VAC Motorsports BMW S58 3.2L Stroker Kit | Up to 2000HP
The BMW S58 engine is an incredible platform — but when you want to push it to the next level, more displacement is the answer. The VAC Motorsports S58 3.2L Stroker Kit transforms the factory 3.0L twin-turbo inline-six into a torque-rich powerhouse capable of supporting over 2000HP when built and tuned correctly.
Precision-engineered and machined in-house at VAC Motorsports, this kit features our exclusive 96mm 4340 billet steel crankshaft, purpose-built for maximum strength, balance, and longevity. Whether your build is a high-boost street car or a record-setting competition engine, this is the foundation trusted by professional race teams worldwide.
Kit Contents
VAC 96mm 4340 Billet Steel Crankshaft
• Anti-wear treated and precision-polished journals
• Fully counterweighted for exceptional high-RPM stability
• Extended stroke for increased displacement and torque
Connecting Rod Options
• SP Rods (Rated to 1,000HP / 8,500 RPM)
• CP-Carrillo Pro-Xtreme Rods (Rated to 2,000HP / 9,500 RPM)
• Arrow Rods
CP-Carrillo Forged Pistons
• Fully skirt-coated for reduced friction and improved cylinder life
• Includes premium ring set and wire locks
• Standard Heavy-Duty wrist pins rated for 850 HP
Optional Extreme-Duty pins for 850 HP+ applications
Displacement Options
• 84 mm bore: ≈ 3325 cc
• 85 mm bore: ≈ 3404 cc (requires professional sleeving)
All S58 blocks must be properly clearanced and assembled by a professional engine builder.
Performance Advantages
• Increased stroke for greater torque and faster spool under boost
• Enhanced cylinder volume for higher overall power potential
• Sharper throttle response and smoother power delivery
• Ideal for both high-boost and naturally aspirated builds