Vintage Chevrolet Club - Forums
A nonprofit organization dedicated to the preservation, restoration and enjoyment of all Chevrolets and GMCs.


Owner: Rustoholic
Previous Thread
Next Thread
Print Thread
Rate Thread
Engine serial numbers #231078
01/16/12 03:35 PM
01/16/12 03:35 PM
Joined: Sep 2006
Posts: 174
San Antonio, Tx
G
gpallen2 Offline OP

Shade Tree Mechanic
gpallen2  Offline OP

Shade Tree Mechanic
G
Joined: Sep 2006
Posts: 174
San Antonio, Tx
I have a question on engine numbers. I have two 1951 engines; I say 1951 only because they came from fairly original 1951 vehicles, recognizing that after 60 years, who knows what's original.

The first is a 235 ci engine from a PG vehicle. It has a block casting date of October, 1950, and a stamped number of HAD1239544. The "parts book" doesn't list a "HAD" prefix but a "HDA" prefix.

The second is a 216 ci with a stamped number of JAM1070225. Again, the "parts books" doesn't list a "JAM" prefix but does list a "JMA" prefix.

Is the parts book being taken too literally or is it really all that definitive? Is it likely that a October, 1950, cast block was originally installed in a 1951 vehicle? The 1951 cars were well into production when this engine was assembled.

Just a point that was made to me by another Chevy owner that I don't have an answer for.

Thanks for any clarification,


52Conv
The Filling Station 1949-54
Re: Engine serial numbers [Re: gpallen2] #231143
01/17/12 04:11 AM
01/17/12 04:11 AM
Joined: Jan 2002
Posts: 25,159
West Allis,Wi.
Chev Nut Offline

Chev Nut  Offline


ChatMaster - 25,000
Joined: Jan 2002
Posts: 25,159
West Allis,Wi.
HAD is a 1950 Power Glide car engine
JAM is a 1951 passenger car 216 engine.

Oct 1950 would still be a 1950 engine as 1950 production ended on 11-11-1950
1951 production began on 11-20-50


Chevgene

Moderated by  brewster 

Your Status
Please register or login to post or reply. Forget Your Password?
Become a Member!

JOIN THE VCCA and get access to the member-only features of the forum, including the ability to upload photos. You'll also receive our monthly magazine "Generator & Distributor". Yearly membership as low as $25!

Helpful Links
Reset Your Password
Kill Your Cookies
Who's Online Now
2 registered members (Floats, 1 invisible), 6 guests, and 5 spiders.
Key: Admin, Global Mod, Mod
Today's Birthdays
Truck1927
Member Photos
1942 Chevrolet oldies
1918 Model D-4
My Chevys
My 31' Chevy Show
What is missing?
31' headlight reflectors re-silvered at home
Newest Members
FB_Tweed, Dones475, aland, Stickdude, Achipmunk
15124 Registered Users
Forum Statistics
Forums69
Topics49,997
Posts362,518
Members15,124
Most Online304
Jun 18th, 2016
 

Notice: Any comments posted herein do not necessarily reflect the official position of the VCCA.

Powered by UBB.threads™ PHP Forum Software 7.6.1.1