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Engines and Components› Connecting Rods and Components

Manley Performance

Manley Rotating Assembly, SBC 355 3.480 STROKE/-4cc FLAT

$2,909.13 $2,862.38 Save $46.75

SKU: M004 290730X

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Special Order
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Non-Returnable Item
INSTALL DIFFICULTY
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Advanced — 4+ hours

Description

Part #: 290730X

Features:

    • Lightweight 4340 forged steel crankshaft
    • 4340 Forged steel H-Beam connecting rods with 7/16? ARP 8740 or optional ARP 2000 cap screws*
    • 2618 Forged aluminum Platinum Series pistons with Premium Chrome Moly wrist pins
    • Horsepower range is 750 with the ARP 8740 and 1,500 with the optional ARP 2000 cap screws

Manley Rotaing Assembly, SBC 355 3.480 STROKE/-4cc FLAT.

This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

MIA's Description

This Manley Performance rotating assembly is designed for Small Block Chevrolet 350 engine blocks with 350 main journal diameters. It's configured for a 355 cubic inch displacement, featuring a 3.480'' stroke and a 4.030'' bore.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

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Specifications

BrandManley Performance
Part NumberM004 290730X

Videos

Manley Performance Factory Tour - Pistons, Connecting Rods, Valvetrain Manufacturing | RS Garage

Manley Performance Factory Tour - Pistons, Connecting Rods, Valvetrain Manufacturing | RS Garage
Balancing the rotating assembly for a small-block Chevy V8

Balancing the rotating assembly for a small-block Chevy V8
Engine Balance! Way Out! Just Gonna Send It!

Engine Balance! Way Out! Just Gonna Send It!
Do you need to Balance your engine??? Will it survive if you don’t???

Do you need to Balance your engine??? Will it survive if you don’t???
Fool proof installing pistons on rods of a Small Block Chevy

Fool proof installing pistons on rods of a Small Block Chevy
Assembling A Short Block For The Home Engine Builder

Assembling A Short Block For The Home Engine Builder
HOW TO Balance Your Rotating Assembly on A Budget Save Money Do it Your…

HOW TO Balance Your Rotating Assembly on A Budget Save Money Do it Your…
Chinese H Beam Rods

Chinese H Beam Rods

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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