Reply
 
Thread Tools Display Modes
  #1  
Old 05-28-2017, 09:02 PM
Doug Hopkins's Avatar
Doug Hopkins Doug Hopkins is offline
Chief Ponti-yacker
 
Join Date: Dec 1999
Location: Sebring, Florida USA
Posts: 833
Default Value of a SD 455 Block

I have a lead on SD 455 block. Apparently an SR block and the guy that has it, bought it new from the parts department at a local dealer back in the day. He used it short term in a fast street car and then put it in storage. Std. bore bare block. I have not done a visual inspection yet and I don't know if it's a 73 or 74. My question is how much is this block worth in good condition.

  #2  
Old 05-28-2017, 11:27 PM
mscicluna007's Avatar
mscicluna007 mscicluna007 is offline
Senior Chief
 
Join Date: Oct 2004
Location: Australia
Posts: 303
Default

73 and 74 SD Blocks are identical other than date codes.

The service replacement is the same but the date code could be anywhere. Mine is J197 so they were made at least up until 77.

Price would depend on how complete it is as if you have to replace items like heads, intake carb or distrubutor they will cost you.

It should have SR 81890 stamped down bottom of the block front left side.
Block should be Vinless

Sent from my SM-G930F using Tapatalk

  #3  
Old 05-29-2017, 04:20 AM
mscicluna007's Avatar
mscicluna007 mscicluna007 is offline
Senior Chief
 
Join Date: Oct 2004
Location: Australia
Posts: 303
Default

Heres a complete short block at the moment.
Might be a bit high but won't be surprised if it sells.

Look at this on eBay http://www.ebay.com/itm/382081910670

Sent from my SM-G930F using Tapatalk

  #4  
Old 05-29-2017, 06:55 AM
Doug Hopkins's Avatar
Doug Hopkins Doug Hopkins is offline
Chief Ponti-yacker
 
Join Date: Dec 1999
Location: Sebring, Florida USA
Posts: 833
Default

Quote:
Originally Posted by mscicluna007 View Post
73 and 74 SD Blocks are identical other than date codes.

The service replacement is the same but the date code could be anywhere. Mine is J197 so they were made at least up until 77.

Price would depend on how complete it is as if you have to replace items like heads, intake carb or distrubutor they will cost you.

It should have SR 81890 stamped down bottom of the block front left side.
Block should be Vinless

Sent from my SM-G930F using Tapatalk
This is just a bare block. I will inspect it this week. I may use it in my race car or just flip it.
.


Last edited by Doug Hopkins; 05-29-2017 at 07:51 AM.
  #5  
Old 05-29-2017, 08:03 AM
The Boss's Avatar
The Boss The Boss is offline
Ultimate Warrior
 
Join Date: Mar 2005
Location: Newtown, CT
Posts: 15,454
Default

That e-bay auction seems a bit optimistic.

__________________
Some guys they just give up living
And start dying little by little, piece by piece,
Some guys come home from work and wash up,
And go racin' in the street.


Bruce Springsteen - Racing In The Street - 1978
  #6  
Old 05-29-2017, 08:54 AM
weranc55's Avatar
weranc55 weranc55 is offline
Ultimate Warrior
 
Join Date: Jun 2004
Posts: 2,383
Default

Quote:
Originally Posted by The Boss View Post
That e-bay auction seems a bit optimistic.
The guys not optimistic. He smoking crack. A bare service replacement block is worth between 2500 to 4K.

  #7  
Old 05-29-2017, 09:37 AM
poncho-mike poncho-mike is offline
Ultimate Warrior
 
Join Date: Feb 2002
Location: Raleigh, NC
Posts: 2,082
Default

One of my friends gave out my contact information to a guy looking for a 74 SD455 automatic engine. He has an original SD455 car that is missing its original engine. I have a fairly well optioned 74 T/A SD455 automatic that is rough and partially taken apart. It has the numbers match Y8 short block assembly and SD455 heads. I offered to sell him the complete car for $15K, but he only wants to pay $10K for just the engine. I declined his offer, he's increased it to $11K. He's been looking for an engine for a couple of years now. He's found a couple that were priced in the teens, but he moved too slow or passed on them.

$14K is pretty steep for just a short block, but Ebay shows it has 41 watchers.

  #8  
Old 05-31-2017, 01:29 PM
Joe's Garage Joe's Garage is offline
Chief Ponti-yacker
 
Join Date: Oct 2016
Location: Las Vega$, NV
Posts: 638
Question I'd love to buy an SD455 block for $4k

We sold a really nice used SD block back in 2014 for $7500. That block is living in a 1973 4-speed SD455 TA now.

