how to tell the difference between 289 and 302? - Vintage Mustang Forums
Vintage Mustang Forum
HomeForumGalleryClassifiedsAbout UsAdvertiseContact Us
» Auto Insurance
» Featured Product
Go Back   Vintage Mustang Forums > General Discussion > Vintage Mustang Forum
Vintage-Mustang.com is the premier Ford Mustang Forum on the internet. Registered Users do not see the above ads.
Reply
 
Thread Tools
Old 01-10-2011, 11:11 PM   #1 (permalink)
Senior Member
 
QuickV8.com's Avatar
 
Join Date: Nov 2010
Location: Gainesville, FL
Posts: 216
Default how to tell the difference between 289 and 302?

previous owner told me that my 67 had a 289, and he also gave me a 302 engine supposely. they're identical. one says 302 on the head. other one doesnt.
__________________
http://avatars.ibsrv.net/ibsrv/res/s...ine=1317665490
ModifiedBeasts.com
2004 SVT Cobra 281 M6 · 498.5 RWHP · Stiegemeier Stage 4 Ported M112 Supercharger·Steeda 2.81 Pulley·MotoBlue Pulleys+more
Other Toys: 1967 Mustang 306 M5·1979 Firebird Formula 403 A4·1993 Camaro Z28 355 A4·1997 Mustang GT 281 M5·1987 Mustang GT 302 M5
QuickV8.com is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 01-10-2011, 11:17 PM   #2 (permalink)
Senior Member
 
22GT's Avatar
 
Join Date: Jun 2009
Location: Southeastern Pennsylvania
Posts: 24,416
Default

What are the casting codes on the block above the starter? Be aware, though, the some late 289 engines were assembled with 302 blocks.
__________________
Amateur restorer. Well, sometimes I have been paid for it. But not right now.
22GT is offline   Reply With Quote Quick reply to this message
Old 01-11-2011, 12:38 AM   #3 (permalink)
Senior Member
 
QuickV8.com's Avatar
 
Join Date: Nov 2010
Location: Gainesville, FL
Posts: 216
Default

heres a pic
__________________
http://avatars.ibsrv.net/ibsrv/res/s...ine=1317665490
ModifiedBeasts.com
2004 SVT Cobra 281 M6 · 498.5 RWHP · Stiegemeier Stage 4 Ported M112 Supercharger·Steeda 2.81 Pulley·MotoBlue Pulleys+more
Other Toys: 1967 Mustang 306 M5·1979 Firebird Formula 403 A4·1993 Camaro Z28 355 A4·1997 Mustang GT 281 M5·1987 Mustang GT 302 M5
QuickV8.com is offline   Reply With Quote Quick reply to this message
Old 01-11-2011, 07:19 AM   #4 (permalink)
Member
 
Join Date: May 2009
Location: Netherlands - Rotterdam
Posts: 86
Default

The picture doesnt say anything.
You need to look for the cast numbers on the engine.
Those numbers are located near the place where the startmotor is .
Zipper is offline   Reply With Quote Quick reply to this message
Old 01-11-2011, 07:43 AM   #5 (permalink)
Senior Member
 
22GT's Avatar
 
Join Date: Jun 2009
Location: Southeastern Pennsylvania
Posts: 24,416
Default

Quote:
Originally Posted by Zipper View Post
The picture doesnt say anything.
You need to look for the cast numbers on the engine.
Those numbers are located near the place where the startmotor is .
True-
That photo could be a 289 or a 302, and there would be no way to tell. Really.

The only difference between the 289 and 302 is the 302 has a 1/8" longer stroke.

Experts have screwed this up.

It would be possible to rebuild a 289/302, and not know which it was.
__________________
Amateur restorer. Well, sometimes I have been paid for it. But not right now.

Last edited by 22GT; 01-11-2011 at 07:55 AM.
22GT is offline   Reply With Quote Quick reply to this message
Old 01-11-2011, 06:43 PM   #6 (permalink)
Supporting Member
Senior Member
 
Join Date: Mar 2001
Location: Grayson, GA (Atlanta)
Posts: 4,258
Default

Here's the block in my original June 67 289 engine. If I wasn't positive it was a 289, I would be fooled. The heads are marked as 289.


__________________

68 GT Vert - J Code (1st car I ever drove in '73, dad bought it in '71)
67 C Code Vert Sports Sprint (1st car I ever bought in '75)
06 Vista Blue with Pony Package (1st Mustang I ever bought new)
MCA #49294 Grayson, GA (Atlanta)
daves67ss is offline   Reply With Quote Quick reply to this message
Old 01-11-2011, 09:35 PM   #7 (permalink)
Senior Member
 
ylexot's Avatar
 
Join Date: Aug 2000
Location: Garner NC
Posts: 4,640
Default

Keep in mind a lot can happen in 45 years or so. How many guys have built roller 302's into 347's? External casting codes don't tell that story. Pull the pan and look for the crank code (1U, 2U) if you really care. Don't see what difference it would make. The internals are the only thing specific to a 289 or 302, and they seem to be in place already.
__________________
Formerly of the Permanently Addicted...
Let it be known that I do not street race or condone that sort of thing
- unless the 'b@stard deserves it.
Someone takes his pants off and the rafters knock
Rock is dead they say
Long Live Rock!
67 conv. 289 4spd(mine), 67 coupe 289 Export(swmbo's)

ylexot is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 01:21 AM   #8 (permalink)
Senior Member
 
