Blown and blown up 4.6

J smitty · Feb 12, 2009

Ok so my 2004 gt has a vortech t-trim and a recently found spun bearing. I could either waste like another 1000 dollars or get a short block. But I hear they are a bitch to install. Any info or suggestions on what I should do or shortblock to buy Im thinking about this one MMR-800 - MMR 4.6 Street Mod 800 (up to 800HP) 2V, 3V or 4V - Shortblocks - Mustang Performance Parts

lazerred02 · Feb 12, 2009

J smitty said:
Ok so my 2004 gt has a vortech t-trim and a recently found spun bearing. I could either waste like another 1000 dollars or get a short block. But I hear they are a bitch to install. Any info or suggestions on what I should do or shortblock to buy Im thinking about this one MMR-800 - MMR 4.6 Street Mod 800 (up to 800HP) 2V, 3V or 4V - Shortblocks - Mustang Performance Parts

What do you mean a bitch to install? Pulling the motor and swapping everything over to the new block is not to bad as long as you are decent at turning wrenches and have the right tools for the job.

Dragstr05 · Feb 12, 2009

lazerred02 said:
What do you mean a bitch to install? Pulling the motor and swapping everything over to the new block is not to bad as long as you are decent at turning wrenches and have the right tools for the job.

+1

You really dont have much of a choice anyway. Its really not that difficult if you have the right tools and know your way around a car. A mustang engine is also quite easy to pull compared to most. If you know how to unplug connectors and remove some nuts and bolts you basically know how to pull an engine. Just pick up a repair manual and take your time.

J smitty · Feb 12, 2009

ya Just the idea of it is upsetting. I installed the vortech myself and fairly mechanicaly inclined. So whats gonna catch me up? there haas gotta be something that sucks? Also what should I do about my motor? which one should I get?

lvmustanggt · Feb 13, 2009

Get MMR 900 for little more cash.

BlownStangGT · Feb 13, 2009

lvmustanggt said:
Get MMR 900 for little more cash.

I agree 100%. Yes the MMR 800 is nice, but since they are on sale right now from MMR directly, the MMR 900 is only $100 more and I think you are getting better parts! Especially since you have a T-Trim, you might as well get a great shortblock so you should not have to worry about it agian

Now you said you installed your vortech yourself which is all good but where did you have it tuned? Whats your fuel system like?

J smitty · Feb 13, 2009

Yeah that MMR 900 is probabally top on the list. I got the mongoose kit which had the 42# injectors and the focus pump.

CobraRed_96_GT · Feb 13, 2009

Nice choice on the site for the shortblock LCR FTW, i was looking at one of their shortblocks today for one of their customers going single turbo:

The diff between the 800 and 900 is MMR's h-beams vs Manley h-beams. $100 aint bad considering the difference between the rods retail is more than that.

Putting new rods in and/or putting a new stock block in if it's messed up is nearly the same amount of labor as putting a new forged one in. You just have to transfer stuff over like all the pulleys, oil pump ect.

Blown and blown up 4.6

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