S&S CYCLE T124 Series Engine 310-0835A

If you're running an aging stock engine in your Harley-Davidson, you're leaving serious power on the table. The S&S Cycle T124 Series delivers 124 cubic inches of displacement with a 10.8:1 compression ratio—engineered specifically for street performance without sacrificing reliability. Drop this all-new long block into your bike and gain the horsepower and torque you've been missing, backed by a 2-year warranty and Made in USA quality.

This is a complete engine solution for riders who demand more from their machine. The T124 combines S&S's proven Super Stock heads, high-flow oil pump, and Easy Start 640 cams to provide responsive power delivery and easier cold-start operation. Special head machining allows the engine to work seamlessly with stock-length intake manifolds and air cleaners—no costly modifications needed.

• Displacement: 124 cubic inches
• Bore: 4-1/8"
• Stroke: 4-5/8"
• Compression: 10.8:1
• Forged flat-top pistons
• Super Stock cylinder heads
• S&S forged rocker arms
• Gear drive camshaft
• Easy Start 640 cams
• High-flow oil pump
• Stock-compatible intake manifolds
• Compatible with stock air cleaners
• Black rocker covers included
• 2-year warranty
• Made in USA
• Oil line kit required
• Not compatible with Softails
• Not recommended for Tri-Glides