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Eagle Rotating Assembly Kit for Chevrolet LS-Series 3.905in Bore Intended for Internal Balance

SKU: EAG129023905

Engine Rotating Kits

EAG Rotating Assy - 8 Cyl...

Eagle Rotating Assembly Kit for Chevrolet LS-Series 3.905in Bore Intended for Internal Balance

SKU: EAG129023905

Engine Rotating Kits

EAG Rotating Assy - 8 Cyl...

A$5,490.57
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Eagle Rotating Assembly Kit for Chevrolet LS-Series 3.905in Bore Intended for Internal Balance

Eagle Competition Rotating Assemblies are perfect for all forms of racing use including nitrous and forced-induction.

Additional Information

3.622" Forged 4340 Crank, 24 TOOTH RELUCTOR,6.125" H-BEAM Rods,7/16" ARP 8740 BOLTS,Forged 4032 MAHLE -4CC FLAT TOP 3.905" PISTONS,PLASMA-MOLY FILE-FIT RINGS,KING XP Rod/MAIN BEARINGS.

Application Summary

CHEVY LS1

Part Type

Engine Crankshaft Rotating Assembly

Product Overview

3.622" FORGED 4340 CRANK, 24 TOOTH RELUCTOR,6.125" H-BEAM RODS,7/16" ARP 8740 BOLTS,FORGED 4032 MAHLE -4CC FLAT TOP 3.905" PISTONS,PLASMA-MOLY FILE-FIT RINGS,KING XP ROD/MAIN BEARINGS.


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 20:03:59

Data: v4.2 - Upd: 2026-11-07 19:55:42

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Assembly Type:Competition Assembly
Bore:3.905
Description:Eagle Rotating Assembly Kit for Chevrolet LS-Series 3.905in Bore Intended for Internal Balance
Part Number:eag129023905
Piston Brand:Mahle
Piston Type:Flat Top Forged
Product Line:Competition
Title:Eagle Specialty Prod. Rotating Assembly

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Eagle, Eagle Specialty Products
StreetFX SKU eag129023905
SFX Item ID 4053125
Accounting SKU eag-129023905
Manufacturer SKU 129023905
Manufacturer UPC 793348009193
Alternative References ESP-129023905

LS1 ROTATING ASSEMBLY

Eagle competition rotating assemblies consist of name-brand quality components for a wide range of engines at an affordable price. Depending upon your selection, these kits may feature a crankshaft, pistons, piston rings, rod and main bearings, or connecting rods. Balanced assemblies are also available. Order the model designed for fitment on your year/make vehicle and engine application.

Product Attributes
BrandEagle Specialty Products
Manufacturer's Part Number129023905
Part TypeEngine Rotating Kits
Product LineEagle Competition Rotating Assemblies
UPC00793348009193
Actual Engine Displacement5.7L/346
Rear Main Seal Style1-piece
Bore (in.)3.905 in.
Bore (mm)99.187mm
Engine Stroke (in.)3.622 in.
BalancedNo
Piston MaterialForged aluminum
Piston StyleFlat top, with two valve reliefs
Harmonic Balancer IncludedNo
Flexplate IncludedNo
Flywheel IncludedNo
Pistons IncludedYes
Piston Head Volume (cc)+4.00cc
Wrist Pin StyleFloating
Piston Rings IncludedYes
Piston Ring Facing MaterialPlasmamoly
Piston and Ring Oversize (in.)0.007 in.
Crankshaft IncludedYes
Crankshaft MaterialForged 4340 steel
Engine BalanceInternal
Connecting Rods IncludedYes
Connecting Rod Length Center to Center (in.)6.125 in.
Connecting Rod MaterialForged 4340 steel
Connecting Rod Beam StyleH-beam
Rod Bearings IncludedYes
Rod Bearing Undersize (in.)Stock
Rod Bearing Undersize (mm)Stock
Main Bearings IncludedYes
Main Bearing Undersize (in.)Stock
Main Bearing Undersize (mm)Stock
Cam Bearings IncludedNo
Gaskets IncludedNo
Oil Pump IncludedNo
Camshaft IncludedNo
Lifters IncludedNo
Timing Chain and Gears IncludedNo
Plastigage IncludedNo
Assembly Lubricant IncludedNo
QuantitySold as a kit.
NotesFor applications with 24x reluctor.

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