The Most Powerful and Complete 1200 Production Hop-Up Available!

The Super-Hammer delivers BIG POWER without the complexity of building a big bore engine. The Super-Hammer kit requires only top end and cam chest disassembly. First to be modified are the cylinder heads with the full Zippers CNC porting treatment. After porting, the heads are fitted with Step-Lock guides, oversize valves, Viton® seals and high performance springs with titanium collars. The cylinders are torque-plate honed and precisely fitted with domed forged pistons, and Red Shift 567 cams are installed and timed on your factory cam gears. Chrome moly pushrods, a telescoping pushrod cover kit and a top quality gasket kit are supplied for re-assembly. To provide proper fuel and ignition curves, the factory ECM is replaced with the ThunderMax ECM with AutoTune, featuring wide-band oxygen sensors for quick and accurate automatic AFR tuning.

We are proud to say we offer the most powerful and complete 1200 production hop-up kit available! This kit is ideal for the Sportster® owner who wants a true max output 1200, suitable for everyday durability. Excellent power throughout the entire RPM range is what this kit offers; we’ve applied our extensive experience in cylinder head and camshaft design to this package for Torque And Horsepower That Is Head And Shoulders Above The Rest!

Zip Tip: 2004-up 883 Sportsters® have different primary and secondary gearing than the factory 1200’s do (final 4.07 [883] vs. 3.52 [1200]. We recommend lowering the final drive gear ratio when converting an 883 to 1200 with our kits.

These kits are available from any Zipper’s Performance Products dealer, or you can send your carefully packed parts directly to Zipper’s. Send cams, cylinders and heads for modification. In-shop time is generally 2-3 weeks. Please pack your parts carefully!

All kits can be purchased whole or in any combination of desired components, please contact our sales department at 410-579-2828 for more details and pricing.



Zipper’s Job Order Sheet


Not legal for sale or use in California on any pollution controlled motor vehicle.

Not legal for sale or use on any EPA pollution controlled motor vehicle.

Weight 1 lbs
Emissions Compliant

Country of Origin

Engine Type

Fuel / Air


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