I have not seen a taller valve cover on a 66 stock 289 in the last 20 years I've been working on these cars everyday, but I learn something new everyday. Maybe I'll see some soon, but I won't hold my breath.
The change was not to the height from top to bottom as much as to the angle of the top. Mid year they became squarer, so that the area around the breather was flush to the top rather having a bubbled area. The other change was the notches they put along the gasket edge to accomodate the Thermactor (T/E) sytem air logs for the California "smog" equipped cars.
My July built 66 GT fastback I had years ago had the later style 67 valve covers, as does the Aug 3, 1966 coupe I am parting out right now, both had the original drivetrains and were Dearborn built with vins over 700,000. My April 66 built convertible has the early style covers. If you haven't gotten a copy of Bob Mannel's book and own a Mustang with a 289, you are missing out on a great wealth of information, it is practically the "bible" of the early 62-69 smallblocks.
I wanted to replace the inner and outer tie rods. I removed the outer tie rod a few days ago (before I did I marked both to give my the right measurements for the new ones). Today I wanted to remove the innner tie rod on the driver side. Nope! It refuses to let loose. The car is on axle...
I have a '66 coupe with a 289 C-4 auto power-train, and I'm looking to refresh the stock front end. I'm interested in a kit, or guidance on putting together a parts list. I've searched the site for similar strings but most are kinda old.
Everything looks worn and sounds creaky when driving...
Well I just received my roller idler arm from OTR and totally misread the instructions. Instead of inch pounds I used foot pounds! John was nice enough about it but I feel like a dope. Guess I need to get my vision checked and go to the head of the class!
Does a high flow water pump really cool better?
Wouldn't it move water through the radiator more quickly and not allow it to cool as much or is my thinking wrong on this? Wouldn't a standard flow water pump cool better?