Engine ID ???? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

wink05 · 08-24-2005, 04:17 PM

Previous owner preformed an engine swap in my '67 C10, now trying to identify and determine if it's a desireable block to rebuild, (not into mega HP, more into dependability).

Here's what I have---
Engine Casting: 3970010
Engine Date: J 30 8 (may be a 6, sure looks like an 8)
Casting #: V1104TYZ
Blk Vin: T7F711781

The intake and exhaust manifolds appear to have been switched out, retains the original 2V Rochester.

If it happens to be a 350, is it possible to determine if it's a 2 bolt or 4 bolt without pulling the pan?

Is it worth searching for a 350 block with the "010" and "020" stamped behind the timing chain cover?

Thoughts on going with/rebuilding a 283 ?

Thanks in advance for the help!!!!!!!!!!!!!!!!!

fade94 · 08-24-2005, 04:22 PM

www.mortec.com Could be any of the following...

3970010....302.....69....4...Z-28 Camaro
3970010....327.....69....2...Trucks and industrial
3970010....350...69-80...2 or 4

**john** · 08-24-2005, 04:40 PM

TYZ= 1975 LS9 350Ci 165 HP 4bb c10-c2500

CHEVYE · 08-24-2005, 05:03 PM

that is a good block to build. there is no way to tell if it is a 2 or 4 bolt until you drop the pan. 2 or 4 doesn't matter much anyway if it's built right.

08-24-2005, 04:17 PM	#1
wink05 Registered User Join Date: Aug 2005 Location: Denison, Tx Posts: 25	Engine ID ???? Previous owner preformed an engine swap in my '67 C10, now trying to identify and determine if it's a desireable block to rebuild, (not into mega HP, more into dependability). Here's what I have--- Engine Casting: 3970010 Engine Date: J 30 8 (may be a 6, sure looks like an 8) Casting #: V1104TYZ Blk Vin: T7F711781 The intake and exhaust manifolds appear to have been switched out, retains the original 2V Rochester. If it happens to be a 350, is it possible to determine if it's a 2 bolt or 4 bolt without pulling the pan? Is it worth searching for a 350 block with the "010" and "020" stamped behind the timing chain cover? Thoughts on going with/rebuilding a 283 ? Thanks in advance for the help!!!!!!!!!!!!!!!!!

08-24-2005, 04:22 PM	#2
fade94 Registered User Join Date: Mar 2005 Location: Melissa, TX Posts: 799	www.mortec.com Could be any of the following... 3970010....302.....69....4...Z-28 Camaro 3970010....327.....69....2...Trucks and industrial 3970010....350...69-80...2 or 4 __________________ 68 short bed driver (71 clip on it now, swapping to 68 when weather cooperates) 67 short step project (will get SWB from the 68) 67 Camaro, #'s matching (my wife's) 03 Dodge Ram 2500 4x4 diesel 5 speed 4.10 rear

08-24-2005, 04:40 PM	#3
john member #16 Join Date: Dec 1999 Location: Yuba City Ca. Posts: 3,618	TYZ= 1975 LS9 350Ci 165 HP 4bb c10-c2500 __________________ john http://67-72chevytrucks.com/vboard/showgroups.php board vendors http://www.flickr.com/photos/1745471...7602865984234/ Last edited by john; 08-24-2005 at 04:41 PM.

08-24-2005, 05:03 PM	#4
CHEVYE my gas saver Join Date: Sep 2003 Location: Clarksville, TN Posts: 2,046	that is a good block to build. there is no way to tell if it is a 2 or 4 bolt until you drop the pan. 2 or 4 doesn't matter much anyway if it's built right. __________________ 85' SWB, 4.3/TH350, getting ready for paint 84`SWB, 462ci./TH400, cowl hood, 15" billet spec., flows, blazer buckets/console, flat black 71`SWB, project ebay feedback



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