Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Eagle Chevrolet 350 1 & 2 Piece Rear Seal / Chevrolet 305 1 & 2 Piece Rear Seal / Chevrolet 400 Smal

SKU: EAGSIR5850BBLW

Connecting Rods

EAG Conrods I-Beam - 8 Cyl...

Eagle Chevrolet 350 1 & 2 Piece Rear Seal / Chevrolet 305 1 & 2 Piece Rear Seal / Chevrolet 400 Smal

SKU: EAGSIR5850BBLW

Connecting Rods

EAG Conrods I-Beam - 8 Cyl...

A$859.05
IN STOCK! Est Ship 3-7 Days days. In stock at 1 location (4 available)

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Eagle Chevrolet 350 1 & 2 Piece Rear Seal / Chevrolet 305 1 & 2 Piece Rear Seal / Chevrolet 400 Smal

Eagle's commitment to quality and service has resulted in customer loyalty and satisfaction. This, in turn, has fueled rapid growth over the years. Eagle added crankshafts to our lineup a few years later as well as expanding our offerings in Connecting Rods. Continuous design improvements and improvements in materials and manufacturing techniques have resulted in Eagle being the largest and most respected aftermarket connecting rod and crank manufacturer in the industry. We never stop researching ways to make our products lighter, stronger, more efficient to manufacture, and more diverse. When you stop moving forward, you get passed by the competition.

Additional Information

5.850" 5140 STEEL I-BEAM, 3/8" ARP 8740 BOLTS

Application Summary

NA

Part Type

Engine Connecting Rod


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 20:04:13

Data: v4.2 - Upd: 2026-11-07 19:55:37

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

Bolts:3/8" ARP 8740
Description:SIR I-Beam Connecting Rods; Bushed; Set of 8
Housing Bore:2.225
Length Center Bore To Center Bore:5.85
Length:5.850"
Material:Forged 5140 steel
Part Number:eagSIR5850BBLW
Pin Size:0.927
Rod Journal:2.1
Title:ESP 5140 STEEL I-BEAM CHEV SB 5.850" BUSHED
Weight:580g

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Eagle, Eagle Specialty Products
StreetFX SKU eagSIR5850BBLW
SFX Item ID 4053338
Accounting SKU eag-SIR5850BBLW
Manufacturer SKU SIR5850BBLW
Manufacturer UPC N/A
Alternative References ESP-SIR5850BBLW

5140 STEEL I-BEAM CHEV SB 5.850" BUSHED

Why spend time and money reconditioning your stock rods—when you can upgrade to a set of Eagle SIR I-Beam connecting rods for less? They're forged from 5140 steel for outstanding strength and reliability, and they come in both press-fit and bushed pin models. Their lightweight design places less stress on the rest of your rotating assembly to increase engine life and better handle high-rpm use. The rods are X-rayed, sonic-tested, magnafluxed, and shot-peened to stress-relieve the metal. They come with 12-point ARP Wave-Lok rod bolts and are weight-matched to within two grams. The big end sizing is controlled by in-house CNC equipment to ensure precise machining and accurate fitment. Order the individual rod or set recommended for your year/make and engine application.

Product Attributes
BrandEagle Specialty Products
Manufacturer's Part NumberSIR5850BBLW
Part TypeConnecting Rods
Product LineEagle SIR I-Beam Connecting Rods
UPC793348068923
Connecting Rod Length Center to Center (in.)5.850 in.
Connecting Rod Beam StyleI-beam
Connecting Rod MaterialForged 5140 steel
Wrist Pin StyleFloating
Pin End Bore Diameter0.927 in.
Rod Journal Diameter (in.)2.100
Big End Bore Diameter (in.)2.2250
QuantitySold as a set of 8.
Cap Retention StyleCap screw
Big End Width (in.)0.940
Clearanced for StrokerNo
Connecting Rod Bolt BrandARP
Connecting Rod Bolt Diameter3/8 in.
Connecting Rod Bolt Material8740 chromoly steel
Fastener Tensile Strength (psi)190,000 psi
Connecting Rod Bolt Head Style12-point
Approximate Connecting Rod Weight (g)580
Pin End Width (in.)1.063 in.
Weight Matched SetYes
RemanufacturedNo
MagnafluxedYes
Connecting Rod ColorShot-peened

Compatibility

Loading compatibility information...

Keep shopping

More from Eagle