Jeep 4.0 Stroker Kits

Jeep 4.0L Stroker Kits

  • Comes with:
    KB Hypereutectic Dish Pistons -27.5cc #KB421
    Cast Piston Rings #E667
    Scat Enterprises 9000 Series Cast Steel Crankshaft 3.895” Stroke #9-4.2L-3895
    Connecting Rods 4.0L 242ci 6.125” Reconditioned
    King Connecting Rod & Main Bearing Set

    Compression ratios will vary depending on block deck height and gasket thickness. Please contact our customer service department for compression ratio options

    Core Charge Note: You have three connecting rod options with this kit (options are chosen after clicking "Add to Cart & Configure"):

    • Option #1 - Use the new connecting rods that come with the base kit. This option requires a refundable core charge. You will receive a return shipping label to ship your old connecting rods to us at no cost to you. Once your rod cores are received, we will refund the initial core charge.
    • Option #2 - Remove the connecting rods from this kit / use your old connecting rods. This option removes the need for a core charge and lowers the kit price.
    • Option #3 - Upgrade to SCAT 4340 forged connecting rods. This option removes the need for a core charge and increases the cost of the kit.

    Available kit upgrades / addons (selections available after clicking add to cart):

    • Upgrade to Hastings Moly Piston Rings +$30.00
    • Custom Autotec Forged Piston Option +$160 (custom pistons can be designed and built to any desired compression ratio and/or bore size)
    • Upgrade to Clevite Bearings +$60.00
    • Upgrade to Scat 4340 Forged Connecting Rods +$180.00
    • Balance Rotating Assembly +$130.00
    • 6- Fuel Injectors (24LBS) +$250.00

    ...Learn More

  • Comes with :
    Icon 4032 Forged Dish Pistons -27.5cc #IC668
    Cast Piston Rings #E667
    Scat Enterprises 9000 Series Performance Cast Steel Crankshaft 3.895” Stroke #9-4.2L-3895
    Connecting Rods 4.0L 242ci 6.125” Reconditioned
    King Connecting Rod & Main Bearing

    Set Compression ratios will vary depending on block deck height and gasket thickness. Please contact our customer service department for compression ratio options

    Core Charge Note: You have three connecting rod options with this kit (options are chosen after clicking "Add to Cart & Configure"):

    • Option #1 - Use the new connecting rods that come with the base kit. This option requires a refundable core charge. You will receive a return shipping label to ship your old connecting rods to us at no cost to you. Once your rod cores are received, we will refund the initial core charge.
    • Option #2 - Remove the connecting rods from this kit / use your old connecting rods. This option removes the need for a core charge and lowers the kit price.
    • Option #3 - Upgrade to SCAT 4340 forged connecting rods. This option removes the need for a core charge and increases the cost of the kit.

    Available kit upgrades / addons (selections available after clicking add to cart):

    • Upgrade to Hastings Moly Piston Rings +$30.00
    • Custom Autotec Forged Piston Option +$160 (custom pistons can be designed and built to any desired compression ratio and/or bore size)
    • Upgrade to Clevite Bearings +$60.00
    • Upgrade to Scat 4340 Forged Connecting Rods +$180.00
    • Balance Rotating Assembly +$130.00
    • 6- Fuel Injectors (24LBS) +$250.00

    ...Learn More

  • Comes with :
    Icon 4032 Forged Dish Pistons -21cc #IC944
    Cast Piston Rings #E667
    Scat Enterprises 9000 Series Cast Steel Crankshaft 3.895” Stroke #9-4.2L-3895
    Connecting Rods 4.0L 242ci 6.125” Reconditioned
    King Connecting Rod & Main Bearing Set

    Compression ratios will vary depending on block deck height and gasket thickness. Please contact our customer service department for compression ratio options. There is a $90.00 Refundable Core charge for the connecting rods, if we do not receive the rods back within 30 days you will be charged $90. There will be a return label to ship the rods back.

    Core Charge Note: You have three connecting rod options with this kit (options are chosen after clicking "Add to Cart & Configure"):

    • Option #1 - Use the new connecting rods that come with the base kit. This option requires a refundable core charge. You will receive a return shipping label to ship your old connecting rods to us at no cost to you. Once your rod cores are received, we will refund the initial core charge.
    • Option #2 - Remove the connecting rods from this kit / use your old connecting rods. This option removes the need for a core charge and lowers the kit price.
    • Option #3 - Upgrade to SCAT 4340 forged connecting rods. This option removes the need for a core charge and increases the cost of the kit.

    Available kit upgrades / addons (selections available after clicking add to cart):

    • Upgrade to Hastings Moly Piston Rings +$30.00
    • Custom Autotec Forged Piston Option +$160 (custom pistons can be designed and built to any desired compression ratio and/or bore size)
    • Upgrade to Clevite Bearings +$60.00
    • Upgrade to Scat 4340 Forged Connecting Rods +$180.00
    • Balance Rotating Assembly +$130.00
    • 6- Fuel Injectors (24LB) +$250.00

    ...Learn More

  • Comes with :
    Icon 4032 Forged Dish Pistons -10.8cc #IC945
    Cast Piston Rings #E667
    Scat Enterprises 9000 Series Cast Steel Crankshaft 3.895” Stroke #9-4.2L-3895
    Connecting Rods 4.0L 242ci 6.125” Reconditioned
    King Connecting Rod & Main Bearing Set

    Compression ratios will vary depending on block deck height and gasket thickness. Please contact our customer service department for compression ratio options

    Core Charge Note: You have three connecting rod options with this kit (options are chosen after clicking "Add to Cart & Configure"):

    • Option #1 - Use the new connecting rods that come with the base kit. This option requires a refundable core charge. You will receive a return shipping label to ship your old connecting rods to us at no cost to you. Once your rod cores are received, we will refund the initial core charge.
    • Option #2 - Remove the connecting rods from this kit / use your old connecting rods. This option removes the need for a core charge and lowers the kit price.
    • Option #3 - Upgrade to SCAT 4340 forged connecting rods. This option removes the need for a core charge and increases the cost of the kit.

