Help identify a engine

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Jan 2, 2010 | 07:10 PM

TheSaint

Thread Starter

Le Mans Master

Joined: Nov 2009

Posts: 5,442

Likes: 64

From: 50 kilometers outside Oslo Norway

Help identify a engine

I have a engine that i think is from a 1969 Corvette.

The stamp is:GM3970010(the stamp is behind the left head)
Stamps close to the oil filter:371
386
135N

Last edited by TheSaint; Jan 4, 2010 at 12:40 AM.

Jan 2, 2010 | 07:15 PM

Imo Apita

Pro

Joined: Jan 2009

Posts: 576

Likes: 3

According to mortec.com:

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

On the passenger side on the front should be a pad with numbers and letters, that will identify the vehicle and factory if I'm not mistaken.

Last edited by Imo Apita; Jan 2, 2010 at 07:30 PM.

Jan 3, 2010 | 10:08 AM

Mike Ward

Race Director

Joined: Jul 2001

Posts: 15,892

Likes: 42

The engine could have come from just about any GM vehicle built in the above time frame.

The info from the stamp pad is required to narrow it down.

Jan 3, 2010 | 11:18 AM

GREGG-73

Melting Slicks

Joined: Jan 2003

Posts: 2,813

Likes: 1

From: JOPPA MD

Quote:

Originally Posted by Mike Ward

The engine could have come from just about any GM vehicle built in the above time frame.

The info from the stamp pad is required to narrow it down.

You should see a Vin# followed by a Suffix # on the right side front pad. It may be painted over, so to read the numbers you will most likely need to remove same. It sounds as if you know this is not the original engine...regardless, one of the below suffix's should be present (for a 69 small block). If there are No numbers on the pad, the block has been decked (re-machined) at some point in time. Hope this help's....

GC: 350ci, 300hp MT
GD: 350ci, 300hp MT
HW: 350ci, 300hp MT
HX: 350ci, 350hp MT
HY: 350ci, 300hp MT
HZ: 350ci, 300hp AT

Last edited by GREGG-73; Jan 3, 2010 at 11:22 AM.

Jan 3, 2010 | 02:50 PM