there is a 5.0 for sale in my area. it came from an 87 mustang gt. it has EFI and i am wondering is this a "Roller Motor". also want to know the advantages of a roller motor compared to my 71 block. like does it produce more HP, less RPM, or is it just another motor? side note; it has 163000 miles on it looks to be leaking from the valve covers and oil pan. owner bought the car some 150 miles away, drove it home with no problems-he says. no over heating etc. but why replace with new? yes im a pestamist, i know! just want this maverick running already. Thank for the help and info in advance, Rick http://tucson.craigslist.org/pts/2257072333.html
If its an 87' its a roller cam/valvetrain engine...As long as its original to the car. Roller cams/valvetrain allow for less friction and better engineered cam profiles which can take advantage of the roller lifters ability to keep up with a fast ramp speed(lobe profile) which allowes for more high rpm durability of the valve train/cam... If its a leaker...Thats not really an issue,your gonna go through it and replace gaskets anywhoo before you install it in your ride. As long as it doesnt knock/bang/rattle or blow blue smoke/coolant out the tail pipe it should be a good project piece.
Yes price is fair, it also comes with the same heads you already have e7's so you can sell them back off as well. Rick its the same motor thats in my mustang, you rode in. If you remember Same motor I am running in my maverick as well, and as well as many of us on the boards.
right on! now if i can just get my wife to go along with the deal, i could have my grabber up and running soon. thanks everyone yes adam i remember! i remember looking over and seeing the speedometer reading 120 mph and you had not hit the big hole yet. hold on everyone....his speedo was not working right.
forgot one thing,,,, the ad reads that its a 5.0 H O. How do i know this to be true when i go to buy it?
ford put a few things on the out side of the 5.0 ho motors but anybody could transfer those. the tue way to tell is to get the part number off the cam shaft. now thats not practcal. sence the motors valve covers and oil pan are leaking oil (common on that era of 5.0) theres a fair chance that is the origanl motor for the 87 mustang. the motor should have the cast aluminum valve covers with a 3" tall tube coming up out of the front of the passenger side. the upper intake manifold cover should look like this. that is one of the best years of the 5.0 motors. it has forgged pistons, the e7 heads and the ho roller cam. that mileage is alittle high. if regular oil changes were done with quailty oil then the motor could have another 100,000 miles left in it. if it was abused then it could need to be rebuilt now.
take the intake off, if it has a spider web looking piece of sheet metal in the valley your good to go. More than likely if he has a mustang in the driveway, its going to be an HO. And when my speedo reads 120, its only doing about 75 FYI LOL
from the pictures in my first post with the link to craigslist, http://tucson.craigslist.org/pts/2257072333.html it looks like what bryant described. ill find out when i get there and pull the intake. the seller talks like he does not know what i am looking for. so ill take along a set of metric sockets and look for the spider like valley pan. thank you all, wish me luck-after all, i still have to get it by my wife!
the intake bolts are sae not metric. you will need a small torx bit or driver to take off the plate on the upper intake.
One of the best descriptions of a roller motor, as compared to a non-roller, was made by a member who got into harleys and never comes around here anymore... His description was "One time I was driving my 302 like a bat out of hell and the fan belt spun off, and it felt like I had a 2-stroke motorcycle with a "powerband". It just lit up and took off with the freed up horsepower." that is kind of how the roller feels compared to the non-roller engines. It feels like it spins faster and more freely, and seems to wind up a bit more quickly. I have read that converting from non-roller to roller tipped rocker ALONE frees up 15 horsepower. Imagine that over each lifter, and then changing the cam lobe to open and close at a more profound rate! If you can do it, do the roller. I have never regretted converting mine over to roller. Not to mention the lack of having to "break in" a flat-tappet cam. Very stressful...
No need to pull the intake, just remove one valve cover, one rocker arm, pull the pushrod out. Roller 5.0 pushrods are 6.25" in length. Flat tappet rods are about a half inch longer. The casting number on the bottom rear of the block is also a good indicator (though not 100% as the 87-92 E & F series 5.0's vans and pickups had roller blocks with flat tappet cams) Some of the Roller casting numbers I've seen are E5AE, E6SE, E7TE, F1SE.
You're a lil bit off here. Ford found a 15 HP increase in the 93 Cobra 5.0 in going with full roller 1.7 rockers (trunion and tips) Some of that was in the extra .030 lift, the majority was in the roller trunion (pivot)
