BRINGING MORE VALUE TO YOU AND YOUR CUSTOMERS

Chrysler Penstar
JASPER upgrades Chrysler 3.6L Pentastar engines with improved parts such as nitrided valves, copper-infiltrated valve seats, and JASPER designed pistons with robust rings for increased durability.
Chrysler Penstar
JASPER 100% replaces the early-style cylinder head valve seats with copper-infiltrated seats to improve heat dissipation and reduce wear.
Chrysler Penstar
JASPER provides 100% installation of a NEW engine oil cooler and includes: oil temperature sensor, oil pressure sensor, knock sensor and adapter harness.
Chrysler Penstar
JASPER Engines undergo Live-Run Testing using state-of-the-art Data Acquisition to check compression, vacuum and oil pressure with other assessments to ensure reliability.
• 100% replacement of early-style cylinder head valve seats with copper-infiltrated seats and NEW nitrided valves for improved heat dissipation and reduced wear, preventing engine misfire (dropped valve seats and valve guide wear). Valve guides are air-gauge tested to verify proper clearance between the valve and guide.

• 100% installation of NEW late-design rockers/cam followers, improving longevity of the bearing assembly and the rocker.

• Installation of JASPER-designed pins in the block, locking the cylinders together under heavy load. This prevents the cylinders from moving, which can lead to head gasket scuffing, a common cause of failure.
• 100% installation of high-strength, Class 12.9 rod bolts to prevent stretching, which can lead to rod bearing failure.

• JASPER® engineered pistons include a graphite coated skirt and 28% more major thrust bearing area to help prevent dry startup and piston scuffing.

• JASPER® engineered pistons include a smooth, fully-machined, anodized crown that provides a thermal barrier and reduces carbon buildup.

• JASPER’s Chrysler 3.6L piston design includes additional oil return holes (12 total) to increase oil drain back, to reduce oil consumption, and prevent the oil rings from sticking.

• JASPER installs a robust two-piece 2.0mm oil ring for improved oil control and uses a steel top ring which includes a PVD and DLC coating for longevity and less friction.

• An accumulator groove is machined into the piston, decreasing the pressure between the 1st and 2nd ring land, preventing the upper (compression) ring from unseating at higher RPMs.

• JASPER designed pistons have 20% more pin bearing surface area than the original design to improve stability and prevent piston slap.

• Thicker, D-shaped, PTFE (polytetrafluoroethylene) coated Multi-Layer Steel head gaskets are installed, with new head bolts, along with better block and head surface finishes (50-150 Rz), to prevent leaks and maintain the correct compression ratio.

• Block is CNC machined for 100% installation of steel-threaded inserts for head bolts, increasing strength over the original aluminum design, which pull out.

• 100% installation of NEW engine oil cooler, and for ease of installation, assembly includes: oil temperature sensor, oil pressure sensor, knock sensor, and adapter harness.

• 100% of the Chrysler 3.6L remanufactured oil pumps are tested on state-of-the-art, JASPER designed, stand-alone oil pump testing equipment. Oil pressure and flow are measured with solenoid on and off throughout a full RPM sweep of the remanufacture oil pump operating range.  

• Live-Run Testing, utilizing Data Acquisition with other assessments to ensure reliability of compression, vacuum, oil pressure, actuator testing, and blacklight leak testing.

3 Year / 100,000 Mile Nationwide
Transferable Warranty

Full warranty disclosure available at www.jasperengines.com or
upon request. Specifications subject to change without notice.
Download Chrysler Penstar PDF

Chrysler 3.6L Pentastar

Value-Added Quality Improvements from JASPER

Issue / Concern:

Rocker and Camshaft Failure

JASPER Solution:

  • 100% installation of NEW late-design rockers/cam followers, improving longevity of the bearing assembly in the rocker.

Engine Misfire (Dropped Valve Seats, and Valve Guide Wear)

  • 100% replacement of early-style cylinder head valve seats with copper infiltrated seats for improved heat dissipation and reduced wear.

  • 100% installation of NEW nitrided valves for improved heat resistance and reduced valve guide wear.

Rod Bearing Failure

  • 100% installation of high-strength, Class 12.9 rod bolts to eliminate stretching, which can lead to bearing failure.

Dry Start-Up and Piston Scuffing

  • JASPER-designed piston with graphite coating helps prevent dry start-up and piston scuffing.

  • JASPER-designed pistons include 28% more major thrust bearing area to prevent dry start-up and piston scuffing.

Oil Consumption

  • Stronger JASPER-engineered pistons have a smooth, fully-machined, anodized crown that provides a thermal barrier and reduces carbon buildup.

  • JASPER’s piston design includes additional oil return holes (12 total) for increased oil drain back, to reduce oil consumption and prevent the oil rings from sticking.

  • JASPER installs a robust, two-piece 2.0mm oil ring for improved oil control.

  • JASPER piston rings include a steel top ring that has a PVD and DLC coating for longevity and less friction.

  • Additional accumulator groove is machined into the piston to decrease the pressure between the first and second ring land, preventing the upper (compression) ring from unseating at higher RPMs.

  • 100% installation of synthetic, rubber-based PTFE (polytetrafluoroethylene) valve stem seals.

Piston Slap

  • 100% torque plate honing of engine block, utilizing a torque plate and specially-designed, ARP2000® bolts, provides cylinder wall geometry that matches the cylinder head as a complete running assembly, for improved ring sealing.
  • JASPER-designed pistons include 20% more pin bearing area for better stability.

Head Gasket Failure

  • Installation of JASPER-designed pins in the block, which lock the cylinders together under heavy load. This prevents the cylinders from moving, which can lead to head gasket scuffing, a common cause of failure.
  • Block is CNC machined for 100% installation of steel threaded inserts for head bolts, increasing strength over the original aluminum design that pull out.
  • Upgraded D-shaped head gaskets increase fire ring pressure for improved sealing under heavy use.
  • JASPER installs a thicker, PTFE (polytetrafluoroethylene) coated MLS (Multilayer steel) head gasket.
  • Block and heads are resurfaced to a 50–150 Rz finish.

Engine Oil Contamination

  • 100% installation of NEW engine oil cooler, and for ease of installation, assembly includes: oil temperature sensor, oil pressure sensor, knock sensor, and adapter harness.

Low Oil Pressure

  • 100% of the Chrysler 3.6L remanufactured oil pumps are tested on state-of-the-art, JASPER designed, stand-alone oil pump testing equipment. Oil pressure and flow are measured with solenoid on and off throughout a full RPM sweep of the remanufacture oil pump operating range.

VVT Failure

  • VVT’s are hydraulically tested using a state-of-the-art oil-controlled, test stand.

Reliability

  • 100% live-run tested to verify proper compression, vacuum, and oil pressure.
  • 100% tested intake and exhaust cam actuators to verify proper performance.
  • 100% black light leak tested to ensure the unit is leak-free.
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