- Engines & Components
- Engine - Assembled / Ready-to-Run
- ATK HP Crate Engines Jeep L6 4.7L Stroker / 205HP / 280TQ
In 2007, ATK launched a High Performance Division with one of the finest engine shops in the country. By reverse engineering all of their engines, they are able to eliminate any OEM deficiencies. This makes an ATK built crate engine have a superior design over the original engine by incorporating better components when needed. These quality built engines are offered in three different stages for ease of finishing an engine swap. ATK HP engines feature a 24 month/unlimited mile warranty.
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Engine Specifications
This engine will reuse stock parts from your tired old 4.0L while providing more power and reliabilty.
- Horsepower: 205 hp
- Torque: 280 lb/ft
Block Information:
- OE 4.0L block
- #535 or 665 for 1987-1990
- #569,341, or 449 for 1991-1998
- #327AB or 328AB for 1999-2006
- #449A for 2000-2001 Jeep Cherokee
- Bore/Stroke: 3.915 or 3.935" x 3.895"
- Displacement: 4.6L / 4.7L
Rotating Assembly:
- Crankshaft: Scat nodular iron with .850" pilot hole
- Rods: OE
- Compression Ratio: 9.3:1
- Pistons: Hypereutectic
- Rings: Moly
Camshaft Specs:
- Camshaft: Hydraulic flat tappet
- Cam Duration @ .050": Intake 206 / Exhaust 212
- Cam Lift: Intake .462" / Exhaust .478"
- Lobe Separation Angle: 113lsa
- Timing Chain: Single roller
Cylinder Head Information:
- Cylinder Heads: OE cast iron
- #686 for 1987-1990
- #630 for 1991-1998
- #0331 for 1999-2006, 2000-2001 Jeep Cherokee
- Rocker Arms: OE stamped steel
Oil Pump Information:
- Oil Pump: Melling standard volume
Base Engine Includes:
- Short Block
- Camshaft
- Timing Set
- Cylinder Head
- Oil Pump
1987-1990 Jeeps
1991-1998 Jeeps
1999-2006 Jeeps
Want that legendary Jeep reliability but with a little more power? ATK has you covered with their 4.7L Stroker engines. They take a tired, old 4.0L and increase its displacement to make a total of 205hp and 280 ft/lb torque.
What Are The Top ATK HP Crate Engines Jeep L6 4.7L Stroker / 205HP / 280TQ?
The Wrangler is one of the most popular Jeeps out there. It's comfortable on the road, but it shines when you take it off-road. The Jeep 4.7 Stroker kit from ATK packs a punch when compared to a stock 4.0L.
How Much Do ATK HP Crate Engines Jeep L6 4.7L Stroker / 205HP / 280TQ Cost?
A remanufactured Jeep 4.0 Stroker crate engine will cost $4,000-$4,500. At this price, you get reverse-engineered powerplant with all new components that will last for years to come.
What Are The Main Benefits of ATK HP Crate Engines Jeep L6 4.7L Stroker / 205HP / 280TQ?
The increased power and torque are easily the best benefits of ATK's Jeep 4.7L Stroker kit. The extra displacement makes a noticeable difference when it comes to performance.
How To Use ATK HP Crate Engines Jeep L6 4.7L Stroker / 205HP / 280TQ
As it comes fully assembled, ATK's engines are ready to drop into your Jeep. A break-in period is required. JEGS suggests that you use their special break-in oil for the first 500 miles.