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Eagle Oldsmobile 455 Balanced Rotating Assembly Kit

SKU: EAG42105060

Engine Rotating Kits

EAG Rotating Assy - 8 Cyl...

Eagle Oldsmobile 455 Balanced Rotating Assembly Kit

SKU: EAG42105060

Engine Rotating Kits

EAG Rotating Assy - 8 Cyl...

A$5,380.23
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

Rotating Assembly - 495 CID - Cast Crank - Forged Pistons - 4.500 in Stroke - 4.185 in Bore - 7.100 in H Beam Rods - Oldsmobile V8 - Kit

Street & Strip Assy

Eagle Street & Strip Rotating Assemblies are perfect for pump gas, naturally aspirated, street vehicles.

Additional Information

4.500" Cast Crank,7.100" H-BEAM Rods,7/16" ARP 8740 BOLTS,Forged 4032 MAHLE -22CC INV. DOME 4.185" PISTONS,PLASMA-MOLY FILE FIT RINGS,KING SI Rod/MAIN BEARINGS.

Application Summary

OLDS 455

Part Type

Engine Crankshaft Rotating Assembly

Product Overview

Eagle Competition Rotating Assembly matches the Eagle "ESP" H-Beam Connecting Rods, 4340 Steel Crankshaft, and Premium Forged Pistons from companies like Arias, JE, and SRP. Competition Assemblies COMPLETE solution and are the perfect choice for the most demanding applications.

*Street Performance Assemblies*
Eagle Street Performance Assemblies offer the perfect balance of performance, reliability, and affordability for engines under 500 hp. Each kit includes a cast steel crankshaft, “SIR” I-beam connecting rods, forged or hypereutectic pistons, plasma-moly rings, and Clevite77 bearings.

*Street & Strip Assemblies*
Eagle Street & Strip Assemblies offer the perfect balance of performance, reliability, and affordability for engines under 500 hp. Each kit includes a cast steel crankshaft, “SIR” I-beam connecting rods, forged or hypereutectic pistons, plasmamoly rings, and Clevite77 bearings.

*Pro Street Assemblies*
Eagle Pro Street Assemblies offer the perfect balance of performance, reliability, and affordability for street applications where a forged 430
steel crank is desired. Each kit includes a 4340 steel crankshaft, “SIR” I-beam connecting rods, forged or hypereutectic pistons, plasma-moly
rings, and Clevite77 bearings.

*Competition Assemblies*
Eagle Competition Assemblies offer the ultimate in strength and reliability at an affordable price. Each kit includes a 4340 steel crankshaft, H-beam rods, premium forged pistons, plasma-moly rings, and Clevite77 “H” series bearings. They are designed for internal balance. Standard bore is 4.000”. Perfect for the most demanding applications.

*Forced Induction Assemblies*
Eagle Competition Assemblies offer the ultimate in strength and reliability at an affordable price. Each kit includes a 4340 steel crankshaft, H-beam rods with upgrade ARP 2000 or L19 bolts, premium forged pistons designed specifically for forced induction engines, plasma-moly rings, and Clevite77 “H” series bearings. They are designed for internal balance. Perfect for extreme horsepower applications.


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 20:03:45

Data: v4.2 - Upd: 2026-11-07 19:56:34

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 Balanced:No
Assembly Type:Street & Strip Assembly
Balance Type:internal
Bore:4.185
Comp Ratio@77cc (@84cc):10.0 (9.5)
Connecting Rod Bolt Diameter:7/16"
Connecting Rod Bolt Material:ARP 8740
Connecting Rod Design:H-Beam
Connecting Rod Length:7.100"
Connecting Rod Material:Forged 4340 Steel
Crankshaft Center Counterweights:No
Crankshaft Flange Bolt Holes:6
Crankshaft Main Journal Diameter:3.000"
Crankshaft Material:Cast Steel
Crankshaft Reluctor:No
Crankshaft Rod Journal Diameter:2.200"
Crankshaft Stroke:4.500"
Cylinder Bore Diameter:4.185"
Damper Included:No
Description:Street & Strip Assembly; Mahle -22cc Inv Dome Pistons; FF Rings
Flexplate/Flywheel Included:No
Main Bearing Type:O.E. Replacement
Main Bearings Included:Yes
Oil Rail Support Included:No
Part Number:eag42105060
Piston Brand:Mahle
Piston Dome Volume:-22cc
Piston Face Type:inveted dome
Piston Material:Forged 4032 Aluminum
Piston Pin Diameter:.990"
Piston Pin Type:Full Floating
Piston Ring Gap:file fit
Piston Ring Thickness:1.0mm, 1.0mm, 2.0mm
Piston Type:Inverted Dome Forged
Product Line:Street & Strip
Rod Bearing Type:O.E. replacement
Rod Bearings Included:Yes
Rod:7.100"
Second Piston Ring Type:Reverse Twist Iron
Stroke:4.500"
Thrust Washer Included:No
Title:Eagle Specialty Prod. Rotating Assembly
Top Piston Ring Type:Barrel Faced Plasma-Moly

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Eagle, Eagle Specialty Products
StreetFX SKU eag42105060
SFX Item ID 4052934
Accounting SKU eag-42105060
Manufacturer SKU 42105060
Manufacturer UPC 793348802343
Alternative References ESP-42105060

Rotating Assembly, Street/Strip, Cast Steel Crankshaft, Forged Dish Pistons, 2 pc. Seal, Oldsmobile, 495, Kit

Eagle Street and Strip rotating assemblies consist of name-brand quality components for a wide range of engines at an affordable price. These kits feature a crankshaft, pistons, piston rings, rod and main bearings, and connecting rods. Based on your application, 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 Number42105060
Part TypeEngine Rotating Kits
Product LineEagle Street and Strip Rotating Assemblies
UPC793348802343
Actual Engine Displacement8.1L/495
Rear Main Seal Style2-piece
Bore (in.)4.185 in.
Bore (mm)106.299mm
Engine Stroke (in.)4.500 in.
BalancedNo
Piston MaterialForged aluminum
Piston StyleDish, with a D-shaped cup
Harmonic Balancer IncludedNo
Flexplate IncludedNo
Flywheel IncludedNo
Pistons IncludedYes
Piston Head Volume (cc)+22.00cc
Wrist Pin StyleFloating
Piston Rings IncludedYes
Piston Ring Facing MaterialPlasmamoly
Piston and Ring Oversize (in.)0.060 in.
Crankshaft IncludedYes
Crankshaft MaterialCast steel
Engine BalanceExternal
Connecting Rods IncludedYes
Connecting Rod Length Center to Center (in.)7.100 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.

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