Hammer Performance - for All Your Harley Davidson XL Sportster and Big Twin Performance Needs
Hammer Performance Horizontal Bar



Dyno Room and Results for Harley Davidson and Buell Performance Products and Services from HAMMER PERFORMANCE


New Harley Davidson and Buell Performance Products from HAMMER PERFORMANCE


Garage Sale Products from HAMMER PERFORMANCE


Harley Davidson and Buell Performance Photo Gallery


Pictures of Harley Davidson and Buell Performance Cylinder Heads


Pictures of Custom Air Hammer Air Cleaners








NEW PRODUCTS

Quick Links:


Bolt-On 1275 Kits for XL's & Buells - from $649.95


2004-Present Big Fin 1275 Kit for Harley Davidson XL Sportster and Buell Models


The Most Displacement Possible in a Bolt-on Kit
Exlusively From HAMMER PERFORMANCE!

By using a special 120,000psi tensile strength steel liner, HAMMER has rewritten the rules for bolt-on Sportster performance. These kits make it possible to achieve new levels of performance without the expense and hassle of a full tear-down to bore the cases. Available Now!


CNC Fin Edges on 1250 Cylinders - No Extra Charge!


Effective immediately, all HAMMER PERFORMANCE 1250 kit cylinders are available with CNC machined fin edges at no extra charge! This process greatly enhances the appearance and provides a better match to factory heads with machined fin edges.


Sportster 1250 Kit Cylinder with Machined Fin Edges

This service is available on both small fin (86-03) and big fin (04+) cylinders

If you already have a HAMMER 1250 kit and you'd like this treatment to your cylinders, we'll do it for FREE, just send them back to us.


Machined Steel Timing Cups


CNC Machined Steel Timing Cup for Harley Davidson Motorcycles


Eliminate the failure prone factory stamped steel timing cup that's left so many riders stranded! The HAMMER machined steel timing cup is extra strong and the hub won't fracture and separate the way the stock piece does. Available Now!


NEW DESIGN HAMMER PERFORMANCE T-Shirts - Only $15

Intimidate Your Competition Right Before You Pound Them!

Hammer Performance T-Shirt Front
Front
Hammer Performance T-Shirt Back
Back

We have a new T-shirt design! Perfect for any occasion, from going to the track to a formal State Dinner at the White House (by the way, a free t-shirt to the first person to wear one at a State Dinner). Available Now!


Hammer Performance T-Shirts

Description

Price

Add to Cart

Black with White & Red Design & Engine Image

$15

Size

Billet Aluminum ACR Plugs for Twin Cams - only $19.95!


HAMMER PERFORMANCE Billet Aluminum ACR plugs for Harley Davidson Twin Cam Automatic Compression Releases


CNC machined from 6061T6 billet aluminum, these plugs provide an effective means for blocking off the automatic compression release holes found in many late model Twin Cam heads. Because they're aluminum, they can welded and machined, the ideal solution to eliminate the fuel trap hot spot caused by the ACR hole. Also excellent for machining angled squish bands. Available Now!


.570 Lift Cams for XL's - Only $325!


HAMMER PERFORMANCE JackHammer 570 camshafts for 1991-present Harley Davidson Sportsters


Are you looking for a low-cost way to add 4-8hp to your late model 1200 with no other changes needed? And not lose any power anywhere in the rpm range? This is the cam set for you! Using a set of Cycle Shack slip-ons, this cam set showed a strong 4+hp gain over a wide rpm range as compared to the stock "W" cams in our test bike. Using a Patriot Defender exhaust, the gain came in at over 8 horsepower! In both cases, no bottom end power was lost at all. Small base circle to simplify installation. Fits 91-up Sportsters and 95-2002 Buells. Bolt-in for 04-up XL1200's only. As with all HAMMER Cam grinds, these cams are easy on the valvetrain and quiet in operation. Available Now!

Check out these dyno results! These were taken on a 2007 XL1200 equipped with an Air Hammer air cleaner and the exhaust as shown. Tuned with a Dynojet Powervision. Click for larger view.


Jackhammer 570 vs Stock W cams dyno chart with Cycle Shack slip-on mufflers
JACKHAMMER 570 vs. Stock "W" cams
Using Cycle Shack Slip-ons
Jackhammer 570 vs Stock W cams dyno chart with Patriot exhaust
JACKHAMMER 570 vs. Stock "W" cams
Using Patriot Defender

GRINDLOCK Pinion Locking Tools - Only $50


HAMMER PERFORMANCE GrindLock Pinion Locking Tool for 2000-present Harley Davidson Sportsters


Frustrated by pinion locking tools that slip or have the teeth rip off? HAMMER PERFORMANCE has the solution! These pinion locking tools are CNC machined from a solid chunk of 6061T6 billet aluminum and precisely fit the teeth on an XL. No slipping, no damage, no drama, it just works. Available now!


