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4.6L General Discussion This section is for non-tech specific information pertaining to 4.6L (Modular) Mustangs built from 1996 to 2004.

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Old 05-05-2011, 01:57 PM   #11
bentr1587
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I was under the impression that I had a longblock...is that not the case? It's just the stock 2v 4.6L.

Is there any mounting modification, etc. needed to use the shortblock?

Sorry if I sound like an idiot. When it comes to all this stuff, I kind of am.
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Old 05-05-2011, 03:13 PM   #12
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All engines can be a long block or short block
Long block = Block, all internals and Heads
Short Block = Block and all internal
Short and long does not refer to a type but how far the new or rebuilt engine is assembled
With your limited knowledge you might want to find a used engine.
Are you sure you have a bad rod? Just seems weird that some one that does not know what "IMO" and the difference between a long and short block could diagnose a bad rod correctly
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Old 05-05-2011, 05:47 PM   #13
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I know it sounds really stupid,, but have you checked your belt? I had one go bad a few weeks back, and part of the belt came off(the ribbed part) and when it spun, it knocked from the belt catching, and than slipping... sounded internal until I looked at it..
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Old 05-05-2011, 06:44 PM   #14
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Good to know. I have friends that know all this crap so I just ask them. Have access to tools, hydraulic lift, etc. that way too. The most complex work I've done is replaced my clutch. As far as getting into the engine's internals, that's where you lose me. I've had a few people I know and a mechanic or two listen to the car and some used a stethoscope and they said I got a rod goin bad in my 6th cylinder and the crankshaft is goin too.
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Old 05-06-2011, 03:47 PM   #15
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Thanks for all the input guys. I've been talking to MMR. Looking at getting a shortblock from them since all my issues seem to be Bottom End. I appreciate the help.
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Old 05-06-2011, 04:04 PM   #16
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I will have a good running complete engine in about 6 months out of my car. Doubt this helps but like a few said find a salvage yard engine and put a few boltons on it.
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Old 05-06-2011, 09:01 PM   #17
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Too bad your not in florida. I have a stock shortblock in my garage.
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Old 05-08-2011, 02:40 AM   #18
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Quote:
Originally Posted by Ryan86272 View Post
Too bad your not in florida. I have a stock shortblock in my garage.
Yeah I'm a bit of a ways away. lol
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Old 12-04-2012, 05:02 AM   #19
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Quote:
Originally Posted by Bmitchell373 View Post
MMR Street Mod 600 (up to 600 RWHP) SALE $2299 Done deal, just replace your old short block engine with this.
OR
MMR Street Mod 600 Forged Rotating assembly (96-04 2 valve only) $1499.99 Take your block to a machine shop, have it inspected and machined if necessary, and have this kit installed. Itll be more effort, but could save a few pennys for some basic mods.
I have been reading alot of these posts to gather some information on my own build. I was wondering about buying the right kit for your care. Don't get me wrong I don't have much knowledge on how the rebuild process works. I'm just not wanting to get the wrong kit for my block which is a 1999 PI motor with some bolt on's. I keep breaking it so I want to get something that I can really get down in. I see a supercharger in my future as well .

I have been calling around and for a remanufactured engine I might as well get the motor I want but looking to play with 3k on this one. Maybe more but the priority is to get my car fixed before the rod knock does it in.
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Old 12-04-2012, 05:02 AM
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2001, 281, 351r, 4.6, 46l, 96, crankshaft, engine, gt, mmr, modular, mustang, racing, rebuild, rod knock, shortblock, tampa

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