20 & 2500

This is the closest I could find for a head number

3998920....72-73...350

07-12-2009, 06:47 PM	#1
BigCarl Registered User Join Date: Sep 2007 Location: Thunder Bay, Ontario Posts: 170	ID my block. Cast #3970010 id - K05 17 TDD Heads are (left side) 3888820 or 3888920 arrow pointing to the 8th dot and (right side) 3888920 arrow pointing to 4th dot. I don't know what the deal is on the ID but that is all that is there. Sitting in a 1972 GMC. Figured it out... 1972 350. Last edited by BigCarl; 07-12-2009 at 06:55 PM.

07-12-2009, 06:54 PM	#2
BigCarl Registered User Join Date: Sep 2007 Location: Thunder Bay, Ontario Posts: 170	Re: ID my block. ... Last edited by BigCarl; 07-12-2009 at 06:55 PM.

07-12-2009, 07:13 PM	#3
mikey531 Senior Member Join Date: Jul 2009 Location: Exeter, NH Posts: 795	Re: ID my block. Hi Carl The block was made in St. Catherines, Ontario McKinnon Industries Canada (K). It was cast on May = 05 17th day TDD 1972 350 TDD 1980 350 conv.cab m/t C-20 & 2500 This is the closest I could find for a head number 3998920....72-73...350 Last edited by mikey531; 07-12-2009 at 07:20 PM.



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