87 Chevy Scottsdale 4x4 - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 07-19-2010, 06:07 PM
Registered User
 
Last photo:
Join Date: Jul 2010
Location: Espanola, NM
Posts: 5
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
87 Chevy Scottsdale 4x4

I recently bought this truck and trying to figure what engine size it has. I have done some research and narrowed it down to three engine sizes 302,327,350. My only concern is when I need to buy parts what engine size do I use, or are they all interchangeable? Here are the numbers I have located so far, any info will help thanks.

Engine: 3970010 (Back)
12S251168 (Front of passenger head)

Intake Manifold: 346250

Heads: 333882

P.S. All these numbers seem to bring up different engine sizes, how do they all work together. Is there anything anyone would change? Thnks again

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-19-2010, 06:40 PM
Sinister's Avatar
Registered User
 
Last photo:
Join Date: Aug 2007
Location: Los Angeles, CA.
Posts: 221
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
My guess is it's a 350.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-19-2010, 07:04 PM
Registered User
 
Last photo:
Join Date: Jan 2007
Location: canada
Posts: 564
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
likely a mid 70s 350
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 07-19-2010, 07:10 PM
bigdog7373's Avatar
Of course it's fast
 
Last photo:
Join Date: May 2010
Location: florida
Posts: 2,673
Wiki Edits: 0

Thanks: 13
Thanked 49 Times in 49 Posts
If it's a 1968 block, it's a 327, but thats rare in an 80's truck. It's probably the 69-79 block which is a 350. http://www.nastyz28.com/sbchevy/sblock.php
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 07-20-2010, 02:54 AM
Registered User
 
Last photo:
Join Date: Jan 2009
Location: Springfield, MO
Age: 29
Posts: 1,100
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
No 302s or 327s in the 80s. I dont think the 302 or 327s have been made since the 60s and i'm not sure they ever made it into a truck anyways? Maybe the 327 did i dunno. Anyways its possible that the older engine was put into your truck but most likely its still a 350. I rarely see a 327 and even more rarely see a 302.

The only way to know for sure would be to pull the heads and check the bore and stroke. If it measured 4" bore and 3.50" stroke then its a 350. (its actually 3.48" but you wont be able to tell .020" with a ruler or tape measure)
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 07-20-2010, 05:57 AM
Registered User
 
Last photo:
Join Date: Jan 2007
Location: canada
Posts: 564
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
someone swapped that engine in the truck for sure. you won't find a 70s engine in an 87 truck from factory. the original engine would have been a 1 piece rear seal with center bolt heads and throttle body fuel injection
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 07-20-2010, 06:02 AM
Registered User
 
Last photo:
Join Date: Jan 2009
Location: Springfield, MO
Age: 29
Posts: 1,100
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
Yep, 86 was the first year for the centerbolt heads and 1 pc rear oil seal. I believe they changed to a shallow groove oil ring or something like that as well.

Then in 87 they got the TBI.

An 0010 block would be from the 70s. Had it not been 4am id probably have pointed this out.

The 0010 engines never had centerbolt heads, they had 2 pc main seals and they never had fuel injection
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 07-20-2010, 10:32 AM
Registered User
 
Last photo:
Join Date: Jul 2010
Location: Espanola, NM
Posts: 5
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Buying parts

So when buying parts for my engine do I just pick a year from the 70's since the original engine was swaped out? Thank you all for your help.
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 07-20-2010, 10:41 AM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,654
Wiki Edits: 0

Thanks: 15
Thanked 58 Times in 55 Posts
Clean off the front pad on the passengers side block deck, right behind the alternator. There you will find the suffix code that will look something like this:
HTC We can then look up that suffix code and tell you what you have and what it came out of. Paint maybe partially covering it so you can`t see it.
Fully, it appears like this V1123HTC as a example.
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 07-20-2010, 10:41 AM
Registered User
 
Last photo:
Join Date: Jan 2009
Location: Springfield, MO
Age: 29
Posts: 1,100
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by dare79
So when buying parts for my engine do I just pick a year from the 70's since the original engine was swaped out? Thank you all for your help.
That depends on what the part is. If you have the serpentine belt setup like i think your truck should have, then you would want to order parts for the 87. The water pump and alternator and stuff are not the same as the ones with v-belts.

Did they swap the fuel injection onto this older engine or is it carbed? If you dont know the difference, the TBI looks alot like a carb, but it is not a carb. There will only be two barrels if its TBI and most likely 4 if its carb.

If its carb then youd probably order any other part from a 70s pickup. If its swapped to fuel injection then youd order parts for the 87. I'm betting they converted it to carb tho.
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 07-22-2010, 01:15 PM
Registered User
 
Last photo:
Join Date: Jul 2010
Location: Espanola, NM
Posts: 5
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Pics

Here is a pic of the engine. The carb is also a edelbrock. The only numbers i found on the pad behind the altenator were 12S251168 to the left of the pad and 116 on the right side.
Attached Thumbnails
Click image for larger version

Name:	013.JPG
Views:	119
Size:	85.9 KB
ID:	46915   Click image for larger version

Name:	014.JPG
Views:	96
Size:	91.2 KB
ID:	46916  
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 07-22-2010, 02:51 PM
Registered User
 
Last photo:
Join Date: Jan 2007
Location: canada
Posts: 564
Wiki Edits: 0

Thanks: 0
Thanked 3 Times in 3 Posts
someone just slapped in a 70s 350. the front accessory drive is correct for an 87 model year
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 07-22-2010, 02:55 PM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,654
Wiki Edits: 0

Thanks: 15
Thanked 58 Times in 55 Posts
It appears you have a edelbrock carb on a stock intake with a adapter plate. Big mistake. Adapters are junk and the best place for them is the trash. It would run alot better with a edelbrock performer intake or a Quadrajet on the stock intake. Adapters disrupt the mixture and the vacuum, they also kill low end power. Does the distributor have a vacuum advance?
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 07-22-2010, 05:05 PM
sbchevfreak's Avatar
Licenced Automotive Technician
 
Last photo:
Join Date: Feb 2004
Location: Land of big Easter eggs, Alberta
Age: 34
Posts: 1,604
Wiki Edits: 0

Thanks: 8
Thanked 9 Times in 9 Posts
You will also want to plug that HUGE hole in the exaughst manifold on #1 cylinder.
Reply With Quote Quick reply to this message
  #15 (permalink)  
Old 07-22-2010, 08:23 PM
Registered User
 
Last photo:
Join Date: Jan 2009
Location: Springfield, MO
Age: 29
Posts: 1,100
Wiki Edits: 0

Thanks: 5
Thanked 0 Times in 0 Posts
That looks like some kind of serpentine belt on the water pump and alternator and a v belt on the power steering pump. Is that accurate?
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
79 Chevy Scottsdale 350 4BBL 79ScottsdaleGA Introduce Yourself 2 03-25-2009 10:05 PM
Converting an '83 Scottsdale 2Wheel Drive to 4x4 ChevyJim Suspension - Brakes - Steering 9 03-25-2007 07:55 PM
87' Bronco 2 4x4 One touch 4x4 button IAMCANADIAN Electrical 1 02-08-2003 03:49 PM
87' Bronco2 4x4 won't work IAMCANADIAN Transmission - Rearend 1 02-06-2003 12:44 PM
4x4 chevy jimmy stuck in 4 whl drv speedpro Transmission - Rearend 4 11-19-2002 02:06 PM


All times are GMT -6. The time now is 01:59 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.