rebuild or refresh

[tennjohn222]

5.0 H.O. only has 68,000 on it rebuild or refresh just looking for budget right now. want to get it back to a daily driver. When i get into it hard and red line it, seems like it misses (cutting in and out very quick). and how much am i looking to pay for this motor work. Just an estimate to get me started. Car is a salvaged title.

[XSR]

The cutting out could be the rev limiter, bad fuel/ignition system, or valve float. You need to have it gone over by a good machanic, and he can tell you the best way to go.

[93fakesnake]

X2

[SVTSkip]

All good things, and here's a couple more to consider: I've had some seriously high mileage 5.0's in the past, and would never consider 68K to be many miles, but the factory springs could be a little week, although it's more likely that you're simply over revving the engine. If the engine is stock as I suspect it to be, then revving anywhere past 5300 rpm is a complete waste of time. It might sound like it's going, but you're actually losing power, and going slower at the track. You'll notice that this is nowhere near "redline", nor where the ECM kills the party for you which is 6250 rpm. Your ignition system could certainly need a little attention, and some general maintenance items like plugs/wires/rotor cap/button, and even the fuel filter along with cleaning out the IAC/TB and such can all contribute to a much better running car. If you're not comfortable checking it out yourself, see if you can get someone knowledgeable in your area, or take it to a good shop, but I know I've thrown H/C/I packages at 160,000 mile cars without much more than a cursory glance to see what kind of shape the bores were in. These things can handle a pretty decent bit !

[WILDSTANGRACING]

really sounds like valve float for that mileage it shoud not need a rebuid

[93whitelxcoupe]

Be willing to bet the bottom end is fine. Sounds like new head gaskets and a valve job on the heads (along with new springs) will help out. Might consider doing a H/C/I swap instead.

[tennjohn222]

H/C/I = ? I am new to working on cars the only thing i have worked on is my jeep and that was just take off and replace. i am gonna need barney explanations please. Thanks for all the input.

[Quinn]

H/C/I = ? I am new to working on cars the only thing i have worked on is my jeep and that was just take off and replace. i am gonna need barney explanations please. Thanks for all the input.

h/c/i is head, cam, and intake right?

[Silver91Hatch]

Right.

[SVTSkip]

H/C/I = ? I am new to working on cars the only thing i have worked on is my jeep and that was just take off and replace. i am gonna need barney explanations please. Thanks for all the input.


No worries ! Basically we're thinking that with as low of mileage as you have on your car, that there really isn't any damage or wear that would require a rebuild. If you're going to make changes though, why not swap in a matched set of aftermarket cylinder heads, intake manifold, and camshaft that will compliment each other as far as operating rpm, and make you an extra 100 or more horsepower in the process. If we use a basic entry level off the shelf cam/intake/cylinder head combo, you can still expect to pick up somewhere around 70 horsepower or so, and with the car feeling so much stronger, it's usually a LOT more fun to drive ! I'm not sure what the shop labor rates would be for installation, but the parts would cost around $2500 or so for a nice combo that would give you an extra 100-125 horsepower, and you might even be able to find enough local talent that might be willing to simply come help you for free cold beer. A number of us in another club did just that for a member that needed a lot of work done and could swing the labor charges. Might be something to look into...:thumbsup1: