5150 AutoSport Bully Stroker Kit, BMW B58, Gen 1

Bigger displacement, more torque and more power.

Our 5150 Autosport 3.2L Stroker kit is specifically designed for BMW Gen1 B58 Engines. 

Utilizing CP-Carrillo Pro-Xtreme Forged Pistons and Pro-Xtreme Rods, as well as the 5150 4340 Billet Steel Crankshaft, our stroker kits have stood up to the tests and trials of high horsepower applications time and time again. 

Benefits of Stroking an Engine

– With higher displacement, your engine will produce greater power and torque, thanks to increased cylinder volume and improved air-fuel mixture combustion

– The longer stroke in the crankshaft increases the leverage on the connecting rods, resulting in increased torque output at lower RPMs
– Improved throttle response
– Increased horsepower

Kit Contents 

– 5150 Autosport 4340 Billet Steel Crankshaft, 100mm Stroke
          – Professionally turned, polished, and coated with anti-wear coating
– Fully balanced
– CP-Carrillo Pro-Xtreme Connecting Rods, 148mm Length
– CP-Carrillo Pro-Xtreme Forged Pistons
– CP-Carrillo Piston Wrist Pins
– CP-Carrillo Piston Rings
– CP-Carrillo Piston Wire Locks

Our stroker kit offers varying displacements, ranging from 3300 cc to 3460 cc, depending on the selected bore size:

82mm bore size results in a displacement of 3303 cc
82.5mm bore size yields a displacement of 3342 cc
83mm bore size provides a displacement of 3381 cc

Please note that the 82.5mm and 83mm Options require sleeving the engine block.