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Vehicle Info NeededSCATPART NUMBER: 942-934020
9000 Pro Comp Lightweight Crankshaft Chrysler/Mopar 340, 410 Stroker
$55499
Ships on Sep 04, 2026
Lowest Price GuaranteeChrysler/Mopar
- 9000 Pro Comp Lightweight Crankshaft
- Chrysler/Mopar 340, 410 Stroker
- 4.000" Stroke for use with 6.123" Rod
- Internal Balance, May Require Mallory
- If the internal counterweights are too light, weight must be added to the crankshaft counterweights by filling them with Mallory or other similar tungsten alloy slugs.
Less Rotating Weight for More Horsepower!
These crankshafts use the same space-age material as Scat's 9000 Series Stock Replacements yet are modified to be lighter. Pro Comp Lightweight Crankshafts utilize lightening holes and aero-wing counterweights to reduce weight and windage. They're an ideal, affordable option for increasing the cubic inches and horsepower of mild to moderate street or race engines.
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Features- 9000 cast steel construction
- Straight shot oil holes
- Stress-relieved and shot-peened
- Precision ground, micropolished journals
- Lightening holes in all rod throws to reduce mass
- Aero-wing counterweights increase horsepower by decreasing windage
Scat has been manufacturing and distributing crankshafts, connecting rods, and engine components for more than fifty years. The tradition continues to this day with a 42,000 sq/ft facility in Redondo Beach, California. Quality is the first step in all Scat products... skilled craftsmen, superior materials, innovation, and dedication create the absolute best parts for you.
Part TypeCrankshaft
Product LineScat 9000 Series Cast Pro Comp Lightweight Crankshafts
BrandSCAT
Package Height9.25
Package Width10.0
Package Length25.6
Weight56.0 PG
Part CategoryPerformance Parts
Crankshaft MaterialCast steel
Rod Journal Diameter2.125 in (54 mm)
Rear Main Seal Style2-piece
Requires Narrow BearingsNo
LightenedNo
QuantitySold individually
Crankshaft Snout StyleStandard
Main Bearings IncludedNo
Engine BalanceInternal
Rod Bearings IncludedNo
Engine Stroke4 in (101.6 mm)
Vendor Part Number9-340-4000-6123
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
