4.6 / 5.4 FORGED Pistons, Rings & Rod Kit Combo

Turn you engine into a indestructible, boost ready BEAST with this kit from MMR. Planning a s/c, turbo or high HP build, these are a MUST!

Kit Features Manley Forged Pistons ( All compression ratios ) ,4340 Forged H beam Rods by MMR and Total Seal Piston Rings . Designed to handle up to 950 HP.  Works with ALL factory crankshafts. Available for Stroker and Non-stroker (4.6) applications and 5.4. For those comparing this kit to MMR kit PN# OPT2, the main difference is this kit has all compression ratios available. Fits: 1996-2004 Mustang GT 2005-2010 Mustang GT 1996-2004 Mustang Cobra 1996-2010 5.4 F150 / F250 / LIGHTNING and 2007-2015 GT500


Manley Forged Pistons  (select Bore & Dish size below)

MMR Forged H Beam Connecting Rods

Manley Chromoly Piston Pins

Total Seal file fit Rings

Due to variances in engine builder opinions, Pin bushing and Bearing bore may require final sizing to suit your engine builders preference. Rod Bolt torque 55 FT LBS NEVER USE A IMPACT GUN TO LOOSEN OR INSTALL ROD BOLTS!!


  • Model: OPT3
  • Manufactured by: MMR

Sale: $1,317.49
Save: 15% off

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