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Top End Components

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Top End Components

Unlock the hidden potential of your engine with powerful Top End upgrades from Zipper’s Performance Products. Zipper’s Performance keeps specially CNC-machined heads in stock for super-quick turnaround (on an exchange basis) for Twin Cam® and Sportster® engines. Twin Cam® big bore cylinder conversions for 88 to 95” and 98″ plus 96 to 103” and 107″ fitted with forged pistons in many different compression ratios for fast turnaround or exchange. Zipper’s Performance also stocks pistons, valves, guides, valve spring kits, and other critical top end parts from the industry’s most renowned manufacturers.

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Zippers Performance Products

Zipper's is located in Elkridge, MD in the business park at the junction of MD100 and US1, just south of Baltimore.

6655-A Amberton Drive Elkridge, MD 21075
Phone: 410-579-2828
Open: Monday – Friday, 9am to 6pm EST

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