    Available kit upgrades / addons (selections available after clicking add to cart):

    • Upgrade to Hastings Moly Piston Rings +$30.00
    • Custom Autotec Forged Piston Option +$160 (custom pistons can be designed and built to any desired compression ratio and/or bore size)
    • Upgrade to Clevite Bearings +$60.00
    • Upgrade to Scat 4340 Forged Connecting Rods +$180.00
    • Balance Rotating Assembly +$130.00
    • 6- Fuel Injectors (24LBS) +$250.00

    ...Learn More

  • Comes with :
    Sealed Power Hypereutectic Coated Dish Pistons -15.1cc #H825CP
    Cast Piston Rings #E667
    Scat Enterprises 9000 Series Performance Cast Steel Crankshaft 3.895" Stroke #9-4.2L-3895
    Connecting Rods 4.2L 258ci 5.875” New
    King Connecting Rod & Main Bearing Set

    Compression ratios will vary depending on block deck height and gasket thickness. Please contact our customer service department for compression ratio options

    Available kit upgrades / addons (selections available after clicking add to cart):

    • Upgrade to Hastings Moly Piston Rings +$30.00
    • Custom Autotec Forged Piston Option +$160 (custom pistons can be designed and built to any desired compression ratio and/or bore size)
    • Upgrade to Clevite Bearings +$60.00
    • Upgrade to ARP Connecting Rod Bolts +$90.00
    • Balance Rotating Assembly +$130.00
    • 6- Fuel Injectors (24LBS) +$250.00

    ...Learn More

    $901.23

Jeep 4.0L Camshaft Kits & Cylinder Heads

  • Jeep 4.0L Stage 1 Performance Camshaft Kit

    Jeep 4.0L Stage 1 Performance Camshaft Kit

    Specs:
    Duration 263in/267ex.
    Duration @ .050 209in/213ex.
    Valve lift .443in/.443ex. LSA 114.
    Kit Includes:
    Camshaft, Lifters, Timing Set and Pushrods.
    Camshaft design works with stock valve springs.

    Available kit upgrades / addons (selections available after clicking add to cart):

    • Upgrade to Cloyes Heavy Duty Roller Chain +$50
    • Add Fuel Injectors (24lbs) +$299.70

    ...Learn More

    $315.00
  • Jeep 4.0L Stage 2 Performance Camshaft Kit

    Jeep 4.0L Stage 2 Performance Camshaft Kit

    Specs:
    Duration 269in/273ex.
    Duration @ .050 215in/219ex.
    Valve lift .484in/.480ex. LSA 114.
    Kit Will Include:
    Camshaft, Lifters, Timing Set, Pushrods, Valve Springs, Retainers locks.

    Available kit upgrades / addons (selections available after clicking add to cart):

    • Upgrade to Cloyes Heavy Duty Roller Chain +$50
    • Add Fuel Injectors (24lbs) +$299.70

    ...Learn More

    $450.00
  • Edelbrock Jeep 4.0L Performer Cylinder Head #50169

    Edelbrock Jeep 4.0L Performer Cylinder Head #50169

    Designed as a bolt-on performance upgrade for 1987-2006 Jeeps w/ 4.0L inline six cylinder engine.
    Designed w/ 1991-2006 4.0L intake port locations and must be used with 1991-2006 intake manifold.
    Designed w/ 1991-98 4.0L exhaust port locations and must be used with 1991-98 factory header or aftermarket exhaust header.
    Will also fit 1976-90 AMC 4.2L engines with no modification to the water jacket and the appropriate intake manifold and header combination.
    Features all-new better flowing intake/exhaust ports along with a modern combustion chamber design and backcut and swirl polished valves.
    Pending 50-state emission legal for 4.0L engines when used with factory Fuel Injection components

    ...Learn More

    $1,590.00
  • tb_bbk1724_jeep_40l_throttle_body_bbk_1724_62mm_high_flow_power_plus_series.jpeg

    Jeep 4.0L Throttle Body BBK 1724 62mm - High Flow Power Plus Series

    BBK is your Number One Aftermarket Performance Brand in the USA - American Designed and Built
    High Flow Power Plus Series 62mm Throttle Body Increases Airflow to Improve Horsepower and Throttle Response Over Stock
    Recommended For Vehicles Where Modifications Have Been Made or are Planned Especially Cold Air Intakes and Exhaust
    All New CNC Machined Casting Assembled with Components that Exceed OEM Standards, They Will Offer Years of Trouble Free Performance
    Simple Direct Bolt on Replacement for Factory Unit with Simple Hand Tools in Less Than Half an Hour

    ...Learn More

    $268.00