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Crankshaft Rotating Assy Eagle Street/Strip 460 B/B

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Your Price: $1,769.97
Rotating Assembly, Street/Strip, Cast Steel Crankshaft, Forged Flat Pistons, 2 pc. Seal, Oldsmobile 468, Kit
Part Number: 42100030
Availability: In Stock.

Stroke: 4.250, Disp. @ .030: 461, Rod Length: 6.735, Pistons: -5cc Flat Top, Rings: File Fit, Comp. Ratio 77cc/84cc: 11.0/10.3

Actual Engine CID:460

Bore (in):4.155 in.

Bore (mm):105.537mm

Engine Stroke (in):4.250 in.


Pistons Included:Yes

Piston Rings Included:Yes

Piston and Ring Oversize (in):0.030 in.

Piston Material:Forged aluminum

Piston Style:Flat top, with two valve reliefs

Piston Head Volume (cc):+5.00cc

Wrist Pin Style:Floating

Piston Ring Facing Material:Plasmamoly

Crankshaft Included:Yes

Crankshaft Material:Cast steel

Rear Main Seal Style:2-piece

Engine Balance:External

Connecting Rods Included:Yes

Connecting Rod Material:Forged 4340 steel

Connecting Rod Beam Style:H-beam

Rod Bearings Included:Yes

Rod Bearing Undersize (in):Stock

Rod Bearing Undersize (mm):Stock

Main Bearings Included:Yes

Main Bearing Undersize (in):Stock

Main Bearing Undersize (mm):Stock


  • All kits are designed for internal balance
  • Flexplate/Flywheel and Balancer Not Included
  • Oldsmobile 455 standard bore size is 4.125", kits are available in .030" and .060" oversizes.
  • Eagle Specialty Products reserves the right to substitute pistons due to availability.
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