Does that MMR900 shortblock comes forged ? What else do I need ? or just put the Head in
Yes, the MMR900 comes with forged pistons. Here is a description:
MMR 4.6 Street Mod 900 (up to 900HP) <b>$2800</b>
*Brand New Cast Iron 2004 Cobra Block, torque plate bored and honed
*New 4340 Forged 3.543 stroke Cobra Crankshaft w/micro polished journals at no extra charge
*New 4340 5.933 Manley H-beam Rods w/ARP rod bolts ( These US made rods are shotpeened, magnafluxed and weight matched to bring you the finest H-beam rod available for your 4.6
*New Forged Manley pistons 3.552 Bore size (High or low compression)
*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 (extra charge):
Coated Pistons (ceramic dome/teflon skirt) $399.99
Brand New Current production Aluminum Block +$399.99
ARP 2000 Rod Bolt Upgrade (recommended for 900+HP) $99.99
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
That shortblock can handle +700WHP . But you will also need the cylinder heads (you could use the stockers or go aftermarket).