Engine rebuild advice please

Killa · Aug 27, 2007

I own a 98 Ford Mustang GT 5 speed ( just bought under 3 month ), did pi intake swap and find out that my ring is bad, so im thinking about rebuild the engine. Here are some of my ideal I want.

I want the car to be reliable of everyday driving, and can be handle super charge in the furture if I ever put one one, who I be send the engine to for rebuild, please give me much as advise can you guy can please. Thanks

ProCharger GT · Aug 27, 2007

By the time you do a rebuild you might as well just get a forged shortblock.

Killa · Aug 27, 2007

ProCharger GT said:
By the time you do a rebuild you might as well just get a forged shortblock.

Link and info please.

WydOpn · Aug 27, 2007

KillaGT said:
Link and info please.

A few of the typical choices around here...

VT: http://www.vtengines.com/store/index.php?main_page=index&cPath=11_38
MMR: http://modularmustangracing.com/
MPH: http://modularpowerhouse.com/index.php?cPath=21&osCsid=c174fc42af82050aa2135978c6d08eda

2000fordstanggt · Aug 27, 2007

sorry, dont mean to hi-jack the thread or anything but i dont wanna start another identical one. i have a 99 and just like my 00 i smell gas in the oil and it burns a lot of it, also, i pulled out the front driver sparkplug and had oil on the threads. i think my rings, and maybe something else is shot. is there a kit for a 4.6 rebuild? the longblock seems a little pricey.

ProCharger GT · Aug 27, 2007

Trust me, you wanna go with a new shortblock - no longblock necessary. Think about it...your gonna have to yank the engine, tear it apart, replace the rings, and put it all back together. Unless you plan on doing this yourself, it's gonna cost you a lot of money - and a considerable amount of time if your not familiar with doing this - it's a lot easier to go with a nice forged shortblock, especially for future mods. MMR offers a 1 year warranty on their blocks for workmanship defects. That's where I ended up getting my 5.0 stroker from.

WOT · Aug 28, 2007

If you are mechanically inclined I would and did do it myself. I saved about 1800 doing myself as opposed to paying a builder to do it.

It isn't for everyone but if you are able then do it. You might learn something too.

2000fordstanggt · Aug 29, 2007

WOT said:
If you are mechanically inclined I would and did do it myself. I saved about 1800 doing myself as opposed to paying a builder to do it.

It isn't for everyone but if you are able then do it. You might learn something too.

i definitly plan on doing it myself. is there somewhere to find a list of what ill need for the rebuild?

ProCharger GT · Aug 29, 2007

I'd check out http://www.modularmustangracing.com for your parts, or even give them a call; their sales people are very friendly and extremely helpful. Tell them what problem your experiencing, and that you'd like to do a rebuild; maybe they can piece together a custom rebuild kit for your application.

streethorse · Aug 29, 2007

There was a really good article in MMFF a while back, I think it was called
redneck rebuild, where they did a rebuild/refreash job on a 4.6.
The whole point was to see how cheap they could do a quality rebuild.
If I was home I could tell you which issue it was.

BlueGT4.6 · Aug 30, 2007

I was thinking of doing an engine rebuild/upgrade because I want to run more boost than I am now. So I figured on having to get a new forged crank, rods, pistons, and all supporting parts. I looked at the modular mustang racing website and was pretty shocked how the built shortblock costs about the same as all the individual parts. Plus you have the piece of mind that it was built correctly. I'm thinking of eventually just getting the whole new engine, and saving my stock one for a Cobra kit car... Always dreaming...

the98stang · Aug 30, 2007

You're better off letting the real mechanics build your engine. That way everything is to spec, and you know it's done right. I plan on getting a MMR shortblock when my motor gives out.

mransr · Aug 30, 2007

ProCharger GT said:
Trust me, you wanna go with a new shortblock - no longblock necessary.

but what about the heads, timing chains and guides and all the other stuff that doesn't get replaced with a new short block?

IMHO unless you had some sort of mechanical failure in the bottom end of a low mileage motor it makes NO SENSE to just do a short block, you'll just end up having to do a bunch of labor twice (or more)...

ProCharger GT · Aug 30, 2007

mransr said:
but what about the heads, timing chains and guides and all the other stuff that doesn't get replaced with a new short block?

IMHO unless you had some sort of mechanical failure in the bottom end of a low mileage motor it makes NO SENSE to just do a short block, you'll just end up having to do a bunch of labor twice (or more)...

If there's nothing wrong with the heads, timing chains, guides, etc....whats the purpose of replacing them unless he wants to build up the engine? Just transfer them to the new block.

mransr · Aug 30, 2007

it's a 10 year old car with a worn out ring, what are the odds than nothing else is worn out or won't be needing attention in the next year or two?

I say do it once and be done with it :thumbs:

ProCharger GT · Aug 30, 2007

mransr said:
it's a 10 year old car with a worn out ring, what are the odds than nothing else is worn out or won't be needing attention in the next year or two?

I say do it once and be done with it :thumbs:

I agree with getting everything done at once, but the financial aspect does weigh in on these type of situations as well; not everyone can go out and drop another 2K on valve train when there is no indication anything is wrong with the current setup.

the98stang · Aug 30, 2007

Instead of buying a long block you can buy a short block and replace the valves/springs/cams and keep the stock heads. Just as good as a long block, and saves you the money.

rconaway · Sep 1, 2007

Here is my suggestion after a few rebuilds. Buy a rebuilt long or shot block from a reputable manufacturer that has experience like D.S.S., Livernois, or any of the reputable dealers. Be real careful letting general machine shops that are local do it. 3 rebuilds later, I learned my lesson the hardway. If you aren't going to run more than 400hp, buy a used 4.6 long block with less than 30K. There are a lot of them around.

the98stang · Sep 1, 2007

rconaway said:
Here is my suggestion after a few rebuilds. Buy a rebuilt long or shot block from a reputable manufacturer that has experience like D.S.S., Livernois, or any of the reputable dealers. Be real careful letting general machine shops that are local do it. 3 rebuilds later, I learned my lesson the hardway. If you aren't going to run more than 400hp, buy a used 4.6 long block with less than 30K. There are a lot of them around.

I agree, let the pros handle it. Rebuilding it yourself or letting a random mechanic do the job leaves room for error. Last thing you want to do is rebuild the engine, have it pop, and do the job twice. Save yourself the effort and pay a little more to have a reputable company build the engine.

Killa · Sep 1, 2007

Their are 2000+ engine that sell on ebay for 1k with 70k+ miles. Can it fix my 98gt ? my tranny is grind in reverd , but if I put in 4 then rever it will not grind, should I replace the tranny too ? and my clutch is vibrate, its good ideal to to king cobra at the same time ? thanks

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