General Questions Place to post your questions that don't fit into one of the specific forums below.

Head Code Stamp Question

Thread Tools
 
Search this Thread
 
Old Apr 16, 2017 | 09:38 PM
  #1  
pweathers1989's Avatar
Thread Starter
Registered User
 
Joined: Apr 2017
Posts: 8
Head Code Stamp Question

I'm trying to find out what kind of vehicle this motor came from
it is a 425
389244 D Code
Passenger Side Cylinder head has stamp on it.
D243019 L
They are 548 C heads
Thanks in advance
Old Apr 17, 2017 | 08:10 AM
  #2  
CRUZN 66's Avatar
Olds Fever
 
Joined: May 2011
Posts: 4,526
From: New York (Upstate)
That engine most likely is from a 66/67 Full size Olds...
Old Apr 17, 2017 | 08:33 AM
  #3  
joe_padavano's Avatar
Old(s) Fart
 
Joined: Mar 2007
Posts: 50,803
From: Northern VA
Originally Posted by CRUZN 66
That engine most likely is from a 66/67 Full size Olds...
Olds didn't use a "D" prefix for the engine unit number in 66-67. The closest I can find is a "P" in the Delta 88 and Delmont 425 models. The "L" suffix means a low compression (9.0:1) 2bbl motor.

Of course, this just means that one HEAD came off such a motor. There's know way to know for sure where the block and other head came from...
Old Apr 17, 2017 | 10:24 AM
  #4  
pweathers1989's Avatar
Thread Starter
Registered User
 
Joined: Apr 2017
Posts: 8
Originally Posted by joe_padavano
Olds didn't use a "D" prefix for the engine unit number in 66-67. The closest I can find is a "P" in the Delta 88 and Delmont 425 models. The "L" suffix means a low compression (9.0:1) 2bbl motor.

Of course, this just means that one HEAD came off such a motor. There's know way to know for sure where the block and other head came from...
I was told it was from a toro. and it is very clearly a D unless the bottom of the letter did not get stamped.(ive seen stuff like that before on chevy's and this D seems smaller than the rest of the digits so it probably is supposed to be a P.)
it has not been disassembled before i tore it down. they are the original heads to the motor.
still has original rod/main bearings with minimal wear. From the looks of that and the lack of taper in the cylinders 100k tops mileage wise, probably less.
Thank you for the information provided so far and keep up the great work guys
Old Apr 17, 2017 | 10:29 AM
  #5  
joe_padavano's Avatar
Old(s) Fart
 
Joined: Mar 2007
Posts: 50,803
From: Northern VA
Originally Posted by pweathers1989
I was told it was from a toro.
Yeah, and all 327s are "fuelie motors"...

Does it have the Toro intake with the depressed carb flange? Is the original paint light blue?
Old Apr 17, 2017 | 03:18 PM
  #6  
CRUZN 66's Avatar
Olds Fever
 
Joined: May 2011
Posts: 4,526
From: New York (Upstate)
According to the 67 CSM a Toro 425 should have a prefix "R" and a suffix "T"... The 66 CSM shows the Toro 425 with a suffix "T", but was not specific on the prefix... As well, I could not find a "D" code listed...
Old Apr 17, 2017 | 09:04 PM
  #7  
2blu442's Avatar
Moderator
 
Joined: Jun 2006
Posts: 522
You mentioned the D looked smaller than the rest. Could it be the top of an R with the lower legs not stamped well? That would fit with what CRUZN 66 shared.

Can you share a picture of it with us?
Old Apr 17, 2017 | 10:16 PM
  #8  
pweathers1989's Avatar
Thread Starter
Registered User
 
Joined: Apr 2017
Posts: 8
Old Apr 17, 2017 | 10:54 PM
  #9  
svnt442's Avatar
Registered User
 
Joined: Jun 2009
Posts: 4,293
From: Palm Bay, FL
That is definitely a P.
Old Apr 18, 2017 | 04:14 AM
  #10  
joe_padavano's Avatar
Old(s) Fart
 
Joined: Mar 2007
Posts: 50,803
From: Northern VA
Originally Posted by svnt442
That is definitely a P.
Also note that the "L" suffix was never used with the "R" prefix, only with the "P" prefix as I noted above. No Toro motors were low compression.
Old Apr 18, 2017 | 04:14 PM
  #11  
pweathers1989's Avatar
Thread Starter
Registered User
 
Joined: Apr 2017
Posts: 8
Thumbs up

Originally Posted by joe_padavano
Also note that the "L" suffix was never used with the "R" prefix, only with the "P" prefix as I noted above. No Toro motors were low compression.
Thank you all for the information. I like how active this forum is. If anyone needs anything i have a lot of computer skills and i work on eurocars for a living. feel free to shoot me a pm if you need help or have questions.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
michaeljay0862
Wheels and Tires
13
Aug 21, 2014 08:09 PM
71rocket
Small Blocks
1
May 27, 2014 01:30 PM
67cutlass67GS
Small Blocks
0
May 22, 2012 08:15 AM
showyourauto
General Discussion
9
Oct 20, 2009 10:31 AM
Topless72
Big Blocks
0
Apr 30, 2008 09:08 PM




All times are GMT -7. The time now is 06:41 PM.