Skip to product information
1 of 1

Speedmaster®

SKU:PCE276.1061.01

Chevy LS 4340 Forged Crankshaft ST-4.100 RJ-2.1 MRL-6.098 RMS-1Pc (10/10)

Chevy LS 4340 Forged Crankshaft ST-4.100 RJ-2.1 MRL-6.098 RMS-1Pc (10/10)

Regular price $750.10 USD
Regular price $1,000.00 USD Sale price $750.10 USD
Sale Sold out

Out of stock

Quantity
  • Item Condition: Brand New
  • Ships within 3 days
  • 12-Month Limited Worldwide Warranty
View full details

Information

Specifications

Brand:Speedmaster
Part Number:PCE276.1061.01
Part Type:Crankshaft
Product Line:4340 Forged Steel
Rear Main Seal Style:1-piece
Engine Stroke (in):4.100 in.
Crankshaft Material:Forged 4340 Steel
Engine Balance:Internal
Lightened:No
Requires Narrow Bearings:Yes (10/10)
Rod Bearings Included:No
Main Bearings Included:No
Rod Journal Diameter (in):2.100 in.
Main Journal Diameter (in):LS Standard
Minimun Rod Length (in):6.098 in.
Balancer Bolt Thread Size:Standard
Crankshaft Snout Style:Standard
Quantity:Sold individually.
Notes:Check the bearing to crank radius clearance.
Rod bearings may need to be chamfered or alternatively use narrow rod bearings.
USA Machined to 10/10.
Tool:Stroker Combinations

Speedmaster forged standard weight crankshafts are designed for street or race engines with substantially increased horsepower. Speedmaster crankshafts are precision-ground, heat-treated, shot-peened, inspected, and micro-polished for superior tolerance control. Speedmaster crankshafts are also nitride-hardened for superior wear resistance, have straight-shot and chamfered oil holes, and feature lightening holes in all rod throws. These crankshafts also have a large radius on all journals for improved strength and wear resistance.