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  • MAP 2.1L Stage 2 Stroker Kit (DSM 7 Bolt / Evo)
  • MAP 2.1L Stage 2 Stroker Kit (DSM 7 Bolt / Evo)

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    MAP 2.1L Stage 2 Stroker Kit

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    If you need to handle more power than our Stage 1 kit can, this is what you're looking for! The Stage 2 kit upgrades the rods from H-beams to I-beams and replaces the standard Wiseco pistons with the HD equivalents.

    The 2.1L stroker combines a stock 2.4L 4G64 block with an OEM 4G63 crank or a 88mm crank and standard pistons to decrease the stock 2.4L displacement. This will allow your engine to rev higher and spool your turbo quickly!

    All Modern Automotive Performance Stroker Build Kits come with ACL Race Series main and rod bearings and ARP main studs for your application. See below for our recommended choices of cranks, rods and pistons. When you choose a MAP Stroker Kit for your build, you're only getting the best based on our experience using these products on our race cars and the hundreds of engine builds we have done over the years!

    Crankshaft

    • Manley Forged "Race Series" 88mm
      Manley "Race Series" Crankshafts feature the following: Premium heat treated forgings; Special teardrop, diagonal oiling features not found on stock OEM style cranks; Better performance at High RPM; Stress Relieved & Shot Peened; Nitrided; 100% Magnafluxed.
    • Manley Billet "Turbo Tuff" 88mm
      Manley "Turbo Tuff" Crankshafts feature the following: 4340 Billet; Multi-step heat treatment process; Stress Relieved and Shot Peened; Nitrided; 100% Magnafluxed; Special teardrop diagonal oiling; Knife-edged counterweights.
    • Eagle 4340 Forged 88mm
      Eagle crankshafts are forged from SAE 4340 steel, feature a non-twist forging, multi-stage heat treat process, stress relieving, shot-peening, and nitriding for superior strength and reliability in the most demanding applications. Each journal is micropolished to a 3 r.a. or better. A .125" radius is used to increase strength, so chamfered bearings must be used. These are the perfect choice for applications up to 1500HP. Approximate weight is 37 pounds.
    • OEM (Customer Supplied)

    Connecting Rods

    • Manley 156mm I-Beam
      Manley Pro Series connecting rods are forged from aircraft quality 4340 vacuum degassed material. Each rod is fully machined in the Manley Lakewood, NJ factory to the highest standards. Their signature "Turbo Tuff" design combines the appropriate weight and rugged strength for ultimate horsepower applications. Each rod is shot peened after machining and magnafluxed. Bores are round and without taper. Bend and twist is tightly controlled. Cap fasteners are 3/8" APR 2000 cap screws.
    • MAPerformance Ultimate Duty 156mm Billet Steel
      The research phase for these connecting rods consisted of a process called Finite Element Analysis which helped us to determine the weakest points of the factory connecting rod design. Using that information we developed a prototype using state-of-the-art CNC equipment that included the finest high nickel AQ4340 billet steel material, Ampco 18 bronze wristpin bushings, Manton alignment sleeves, and massive 7/16" ARP 2000 series fasteners. In the final development phase the prototype was heat treated, fully stress relieved, and shot peened to ensure that no stress risers or surface imperfections remain. The end result: A 652 gram connecting rod that we feel is the strongest and most reliable steel connecting rod available on the market for this application.
      Due to the design of these rods, they are ONLY compatible with a combination of 6 Bolt ACL rod bearings and an OEM Mitsu 88mm crank.

    Pistons

    Wiseco Sport Compact pistons are made from dedicated forgings produced in-house to give you a light weight piston with superior strength and optimal design. With Wiseco being the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride/napier xx rings and optimized skirt profiles. The pistons come standard with their ArmorGlide coating material for reduced friction and noise, freeing up horsepower.

    • Wiseco 1400HD / 86.5mm Bore (Standard)
    • Wiseco 1400HD / 87.0mm Bore (.020" Over)

    Disclaimer

    Based on the usage of the early 4g63 rod bearings the MAP connecting rods will ONLY work when utilized with an OEM Mitsubishi crankshaft.

     

    If you need to handle more power than our Stage 1 kit can, this is what you're looking for! The Stage 2 kit upgrades the rods from H-beams to I-beams and replaces the standard Wiseco pistons with the HD equivalents.

    The 2.1L stroker combines a stock 2.4L 4G64 block with an OEM 4G63 crank or a 88mm crank and standard pistons to decrease the stock 2.4L displacement. This will allow your engine to rev higher and spool your turbo quickly!

