1BadSonicBlue02GT

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Part Number
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MMR 4.6 Street Mod 600 (up to 600HP)
(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 6 Bolt Crankshaft rated up to 600HP
*New 4340 5.933 MMR (Modular Mustang Racing H-beam Rods, these rods are
shotpeened, magnafluxed and weight matched w/ ARP rod bolts
*New Forged Manley pistons 3.552 Bore size
*Speed Pro file fit rings (precision file fit to your application,
nitrous, blower, turbo or N/A)
*Speed Pro/Federal Mogul Tri-metal Rod and Main bearings
*Complete Pro Assembly and Balancing for the smoothest, highest revving
shortblock available.
Shortblock Options:
Coated Pistons (ceramic dome/teflon skirt) $399.99
Brand New Current production Aluminum Block +$699.99 for NA or $729 S/C Blocks
Upgrade to forged crankshaft +249.99
ARP Mainstuds (recommended for 600+HP) +169.99
MMR Street/Racing Oil Pump (highly recommended) + $199.99
ARP Headstuds and MMR/Felpro Extreme Duty Headgaskets + $369.99
MMR windage tray and hardware kit (+15HP) + 129.99
*Due to the custom nature of MMR shortblocks ALL customers paying with a credit card
will be billed when the order is placed (prior to engine assembly and shipping),
All MMR shortblocks are non-refundable regardless if the item has shipped or not.
2,229$

Ok this site says that this is a good uprgrade for a gt but then it says cobra block. i will need new heads and stuff for this correct?

oxfordgt

No all 4.6l blocks are the same basic castings. The only difference between your block and the 04 cobra block is that the cobra has 4 bolt mains and your has 2.

timi

sssoooo, does this mean that i can transfer the rest of my 2v engine onto the cobra block and have a 4v motor?

Fuel

no it mean that u will have a new 2v forged motor, it is just a cobra "block" but u can put ur heads and etc on it

oxfordgt

1BadSonicBlue02GT

So this would be a direct swap? whatelse would i need??

Pitt

Wouldnt it be cheaper to forge your short block?

1BadSonicBlue02GT

well maybe, but this way i get it all balanced and everything and i dont have to screw with the crank, cuz i intend to do all the work i can myself. How much are Forged rotating assemblies by the way? i always find expensiveones. like 2 grand.

So 2 questions. . .

Can i just swap this for my motor?

Where can i find a good rotating assembly to forge it myself for cheaper than this?

1BadSonicBlue02GT

bump

FLMustangMan

hey sonicblue02 i see you live in N. Ft. Myers. i graduated from there in 05 and live in the cape. i am looking at doing the exact same thing from the exact same place(MMR). MMR also sells forged rotating assemballies. just look through the site. i am gonna get some Patriot Performance Stage II heads with their billet cams (similar to Comp Cams Stage II cams). Alaos if you get a big cam get the notched pistons MMR sells for $250. thats what im doing soon