Engine Kits

Cast Pro Comp 4.250 Stroker BB Chevy Crank
Scat Crankshafts

Cast Pro Comp 4.250 Stroker BB Chevy Crank



Part #: 945420
List Price: $651.98
Our Price: $325.99
You Save: $325.99

Availability: In Stock



Cast Pro Comp 4.250 Stroker BB Chevy Crank 2-PC Rear seal, External balance.- 6.135 Rods 4.250 stroke external balance, 67 LBS,  Cast Pro Comp Crankshafts By Scat is a perfect way to increase cubic inches on a mild to moderate street and race engines. Pro Comp Crankshafts By Scat are made from the same SCAT's exclusive space-age 9000 materia as Scat's standard weight cranks, but with profiled counterweights for less weight ...Perfect for engines wanting quicker rpm's Aero-wing counterweights increase horsepower by reducing windage


  • Aero-wing counterweights
  • Straight shot oil holes,
  • Lightening holes in all rod throws (except 3.480 stroke)
  • Precision ground and micropolished,
  • Designed after our custom billets and made from SCAT's exclusive space-age 9000 materia
Brand SCAT Engine Components
Crankshaft Material Cast steel
Crankshaft Snout Style Standard
Cross-Drilled Mains Yes
Engine Balance External
Engine Stroke (in) 4.250 in.
Lightened Yes
Main Bearings Included No
Part Type Crankshafts
Product Line Scat Cast Crankshafts
Quantity Sold individually.
Rear Main Seal Style 2-piece
Requires Narrow Bearings No
Rod Bearings Included No
Rod Journal Diameter (in) 2.200 in.