How to find out what year a 302 block is... - Canadian Mustang Owners Club - Ford Mustang Forums

5.0L Ford Mustang 5.0L discussion area for heads, rebuilding, tuning, idle issues and all other modifications and performance parts.

How to find out what year a 302 block is...

Reply

 
 
 
Old 11-24-2004, 06:23 PM
  #1  
CMOC Veteran
Thread Starter
iTrader: (1)
 
Join Date: Oct 2004
Posts: 234
How to find out what year a 302 block is...

How can we find out what year a 302 block is,is there any special casting number to go by.........or a code or something.thanks.
AIRRIDE is offline  
Reply With Quote
Old 11-25-2004, 11:24 PM
  #2  
CMOC Rookie
 
Join Date: Oct 2004
Posts: 89
on the casting number of the block the first letter is the decade. starting at C=60's, D=70's, E=80's,F=90's then the 2nd number behind it is the yr. for a 302 starting at 68. so it would be C8****** and say a 75 302 would be D5******* and like a 5.0 roller block would start at 85 and be E5******

hope this helps. heads and intakes are the same way.
freakshow12 is offline  
Reply With Quote
Old 11-26-2004, 05:46 PM
  #3  
CMOC Veteran
Thread Starter
iTrader: (1)
 
Join Date: Oct 2004
Posts: 234
Thanks for the info I will check it out.
AIRRIDE is offline  
Reply With Quote
Old 12-23-2004, 03:52 PM
  #4  
CMOC Rookie
 
red82gt's Avatar
 
Join Date: Dec 2004
Location: Kelowna, B.C.
Posts: 35
You won't be able to determine the exact year since they only change the part number when they make changes to the casting. In other words, a 93 mustang 5.0L will have an E7 block.
red82gt is offline  
Reply With Quote
Old 01-01-2005, 11:07 PM
  #5  
CMOC Elite
iTrader: (2)
 
Scones's Avatar
 
Join Date: Dec 2004
Location: Windsor, Ontario
Posts: 1,775
which could be a real pain if you wanted forged pistons (assuming it's an assembled short/long block) and end up with hyperusucktics
Scones is offline  
Reply With Quote
Old 01-02-2005, 09:55 AM
  #6  
CMOC Veteran
 
Schlodes's Avatar
 
Join Date: Dec 2004
Location: Lidsville, Ontario, Canada
Posts: 407
Originally Posted by red82gt
You won't be able to determine the exact year since they only change the part number when they make changes to the casting. In other words, a 93 mustang 5.0L will have an E7 block.
I am 99% sure it was in 86 that they went to the better, heavier duty, stock block. I think that the 86 and up blocks are all the same, and then in 87 all they changed were the pistons [still forged but w/ valve reliefs] and went to the E7 heads. So, I guess you'd look for "E6", then if whatever you're looking at, has pistons, look for valve reliefs or not.. to determine if its 87 - newer.
Schlodes is offline  
Reply With Quote
Old 01-02-2005, 03:14 PM
  #7  
CMOC Elite
iTrader: (2)
 
Scones's Avatar
 
Join Date: Dec 2004
Location: Windsor, Ontario
Posts: 1,775
I think I've read every change they've made for the 86s and a new block wasn't one of them, I knwo they made the new block for 85 and newer, 86 had flat top forged pistions, that changed in 87 for the valve relief, right up until the 90s when they went to hypereutectics....
Scones is offline  
Reply With Quote
Old 01-02-2005, 06:18 PM
  #8  
CMOC Veteran
 
Schlodes's Avatar
 
Join Date: Dec 2004
Location: Lidsville, Ontario, Canada
Posts: 407
No, I'd have to dig it up here, but the 86 had a better as cast block than the 85s. 85s were the first year for roller cam shaft and forged pistons [8.4:1 I think].
Schlodes is offline  
Reply With Quote
Old 01-02-2005, 06:31 PM
  #9  
CMOC Veteran
 
Schlodes's Avatar
 
Join Date: Dec 2004
Location: Lidsville, Ontario, Canada
Posts: 407
I found it...

Schlodes is offline  
Reply With Quote
Old 01-02-2005, 09:29 PM
  #10  
CMOC Elite
iTrader: (2)
 
Scones's Avatar
 
Join Date: Dec 2004
Location: Windsor, Ontario
Posts: 1,775
I guess according to that article I'm wrong...forgive me. then again it also calls the high swirl heads useless for performance, and I'm almost running 12s with them lol

seriously though, I've never heard of the block changing from 85-86, i'm glad it did though
Scones is offline  
Reply With Quote

Quick Reply: How to find out what year a 302 block is...


Contact Us Sitemap Advertising Cookie Policy Privacy Statement Terms of Service

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.