MMR Shortblock

bigz5000 · August 18th, 2010, 12:10 AM

Has anyone purchased an in stalled an MMR shortblock for a 96-98 cobra.

The block the use is from an 03-04 cobra and is cast iron. Pros? Cons?

NEED HELP QUICKLY

Here are the specs:

MMR 4.6 Street Mod 600 (up to 600 RWHP) 2V, 3V or 4V
The perfect replacement for your forced induction or NOS GT

*Brand New Cast Iron 2004 Cobra Block, torque plate bored and honed
*New Ford Racing Cast Iron Crankshaft rated up to 600HP (8 bolt or 6 bolt)
*New 4340 5.933 MMR (Modular Mustang Racing) I-beam Rods, these rods are
shotpeened, magnafluxed and weight matched w/ ARP Hardware
*New Forged Manley lightweight pistons
*Speed Pro file fit rings (precision file fit to your application,
nitrous, blower, turbo or N/A)
* Tri-metal Rod and Main bearings
*Complete Pro Assembly and Balancing for the smoothest, highest revving
shortblock available, Pre-Lubricated with Royal Purple Assembly Lube and spin tested. Lastly 3 technicians sign off on your new engine prior to packaging and crating.

$2500

Scott2001GT · August 18th, 2010, 12:35 AM

Nos Gt?

Mach Boy · August 18th, 2010, 12:40 AM

The only con will be that it's iron and your previous block was aluminum. The pros are it can handle a bunch of power. Your heads and intake will bolt right up to this.

Mach Boy · August 18th, 2010, 12:52 AM

Originally Posted by Scott2001GT

Nos Gt?

It was a special edition Mustang GT that was built for use with nitrous oxide just like some of the Saleen Focuses.

DickH · August 18th, 2010, 01:02 AM

you would be better off using your block and buying a rotating assembly from them.

bigz5000 · August 18th, 2010, 08:15 AM

Well, that was my plan, until i got inside the engine.

I spun two main bearings and burned the crank pretty bad. I'm not sure if my block is reuseable with out having it line bored. Buying the short block isnt a huge price difference than piecing it together, plus i could probably sell my forged rods.

Will my computer harness hook right up to this?

Mach Boy · August 18th, 2010, 10:05 AM

It's a direct swap. Slap your heads, intake, wiring, ect ect onto the block MMR sends you.

bigz5000 · August 18th, 2010, 10:37 AM

Would i need to get the car retuned?

Mach Boy · August 18th, 2010, 01:19 PM

If you keep the compression ratio the same on your pistons as your old block no tune would be necessary. The only difference, like I said before, is just the increased weight from the iron block and the stronger components in the motor.

The only reason you would need a retune is if you change your compression ratio. If you don't change the piston compression, put the heads on, intake, wiring, all the old stuff. Pretend it was your old motor. Everything will be fine.

August 18th, 2010, 12:10 AM	#1
bigz5000 Regular 1998 Mustang Cobra Join Date: Apr 2010 Location: Kansas Posts: 111 iTrader: 0 reviews	MMR Shortblock Has anyone purchased an in stalled an MMR shortblock for a 96-98 cobra. The block the use is from an 03-04 cobra and is cast iron. Pros? Cons? NEED HELP QUICKLY Here are the specs: MMR 4.6 Street Mod 600 (up to 600 RWHP) 2V, 3V or 4V The perfect replacement for your forced induction or NOS GT Brand New Cast Iron 2004 Cobra Block, torque plate bored and honed New Ford Racing Cast Iron Crankshaft rated up to 600HP (8 bolt or 6 bolt) New 4340 5.933 MMR (Modular Mustang Racing) I-beam Rods, these rods are shotpeened, magnafluxed and weight matched w/ ARP Hardware New Forged Manley lightweight pistons Speed Pro file fit rings (precision file fit to your application, nitrous, blower, turbo or N/A) Tri-metal Rod and Main bearings *Complete Pro Assembly and Balancing for the smoothest, highest revving shortblock available, Pre-Lubricated with Royal Purple Assembly Lube and spin tested. Lastly 3 technicians sign off on your new engine prior to packaging and crating. $2500 __________________ MMR Built Short Block, Vortech V1 Supercharger, AIS Methanol Injection, BBK LT's, X Pipe, Flowmasters, Steeda Springs, Tokico Shocks, Spec 2+ Clutch, Tri Ax shifter, 4:10's, SCT Tuner

