Engines and Components› Pistons and Piston Rings

CNC-Motorsports

Eagle Pro Competition Rotating Assembly Kit for Ford SB 408

$2,458.95

SKU: ESP-14124

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

The Eagle ESP-14124 is a Pro Competition rotating assembly kit designed for Ford SB 408 engines. This kit features a 4.000 stroke Eagle 4340 forged steel crankshaft and Eagle 6.200 H-Beam connecting rods. It also includes Mahle 4032 forged dish pistons with a -28cc volume.
Show original supplier description
The Eagle ESP-14124 is a Pro Competition rotating assembly kit engineered for Ford SB 408 engine builds. This comprehensive kit includes a robust Eagle 4340 forged steel crankshaft with a 4.000 stroke and Eagle 4340 H-Beam connecting rods measuring 6.200 in length. Forged Mahle 4032 pistons with a -28cc dish are also included, designed to work with conventional inline heads. This assembly is rated to support engine builds of up to 800 horsepower, with the potential to exceed 1000 horsepower with optional rod bolt upgrades. The kit is designed to accommodate both 1-piece and 2-piece rear main seals and features 3.000 Windsor main bearings. Performance H series race rod and main bearings are provided for enhanced durability. It is important to note that this rotating kit is supplied unbalanced and requires internal balancing before installation. The standard bore for a Ford 351w engine block is 4.000, with a deck height of 9.500.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

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

Available on iOS & Android

Specifications

BrandCNC-Motorsports
Part NumberESP-14124
CategoryEngines and Components
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

Buy with Confidence

Returns & Fitment

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.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy