Description

This Eagle 104004250 Pontiac Crankshaft is great alternative to and an upgrade from an O.E. crankshaft. .092″ fillet radiuses mean in increase in strength, but O.E. replacement bearings can still be used. Recommended for use in pump gas, naturally-aspirated as well as non-competition road cars.

For improved efficiency as well as reliability, this crankshaft has a journal finish of 6 R.A. or less. A target bob weight of +/- 2 percent reduces balancing time.

Eagle 104004250 Pontiac Crankshaft Specs:

• Fits 400 cubic inch Pontiac Engines
• Material: Cast Mild Steel
• Engine Balance: Internal
• Rear Main Seal Style: 2-piece
• Target Bobweight: 2280g
• Stroke: 4.250 in.
• Rod Journal: 2.200 in.
• Rod Journal Width: 2.000 in.
• Main Journals: 3.000 in.
• Minimum Rod Length: 6.700 in.
• alancer Bolt Thread Size: 7/16 in.-20
• Crankshaft Snout Style: Standard
• Crankshaft Snout Diameter: 1.374 in.
• Requires Narrow Bearings: No
• Rod Bearings Included: No
• Main Bearings Included: No
• Quantity: Sold Individually

Note: Crankshaft MUST be balanced to match your specific rods as well as pistons.

Eagle Specialty Products produces high strength connecting rods as well as crankshafts for racing engines. They also provide full rotating assembles including crank, rods, pistons, rings, and bearings for many popular engine combinations. All items are not for use in pollution-controlled vehicles.