CRANKSHAFTS - FLANGE CRANKSHAFTS

The original flange crank was developed in 1972 by SCAT and has been steadily improved over the last 30 years. SCAT flange cranks are the choice of the fastest drag racers around the world who want to be the very best.
 

OUR CRANKS ARE OFTEN COPIED, BUT NEVER DUPLICATED
 
   
FEATURES:  
  • All cranks feature fully-machined knife-edge counterweights to reduce horsepower robbing windage and 1.5 pounds of rotating mass
  • SCAT’s new straight "8" bolt pattern and 8mm locating dowel pin features SCAT/ARP exclusive 240,000 pound tensile strength
  • 8 ARP 7/16" bolts are capable of handling 40% more horsepower and torque than the old method of 6 bolts
 

AND ALL OF THESE IMPROVEMENTS AT NO EXTRA CHARGES
 
All of SCAT’s flange crankshafts are 100% American machined at SCAT and are ground to exacting tolerances, magnafluxed, dynamically balanced, micropolished and most important, READY TO INSTALL.

SCAT flange crankshafts are made from only the finest virgin 4340 Chromoly Steel Billets. Each billet is forged into the shape of a VW crankshaft by a series of 12 operations using multi-cavity dies for maximum grain flow, combined with a 3-step heat-treating process, result in the strongest forging available anywhere. All SCAT flange cranks are nitrided which is a special surface hardening treatment for added strength and extended bearing life.

 

THIS PROCESS IS A SCAT EXCLUSIVE
 
SCAT’s exclusive Straight-Shot Oil System to the connecting rods is the only lubricating system that will allow your performance engineto sustain RPMs above 6,500 without burning the rod bearings.
   
For your convenience we stock the most popular models as follows:
   

  • 84-4114F 84mm, Chevy Rod Journal, Type 4 Center Main.

  • 84-4444F 84mm,Chevy Rod Journal, Type 4 All Mains.

  • 86-4114F 86mm,Chevy Rod Journal, Type 4 Center Main.

  • 86-4444F 86mm,Chevy Rod Journal, Type 4 All Mains.

  • 88-4444F 88mm, Chevy Rod Journal, Type 4 All Mains.

  • 90-4444F 90mm, Chevy Rod Journal, Type 4 All Mains.

 
 

Other combinations are available. Please call our knowledgeable sales staff
 and let them help you with all of your flange crankshaft needs.
 
DON’T FORGET ABOUT SCAT’S HIGH-QUALITY LINE OF CRANKSHAFT ACCESSORIES PRO-DRAG 12-VOLT4340 BILLET FLANGE FLYWHEELS
  • Flywheel locates on 1, 8mm chrome vanadium crankshaft dowel pins and is positively locked into place with 8 ARP 2000 big head 7/16-20 12-POINT Bolts
  • Machined to exact tolerances in our facility on the latest CNC machining center
  • Rear of engine case must be machined to 4.003" (101.75mm) to accept rear oil seal
  • Replaceable ring gear
   
60063 =    12-Volt 6 bolts 200mm Flywheel 
60067 =    12-Volt 6 bolts 200mm Flywheel for J&G Floater Clutch Assembly
60068 =    J&G Floater Clutch Assembly
60083 =    12-Volt 8 Bolts 200mm Flywheel
60087 =   12-Volt 8 Bolts 200mm Flywheel for J&G Floater Clutch Assembly
10074 =   ARP 2000 Big Head 7/16-20 ARP 12-POINT Flywheel Bolts, Set of 6 pieces (Torque 80-85 Foot Pounds)
10074 - 1 =   ARP 2000 Big Head 7/16-20 ARP 12-POINT Flywheel Bolts,Set of 8 pieces (Torque 80-85 Foot Pounds)
10079 =   Flywheel flange crank oil seal
     
SUPER FLANGE ‘SPLIT’ REAR MAIN BEARINGS  
  • For use with all SCAT VOLKSTROKER PRO-DRAG FLANGE CRANKSHAFTS
  • Steel backed special alloy bearings
  • For Type 1 or Type 4 Mains
  • Available in all bearing sizes
  
Type 1 Main Journal Standard Case Type 4 Main Journal Standard Case
10078STD = Standard Crank 10213STD = Standard Crank
1007825 = .010"/.25mm Crank 1021325 = .010"/.25mm Crank
1007850 = .020"/.50mm Crank 1021350 = .020"/.50mm Crank
1007875 = .030"/.75mm Crank  
   
.020"/.50mm Oversize Case. 020"/.50mm Oversize Case
1015850STD = Standard Crank 1021450STD = Standard Crank
101585025 = .010"/.25mm Crank 102145025 = .010"/.25mm Crank
   
SPECIAL TYPE 4 CENTER MAIN BEARINGS

 

 
  • For crankshafts with TYPE 4 CENTER MAIN JOURNAL and TYPE 1 CASE BORE
  • For use in SCAT KILLER or VW Type 1 - 3 cases
  
10204STD = Std Case x Std Crank  
1020425 = Std Case x .010 / .25mm Crank