Ford Mustang Forum banner
Cancel

Ummmmmmm, thats not a 289!

901 Views 5 Replies 4 Participants Last post by  First65, 
First65
Well now, I have been happily wrenching on my 65 mustang coupe for a couple years now. Last fall the motor developed a tick and it was discovered that the exhaust lifter on the #5 cylinder had collapsed. What better opportunity to upgrade! Already has an Edelbrock performer 289 intake installed. PO stated motor was a 289. Any parts that I have been buying have been for a 289. Low and behold I remove the intake and what numbers do I see staring at me???? 302! :surprise:
I have an entire valvetrain set, brand new, sitting in my tool cabinet. My question is........ please tell me these parts are interchangeable?? It is late right now and I can not call Comp customer service until the morning. IT is eating away at me right now.
See less See more
Reply
Save
Like
1 - 6 of 6 Posts
dodgestang
289/302.....same thing....slight different stroke but the top ends are the same
Reply
Save
Like
First65
Yes, thank you. Did more homework last night after discovery. Everything I have will fit nicely. thumbsup3.gif
Reply
Save
Like
R
As long as you don't have a 302 with pedestal rockers you should be fine. Good Luck.
Reply
Save
Like
I
Depending upon the block number, you may have a block intended to be a 302 but it was built at the factory as a 289. As has been said, there is very little difference between the blocks. The crankshaft is the main difference that makes a 302 although there is a small block difference at the bottom of the cylinder bores. Building a 289 in a 302 block is no problem at all. The same pistons are used in either one.
See less See more
Reply
Save
Like
First65
Rex, the heads are stamped 289.
Reply
Save
Like
1 - 6 of 6 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Ford Mustang Forum
A forum community dedicated to Ford Mustang owners and enthusiasts. Come join the discussion about performance, builds, modifications, reviews, engine swaps, classifieds, troubleshooting, maintenance, and more!
Full Forum Listing
Explore Our Forums
2005-2010 Mustang Talk 2011-2014 Mustang Talk 5.0L Tech Classic Tech 2005-2010 Mustang GT Tech
Top