It was a bare, service replacement block with standard bore and factory main caps. I think (but it's kind of a fuzzy memory) that it was dated in late 1974.

The price of the long block on eBay is a bit optimistic, but it wouldn't surprise me if someone stepped up and bought it for somewhere near $10k.

I haven't seen a SR SD455 block for sale in quite a while. Has anyone else?

  #9  
Old 05-31-2017, 02:14 PM
poncho-mike poncho-mike is offline
Ultimate Warrior
 
Join Date: Feb 2002
Location: Raleigh, NC
Posts: 2,082
Default

I have seen very few SR SD455 blocks.

I have a SD455 block with no numbers at all, no SR #, no factory VIN, nothing. It was in a 72 Trans Am 4-spd that came from the WV area back in the 1980s. It had the typical WV rust from salt and wasn't worth fixing at the time, so I took it apart. The motor consisted of a complete SD455 short block assembly with a 72 455HO top end. The owner claimed that he blew up the original 455HO plus a second SR 455 block during the warranty period. After the last engine blew he complained so loudly to the dealership that they installed a SD455 short block in his car. Luckily that engine survived his heavy foot. The distributor was a SD455 unit with 73 production dates, and the block had the correct pistons and rods. I would have expected it to have some type of stamping on it, so I'm guessing that maybe the short block assembly may have been one available for purchase over the parts counter.

Has anybody ever seen a SD455 block with no stampings anywhere?

Mike

  #10  
Old 05-31-2017, 03:15 PM
Rocky Rotella's Avatar
Rocky Rotella Rocky Rotella is offline
Ultimate Warrior
 
Join Date: Dec 1999
Location: Omaha, NE
Posts: 2,686
Default

Mike,

Do you recall the date code on that block?

  #11  
Old 05-31-2017, 03:51 PM
poncho-mike poncho-mike is offline
Ultimate Warrior
 
Join Date: Feb 2002
Location: Raleigh, NC
Posts: 2,082
Default

No, it's greased up and wrapped in plastic for storage. It's in storage a couple of hundred miles away.

  #12  
Old 06-01-2017, 03:06 PM
Doug Hopkins's Avatar
Doug Hopkins Doug Hopkins is offline
Chief Ponti-yacker
 
Join Date: Dec 1999
Location: Sebring, Florida USA
Posts: 833
Default

I now have this SD 455 block in my possession and I am open to offers if anyone is interested. It is in very good condition with a standard bore, and good main bore/caps. It has been stored a long time, and it has some surface rust in a few areas that would require a small (.030) bore increase and maybe .010 off the deck. Pretty much standard in any engine build. Block cast #490132 Casting date is C294. Stamp where VIN is usually at is SR8 7070. I can send pics to anyone interested.


Last edited by Doug Hopkins; 06-01-2017 at 03:24 PM.
  #13  
Old 06-01-2017, 04:05 PM
Brad Pringle's Avatar
Brad Pringle Brad Pringle is offline
Senior Member
 
Join Date: Jul 2009
Location: Wellston, MI
Posts: 209
Default

PMed u Doug

Brad

__________________
Brad Pringle
Wellston, Michigan

1973 SD 455 TA Auto
1974 SD455 TA 4 Spd
  #14  
Old 06-04-2017, 10:28 AM
poncho-mike poncho-mike is offline
Ultimate Warrior
 
Join Date: Feb 2002
Location: Raleigh, NC
Posts: 2,082
Default

I checked the block yesterday. The cast date is A093.

Quote:
Originally Posted by Rocky Rotella View Post
Mike,

Do you recall the date code on that block?

  #15  
Old 06-10-2017, 06:05 AM
1971WARBIRD's Avatar
1971WARBIRD 1971WARBIRD is offline
Ultimate Warrior
 
Join Date: Nov 2006
Location: Troy, Ohio
Posts: 2,467
Default

Doug, i sent you a PM, if you still have this interested. i live next door in Tipp.

__________________
FREEDOM ISN'T FREE
BUT WORTH FIGHTING FOR
  #16  
Old 06-29-2017, 10:11 AM
Doug Hopkins's Avatar
Doug Hopkins Doug Hopkins is offline
Chief Ponti-yacker
 
Join Date: Dec 1999
Location: Sebring, Florida USA
Posts: 833
Default

Block is now owned by Brad Pringle. Looking forward to seeing the finished product.

Reply


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 12:18 AM.

 

About Us

The PY Online Forums is the largest online gathering of Pontiac enthusiasts anywhere in the world. Founded in 1991, it was also the first online forum for people to gather and talk about their Pontiacs. Since then, it has become the mecca of Pontiac technical data and knowledge that no other place can surpass.

 




Copyright © 2017