pentastar engines

Chrysler Pentastar Engines - Specifications

We are not responsible for any errors or omissions; proceed at your own risk.

 HPLb-ftMPG
Challenger30526818/26
300, Charger292 @ 6,400260 @ 4,80019/31
Charger Pursuit291 @ 6,400260 @ 4,40019/26
“RT” minivans, Avenger, old 200283 @ 6,400260 @ 4,80017/25
2014 200283 @ 6,400260 @ 4,800 
2015-17 200295 @ 6,35026219/29
Grand Cherokee 5-speed290 @ 6,400260 @ 4,80016/24
Grand Cherokee 8-speed  19/26
Durango (2014)290 @ 6,400260 @ 4,800 
Ram 1500305 @ 6,400269 @ 4,175to 18/25
Cherokee AWD (3.2)271 @ 6,500239 @ 4,40022/29
Pacifica287262/28

Specifications for the Mopar Pentastar engines used in Chrysler, Dodge, Jeep, and Ram cars and trucks (there may be minor differences for some models):

Spec3.6 liter V6
MaterialLiquid cooled 60° V6 with deep-skirt aluminum block and heads; metric standard
ValvesChain driven DOHC with 24 valves. Roller finger followers and hydraulic lash adjusters.
Dual independent cam-torque actuated phasers.
Displacement, bore x stroke220 cid, 3.78 x 3.27 (96 x 83 mm)
198 cid, 3.58 x 3.27 (91 x 83 mm)
Fuel injectionReturnless, sequential.
Compression10.2:1 3.6; 10.7:1 3.2
Fluids6 quarts 5W20 oil; 14 quarts antifreeze; regular gas
(3.2: 9.7 quarts antifreeze)
Redline6,400 rpm (3.2: 6,500)
Emission controlsDual three-way catalytic converters
Firing order1-2-3-4-5-6; lead cylinder is #1 in the right bank
Cylinder bore diameterGrade 1, 95.995 mm ± 0.005 mm (3.7793 ± 0.0002 in);
Grade 2, 96.005 mm ± 0.005 mm (3.7797 inches 0.0002)
BoreMax out-of-round: 0.009 mm (0.00035 inches). Cylindricity: 0.014 mm
Crank bore taperMax, measured over length of bulkhead, 0.006 mm
PistonsCast aluminum alloy; weight, 354-364 grams
Piston pin offset0.8 mm
Piston pinsFull floating pins, 21.9985 ± 0.0015 mm diameter
Clearance in piston, 0.002 - 0.011 mm; in rod, 0.011 - 0.024 mm
Piston rings#1 and #2 (top and center) are compression, 0.25-0.40 and 0.30 - 0.45 gaps respectively. #3 is oil control (steel rings), 0.15 - 0.66 gap
Intake valve timingOpens at 2° ATDC, closes at 82° (ABDC) or 262° (ATDC); 260° duration, 128° centerline (crank degrees, using a 0.1524 mm valve lift threshold)
Exhaust valve timingOpens 59° (BBDC) or 239° (BTDC), closes 12° ATDC, duration 251°, overlap 10° (crank degrees, using a 0.1524 mm valve lift threshold)
Oil pressure Warm: 600-1,200 rpm: 34.7 kPa min; 1,201-3,500 206.8 min; 3,501 - 6,400, 427.0 min. Cold: 958 (139 psi)

Running on regular gas, the Pentastar engine meets California LEV II+ evaporative emission requirements, Tier 2, meets Federal Bin 4+ emission requirements, and Clean Fuel Fleet Certification (CCF-LEV) in all other states.

Main Pentastar Engines overview and tech page • Home


HomeTop of page menu

Pentastars.com is not part of or associated with Chrysler Group. See our terms of service and privacy policy. © 2011-2015 Allpar, LLC. All rights reserved.