August 18th, 2010, 12:35 AM	#2
Scott2001GT BYAHHHH! 2001 Mustang GT 13.874 Join Date: Mar 2008 Location: Missouri Posts: 14,793 Blog Entries: 1 iTrader: 3 reviews	Nos Gt? __________________ Precision Turbo\|TurboSmart\|TeamZ\|Strange\|Hellion\|BBK\|SCT\|Edge Converters\|Fairbanks\|CG Fabrications\|Treadstone

August 18th, 2010, 12:40 AM	#3
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,846 Blog Entries: 1 iTrader: 1 reviews	The only con will be that it's iron and your previous block was aluminum. The pros are it can handle a bunch of power. Your heads and intake will bolt right up to this. __________________ Looking for 03/04 4V ABS Wiring Harness Connector/Incomplete Wiring Harness (with ABS connector)

August 18th, 2010, 08:15 AM	#6
bigz5000 Regular 1998 Mustang Cobra Join Date: Apr 2010 Location: Kansas Posts: 111 iTrader: 0 reviews	Well, that was my plan, until i got inside the engine. I spun two main bearings and burned the crank pretty bad. I'm not sure if my block is reuseable with out having it line bored. Buying the short block isnt a huge price difference than piecing it together, plus i could probably sell my forged rods. Will my computer harness hook right up to this? __________________ MMR Built Short Block, Vortech V1 Supercharger, AIS Methanol Injection, BBK LT's, X Pipe, Flowmasters, Steeda Springs, Tokico Shocks, Spec 2+ Clutch, Tri Ax shifter, 4:10's, SCT Tuner

August 18th, 2010, 10:05 AM	#7
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,846 Blog Entries: 1 iTrader: 1 reviews	It's a direct swap. Slap your heads, intake, wiring, ect ect onto the block MMR sends you. __________________ Looking for 03/04 4V ABS Wiring Harness Connector/Incomplete Wiring Harness (with ABS connector)

August 18th, 2010, 01:02 AM	#5
DickH MM Fanatic 2003 gt 5.4 32v on the way Join Date: May 2007 Location: Omaha Posts: 4,189 iTrader: 2 reviews	you would be better off using your block and buying a rotating assembly from them.

August 18th, 2010, 10:37 AM	#8
bigz5000 Regular 1998 Mustang Cobra Join Date: Apr 2010 Location: Kansas Posts: 111 iTrader: 0 reviews	Would i need to get the car retuned? __________________ MMR Built Short Block, Vortech V1 Supercharger, AIS Methanol Injection, BBK LT's, X Pipe, Flowmasters, Steeda Springs, Tokico Shocks, Spec 2+ Clutch, Tri Ax shifter, 4:10's, SCT Tuner

August 18th, 2010, 01:19 PM	#9
Mach Boy MM's Orangest 2004 Mach 1 Mustang Join Date: Sep 2007 Location: Indy Posts: 2,846 Blog Entries: 1 iTrader: 1 reviews	If you keep the compression ratio the same on your pistons as your old block no tune would be necessary. The only difference, like I said before, is just the increased weight from the iron block and the stronger components in the motor. The only reason you would need a retune is if you change your compression ratio. If you don't change the piston compression, put the heads on, intake, wiring, all the old stuff. Pretend it was your old motor. Everything will be fine. __________________ Looking for 03/04 4V ABS Wiring Harness Connector/Incomplete Wiring Harness (with ABS connector)

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