    All Modern Automotive Performance Stroker Build Kits come with ACL Race Series main and rod bearings and ARP main studs for your application. See below for our recommended choices of cranks, rods and pistons. When you choose a MAP Stroker Kit for your build, you're only getting the best based on our experience using these products on our race cars and the hundreds of engine builds we have done over the years!

    Crankshaft

    • Manley Forged "Race Series" 88mm
      Manley "Race Series" Crankshafts feature the following: Premium heat treated forgings; Special teardrop, diagonal oiling features not found on stock OEM style cranks; Better performance at High RPM; Stress Relieved & Shot Peened; Nitrided; 100% Magnafluxed.
    • Manley Billet "Turbo Tuff" 88mm
      Manley "Turbo Tuff" Crankshafts feature the following: 4340 Billet; Multi-step heat treatment process; Stress Relieved and Shot Peened; Nitrided; 100% Magnafluxed; Special teardrop diagonal oiling; Knife-edged counterweights.
    • Eagle 4340 Forged 88mm
      Eagle crankshafts are forged from SAE 4340 steel, feature a non-twist forging, multi-stage heat treat process, stress relieving, shot-peening, and nitriding for superior strength and reliability in the most demanding applications. Each journal is micropolished to a 3 r.a. or better. A .125" radius is used to increase strength, so chamfered bearings must be used. These are the perfect choice for applications up to 1500HP. Approximate weight is 37 pounds.
    • OEM (Customer Supplied)

    Connecting Rods

    • Manley 156mm I-Beam
      Manley Pro Series connecting rods are forged from aircraft quality 4340 vacuum degassed material. Each rod is fully machined in the Manley Lakewood, NJ factory to the highest standards. Their signature "Turbo Tuff" design combines the appropriate weight and rugged strength for ultimate horsepower applications. Each rod is shot peened after machining and magnafluxed. Bores are round and without taper. Bend and twist is tightly controlled. Cap fasteners are 3/8" APR 2000 cap screws.
    • MAPerformance Ultimate Duty 156mm Billet Steel
      The research phase for these connecting rods consisted of a process called Finite Element Analysis which helped us to determine the weakest points of the factory connecting rod design. Using that information we developed a prototype using state-of-the-art CNC equipment that included the finest high nickel AQ4340 billet steel material, Ampco 18 bronze wristpin bushings, Manton alignment sleeves, and massive 7/16" ARP 2000 series fasteners. In the final development phase the prototype was heat treated, fully stress relieved, and shot peened to ensure that no stress risers or surface imperfections remain. The end result: A 652 gram connecting rod that we feel is the strongest and most reliable steel connecting rod available on the market for this application.
      Due to the design of these rods, they are ONLY compatible with a combination of 6 Bolt ACL rod bearings and an OEM Mitsu 88mm crank.

    Pistons

    Wiseco Sport Compact pistons are made from dedicated forgings produced in-house to give you a light weight piston with superior strength and optimal design. With Wiseco being the multivalve piston technology leader, the line features specially designed valve pockets, complex dome and crown shapes, the steel nitride/napier xx rings and optimized skirt profiles. The pistons come standard with their ArmorGlide coating material for reduced friction and noise, freeing up horsepower.

    • Wiseco 1400HD / 86.5mm Bore (Standard)
    • Wiseco 1400HD / 87.0mm Bore (.020" Over)

    Disclaimer

    Based on the usage of the early 4g63 rod bearings the MAP connecting rods will ONLY work when utilized with an OEM Mitsubishi crankshaft.

     

    Customer Reviews

    Based on 1 review
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    Amazing quality at a great price!

    Bought this for my Evo VIII. Everything was packaged nicely, the rods came balanced and everything was top notch quality. No fitment issues whatsoever. Currently on 900 miles and will start turning up the boost soon. You can't beat the price and quality. MAP delivered for sure.

    MAP Limited Lifetime Warranty

    1.) All MAPerformance in-house fabricated parts include a Limited Lifetime Warranty for the Original Purchaser. This warranty only applies to the original purchaser and is non-transferrable. If the product fails it would need to be determined by MAPerformance that it is due to manufacturing defects in materials or workmanship.

    2.) This does not cover normal wear and tear. Improper use, modification, or abuse voids this warranty. MAPerformance will not be held responsible for additional costs due to the failure of a product (cost of sale, towing, labor, etc.). Warranty claims must be submitted to MAPerformance for review.

    3.) You must create a support ticket to acquire your return authorization number prior to returning the product.

    4.) Warranty claims will not be honored if the product was not purchased through an approved dealer.

    For warranty evaluation please create a support ticket via this form here.

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