1991-1997 Jeep YJ TJ ATK Performance 4.7L Baja Stroker Base Engine - 275+HP
1991-1997 Jeep YJ TJ ATK Performance 4.7L Baja Stroker Base Engine - 275+HP

1991-1997 Jeep YJ TJ ATK Performance 4.7L Baja Stroker Base Engine - 275+HP

$4,799.99Promotion Price:
MSRP:$5,962.98
Total Savings:$1,162.99(20%)
Available
Part Number:M22855

Fitment:

1991 1992 1993 1994 1995 1996 1997
This 1991-1997 Jeep YJ TJ ATK Performance 4.7L Baja Stroker Base 275+HP Engine won the Baja 1000 for Team ATK so expect big power, and reliability.

Your engine may not necessarily come with all components listed, but they are listed as our recommendations of parts to run for optimal performance.

Features:
  • Horsepower: 275+
  • Torque: 320 lb/ft
  • Block: Seasoned OE Block Cast #569, 341 or 449
  • Bore/Stroke: 3.935" x 3.895
  • Year Range: 1991-1998
  • Displacement: 4.7L
  • Crankshaft: Scat Nodular Iron 3.895" Stroke / 2.125 Snout .850 Pilot Hole
  • Connecting Rods: OE Steel 6.125" ARP 8740 Bolts
  • Pistons: Forged Dish
  • Piston Rings: Moly Rings
  • Compression Ratio: 9.5:1 Compression
  • Camshaft: Hydraulic Flat Tappet
  • Camshaft Specifications: 213/220 @050 .484in/.507ex 112LSA
  • Camshaft Bearings: Installed & Clocked to OEM Position
  • Cylinder Heads: 1991-1998 Cast #630 Professionally Ported
  • Freeze Plugs: Brass Installed & Sealed
  • Rocker Arms: Harland Sharp Aluminum Full Roller 1.6 Ratio
  • Oil Galley Plugs: Installed & Sealed
  • Oil Pan: OE 6qt.
  • Weight:376 
Applications:
  • 1991-1997 All Models Vin "S"
  • 1998 Cherokee
  • 1998 Wrangler
Engine Info:
  • Oil : 10W30 with Zinc additive
  • Oil Filter: Wix or K&N Recommended Per Your Application
  • Fuel Delivery : OE EFI System With Upgraded Throttle Body, Injectors & Tune
  • Intake Manifold : Stock Manifold
  • Fuel Injectors : 24lb @ 43.5psi Injectors Required
  • Spark Plugs : Champion #RC9YC4
  • Spark Plug Gap : .035?
  • Harmonic Balancer/Damper : Stock Factory Balancer Internally Balanced
  • Flex Plate / Flywheel : Stock 
  • Tuning : Chassis Dyno Tune Required
  • Timing : Set To Factory Specifications
  • Throttle Body : 62mm Throttle Body Required
  • Water Pump : Stock
  • Firing Order : 1 5 3 6 2 4
  • Air Intake : Cold Air Intake Required
  • Exhaust : Aftermarket Borla or Banks Header W/High Flow Exhaust Required
  • Fuel Pump : Stock 
  • Fuel : 91+ Octane
  • Ignition : DUI Firepower Kit Required
  • Automatic Transmission Stall Converter : Stock
Note: Not for 1998 Grand Cherokee Vin "S"

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This item does not qualify for free shipping.

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