Upper echelon S38 performance!
Our VAC S38 4.1L Stroker Kit has been properly designed and tested to ensure performance, durability, and reliability in every form of racing. With years of proven performance in the field, there is not a better choice when it comes to these crucial components available anywhere. Each crank is machined from the highest quality billet steel alloy to our unique specifications. With years of experience and an optimized design, this stroker kit is a trusted setup that is rivaled by nothing else available at any price. We have proven this configuration works brilliantly and reliably, all while using BMW style bearings. Don't bother with weaker offset-ground or modified cranks, or those that have to use a domestic style bearing!
Proven to win in the even the most grueling scenarios of 24-Hour endurance races!
- Proven in Grueling Endurance Racing - Championship Winning
- Machined from the best-quality steel billet
- Exacting specification
- No need for non-BMW bearings
- Properly nitrided.
Understanding Your Stroker:
This crankshaft has a 97 mm stroke
-A bore size of 93.5 mm gives a displacement of 3996 cc
-A bore size of 94 mm gives a displacement of 4039 cc
-A bore size of 94.5 mm gives a displacement of 4082 cc
-A bore size of 95 mm gives a displacement of 4125 cc
-A bore size of 95.5 mm gives a displacement of 4169 cc
-A bore size of 96 mm gives a displacement of 4212 cc |
With maximum reliability and displacement, your S38 will scream! Our crank maintains a lightweight design and offers gains in torque and horsepower throughout the powerband.
VAC S54 Stroker Kit includes:
- VAC S38 Billet Crank with 97mm Stroke
- (6) CP Forged Pistons; with high quality rings, pins, & locks (any compression ratio/ .5mm bore increments)
(6) Forged connecting rods with ARP hardware.
VAC Tech Tip:
This crank can help give the S38 a wider powerband with more torque across the entire powerband, giving you the edge off the line and out of corners when you need it most! Always remember to check piston to valve clearance when assembling your engine.
Suitable for a street car or all out racing vehicle