PonyDoc's Avatar
 
Join Date: Jul 2001
Location: Central Florida
Posts: 1,905
Thumbup 289 vs 302

Date codes are the best bet. 68 and up- 302. You can build a 289 from a 302 and vice versa, but make sure you use the correct push rods. I had a 302 block done as a 289 w/ 289 heads, but they used 302 rods- snapped 3 rocker arms before we found the problem! They are .13" longer! Unless you need a show dated engine ( like they're going to pull the starter to see date codes, the water pumps and castings on the housing just behind the pump will show the difference. Find a mexican 302 and build a hi-po!
PonyDoc is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 10:53 AM   #9 (permalink)
Senior Member
 
yelostang's Avatar
 
Join Date: Aug 2000
Location: South Florida
Posts: 10,218
Default

Many late 68 C Code 289's had 302 cast into the block...in the lifter galley. Had one and it had the vin* stamped on the block just forward of bell housing and behind intake manifold.
yelostang is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 02:33 PM   #10 (permalink)
Senior Member
 
wilit's Avatar
 
Join Date: Apr 2009
Posts: 932
Default

Why don't you just measure the stroke to see if it has a 289 or 302 crank? Looking for casting codes isn't going to tell you much.
wilit is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 03:00 PM   #11 (permalink)
Senior Member
 
Join Date: Sep 2006
Location: SE Wisconsin
Posts: 18,632
Crazy

Quote:
Originally Posted by wilit View Post
Why don't you just measure the stroke to see if it has a 289 or 302 crank? Looking for casting codes isn't going to tell you much.

Great idea! Trick is do it with the heads and pan on!
__________________
My '64 1/2 vert. Ordered May '64. D code 4 speed, handling package, caspian blue, accent group, Ford blue manual top.

'68 vert. driver. Owned since '77. C code AT, AC, PS, P disc B, PT lime gold, standard black interior and top. NOS RF fender and left quarter.New top and folding glass.
slim is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 06:05 PM   #12 (permalink)
Senior Member
 
wilit's Avatar
 
Join Date: Apr 2009
Posts: 932
Default

Quote:
Originally Posted by slim View Post
Great idea! Trick is do it with the heads and pan on!
This is one of those, you can't have your cake and eat it too type scenarios. If the OP really wants to know, he's going to have to take a head off and measure it.

Do cranks even have casting numbers? I don't know that I've ever seen one on a crank. Then again, I've never looked for one.
wilit is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 06:16 PM   #13 (permalink)
Senior Member
 
22GT's Avatar
 
Join Date: Jun 2009
Location: Southeastern Pennsylvania
Posts: 24,416
Default

Quote:
Originally Posted by wilit View Post
Do cranks even have casting numbers? I don't know that I've ever seen one on a crank. Then again, I've never looked for one.
Just codes. The 289 would be "1M", and the 302 would be "2M", or "2MA". Pull the oil pan and you'll know.

__________________
Amateur restorer. Well, sometimes I have been paid for it. But not right now.
22GT is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 06:33 PM   #14 (permalink)
Senior Member
 
Join Date: May 2009
Location: QUEEN CREEK AZ
Posts: 1,248
Default

Does it matter?
__________________
Sense is not as common as you think.
17" MB Old School wheels from discount tire (a lot of people ask)
http://i69.photobucket.com/albums/i5...l/DSCF3220.jpg
OCHOHILL is offline   Reply With Quote Quick reply to this message
Old 01-13-2011, 08:02 PM   #15 (permalink)
Senior Member
 
QuickV8.com's Avatar
 
Join Date: Nov 2010
Location: Gainesville, FL
Posts: 216
Default

ok thanks. i'm about to check.
__________________
http://avatars.ibsrv.net/ibsrv/res/s...ine=1317665490
ModifiedBeasts.com
2004 SVT Cobra 281 M6 · 498.5 RWHP · Stiegemeier Stage 4 Ported M112 Supercharger·Steeda 2.81 Pulley·MotoBlue Pulleys+more
Other Toys: 1967 Mustang 306 M5·1979 Firebird Formula 403 A4·1993 Camaro Z28 355 A4·1997 Mustang GT 281 M5·1987 Mustang GT 302 M5
QuickV8.com is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Vintage Mustang Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
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.



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 On
Trackbacks are On
Pingbacks are On
Refbacks are Off


Powered by vBadvanced CMPS v3.2.2

All times are GMT -4. The time now is 08:05 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.3.2 ©2009, Crawlability, Inc.