Ram PowerTech 3.7 Specs: 3.661 x 3.575 in, 210-215 hp

See other engines in this family

Ram PowerTech 3.7 specs: 226 ci (3.7L) 6-cylinder, 3.661 x 3.575 in (93 x 90.8 mm) bore and stroke. Rated 210-215 hp, 2002–2011. Used in the Ram 1500. SOHC.

The Ram PowerTech 3.7 is close to square: 3.6614" bore against 3.5748" stroke, within 2.4%, which splits the difference between a high-revving layout and a torque layout. The 3.5748" stroke puts mean piston speed at 4,000 ft/min around 6,700 RPM, which is where a production bottom end is generally considered at its limit. Each of the 6 cylinders displaces 37.7 ci (617 cc).

It is one of 8 engines in the PowerTech family, the smallest at 226 ci. 15 factory variants share these dimensions, rated from 210 to 215 hp across 2002–2011.

Dimensions

Displacement	226 ci / 3.7 L
Bore	3.6614"
Stroke	3.5748"
Cylinders	6
Configuration	V6
Bore/stroke ratio	1.024

Construction

Block material	cast iron
Head material	aluminum
Valvetrain	SOHC
Fuel type	gas
Advertised HP	210–215 hp
Years	2002–2011

What these numbers mean

Bore/stroke character	1.024 — square — bore and stroke are within 5%, a balanced compromise
Mean piston speed at 6,000 RPM	3,575 ft/min — in the range typical of performance street engines
Displacement per cylinder	37.7 ci

Run the numbers for this engine

Each link opens the calculator with this engine's specs already filled in.

• Displacement from bore and stroke (calculator)
• Static and dynamic compression ratio calculator
• Piston ring gap for this bore
• Piston speed at any RPM
• Horsepower to torque at any RPM
• What size carburetor (CFM calculator)

Variants sharing these dimensions (15)

These records share identical bore, stroke, displacement and compression. They differ by model year and factory power rating.

Year	Advertised HP	Code
2002	215 hp	PowerTech 3.7
2003	215 hp	PowerTech 3.7
2004	210 hp	PowerTech 3.7
2004	215 hp	PowerTech 3.7
2005	210 hp	PowerTech 3.7
2005	215 hp	PowerTech 3.7
2006	210 hp	PowerTech 3.7
2006	215 hp	PowerTech 3.7
2007	210 hp	PowerTech 3.7
2007	215 hp	PowerTech 3.7
2008	210 hp	PowerTech 3.7
2008	215 hp	PowerTech 3.7
2009	210 hp	PowerTech 3.7
2010	210 hp	PowerTech 3.7
2011	210 hp	PowerTech 3.7

Factory cars with this engine

• Ram 1500: 2002, 215 hp; 2003, 215 hp; 2004, 215 hp; 2005, 215 hp; 2006, 215 hp; 2007, 215 hp; 2008, 215 hp
• Dodge Dakota: 2004, 210 hp; 2005, 210 hp; 2006, 210 hp; 2007, 210 hp; 2008, 210 hp; 2009, 210 hp; 2010, 210 hp; 2011, 210 hp

Similar engines

• Ram 37 Powertech V6 — 226 ci
• Ram PowerTech (2009–2012) — 226 ci
• Ram 47 Powertech V8 — 287 ci
• Ram EVA (FlexFuel) — 287 ci
• Ram 37 Magnum — 226 ci
• Ram PowerTech 3.7 — 226 ci
• Jeep EKG — 226 ci
• Jeep PowerTech 3.7 — 226 ci

← All PowerTech engines