Engines and Components› Engines, Blocks and Components
S&S Cycle
124" Chain Drive Power Pack
SKU: 310-1054
Advanced — 4+ hours
Description
This kit provides a big bore upgrade from 107″ to 124″ for a stock stroke flywheel. It features a wrinkle black finish with highlighted fins and a 4.250″ bore size with forged pistons and an 11:1 compression ratio. The power pack includes a precision-machined billet aluminum oil pump/cam plate with a blue anodized finish and a 550 cam designed for big bore applications with a chain drive.
Included components also feature Quickee pushrods, black pushrod tubes, S&S Precision Tappets, and tappet cuffs made from billet aluminum with a hard anodized black coating for improved stability. The high-performance conical single wire valve springs work well with cams up to .605 lift.
Fitment
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Specifications
| Brand | S&S Cycle |
| Part Number | 310-1054 |
| Category | Engines and Components |
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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