Engines and Components Connecting Rods and Components

Manley Performance

Manley Small Block Chevy .300 Inch Longer Sportsmaster Connecting Rods

$995.62

SKU: M004 14103-8

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Special Order
Ships in 4–6 weeks
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Description

Part #: 14103-8

Elevate your racing performance with the Sportsmaster Series Connecting Rods from Manley Performance Products. Precision engineering, top-quality materials, and affordability make them the preferred choice for racers who demand the best value.

Features:

    • Stock Replacement Excellence: Tailored for stock replacement and mild performance applications, these connecting rods are designed to meet class rules that require a "stock appearing" rod.
    • Precision Engineering: Each rod features machined cap and outer beams, highlighting our commitment to precision and quality.
    • ARP Cap Screws: The Sportsmaster? Series connecting rods are equipped with ARP cap screws, further enhancing their strength and reliability.
    • Lightweight and Affordable Performance Without Compromise: These rods strike the perfect balance between lightweight design and affordability, making them a preferred choice for racers seeking quality without breaking the bank.

Connecting Rod - Sportsmaster - I Beam - 6.000 in Long - 3/8 in Cap Screws - Forged Steel - Small Block Chevy - Set of 8

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

Manley Performance 14103-8 Sportsmaster Connecting Rods are forged from aircraft quality 4340 material and are 100% individually magnafluxed. They feature a center-to-center length of 6.000”, a big end bore of 2.225”, a .9281” pin bore, and an average gram weight of 570g. These connecting rods are shot peened after machining to MIL spec and include 3/8” ARP 8740 cap screws and premium Ampco pin bushings.

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 14103-8

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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