.660 Lift Cams for XL's - Only $350!


HAMMER PERFORMANCE Sledge 660 camshafts for 1991-present Harley Davidson Sportsters


Big power for your big motor build! HAMMER PERFORMANCE "SLEDGE 660 Cams" deliver the goods for your 88 to 100 cubic inch Sportster build! These are tall and broad cams to make sure your monster motor gets all the air it needs. Excellent dynamics mean they run quietly and are easy on the valvetrain. Small base circle to simplify cam box clearancing. Fits 91-05 Sportsters and 95-2002 Buells (2000 & newer models require a 91-99 pinion gear). Available Now!

Check out these dyno results! These were taken on a Buell S1W equipped with a HAMMER/Axtell 90ci kit. Click for larger view.

Sledge 660 vs Wood W68S vs. RS643 dyno chart
SLEDGE 660 vs. other popular big bore cam grinds

30 Degree Reverse Dome Conversion Pistons - $309.95


30 degree reverse dome 883 to 1250 conversion piston


The Ultimate XL Piston - Now Available for 883/1250 Conversions!

The newest member of our lineup of 30 degree reverse dome 1250 pistons, this one is specifically made to be used under 883 heads! The dome is sized appropriately for 883 heads that have their chambers machined to 30 degrees and have been prepared to the SMASH level. In our testing, this piston delivered an astonishing 108.8 horsepower when combined with SMASH ported 883 heads and IMPACT 560 cams! Available now either in your new 1250 kit or separately!


Exposed Element Air Hammer Air Cleaners for XL's - From $209.95


Exposed Element Air Cleaners for Harley Davidson XL Sportster Models


Go Naked on Your Sportster!

Do you like the exposed element look? Then this air cleaner is for you! Customize the text for no extra charge as well! The cover is smooth and easy to polish to a bright shine, and the recessed screws give it a very clean look. Fits all 1991-up Sportsters. Outer plate also available separately to convert 04-up style Air Hammer Air Cleaners to the naked look. Available Now!


Billet Intake Manifolds for XL's - Only $175


Billet Intake Manifolds to Use a Mikuni HSR45 or CV44 Carburetor on Harley Davidson XL Sportster Models


Designed for Maximum Torque and Horsepower! Allows Fitment of Large Carburetors!

Computer designed and then CNC machined from a solid chunk of 6061T6 billet aluminum, these manifolds deliver maximum flow which translates directly into more TORQUE and POWER for your hot rod Sportster. Plus, they give you a way to mount a CV44 or Mikuni HSR45 or HSR48 to your bike for even more power. And on top of that, they look as great as they work! Mounts the carburetor in the stock location and compatible with standard carb mounting hardware. Offered with or without provision for manifold pressure sensor as used on 04-06 models. Also offered in special wide versions to allow the use of 2007-up EFI Sportster heads with a carburetor. Available Now!


30 Degree Reverse Dome Pistons for XL's - Only $309.95/set


30 Degree Reverse Dome Pistons for Harley Davidson XL Sportster Models


30 Degree Domes for Street Motors!

30 degree piston domes give the ultimate in chamber efficiency but have traditionally been limited to race motors due to the large domes required to get good squish band surface area. Until now that is! Our exclusive 30 degree reverse dome pistons break the rules and allow a tall dome with plenty of squish area while the reverse dome keeps your motor pump gas friendly! No more compromises with shallow angles, with these pistons you can have your cake and eat it too. Available Now!


Billet Motor Mounts for Buell Blast Models - Only $160


Billet Front Motor Mount for Buell Blast Models


Strong and Beautiful - Available for XL or XB Style Heads

These billet motor mounts are precision CNC machined from a solid chunk of T6061 aluminum billet. They replace the failure-prone factory mount and look beautiful in the process. Available to fit the standard bolt spacing of the 1986-2003 XL heads, as well as the narrower bolt spacing of Buell XB and 2004-newer XL heads. Available Now!


HAMMER PERFORMANCE T-Shirts - Only $12

You Asked For It - Here They Are!

Hammer Performance T-Shirt Back
Preview of Back
Hammer Performance T-Shirt Front
Preview of Front
Click for Larger Image

Probably our single most requested item, HAMMER PERFORMANCE is now making T-shirts available! Show the rest of the world that your Harley or Buell has only the finest performance parts in it. 100% pre-shrunk cotton available in a wide range of sizes. Available Now!


Hammer Performance T-Shirts

Description

Price

Add to Cart

Black with white logo on back and small white logo on left front chest

$12

Size

.560 and .600 Lift Cams for XL's - Only $325


HAMMER PERFORMANCE Crush 600 camshafts for 1991-present Harley Davidson Sportsters


Do you want easy installation, quiet operation, and BIG torque and horsepower from your Sportster? HAMMER PERFORMANCE just came out with two new cam grinds that really deliver! The IMPACT 560 grind is for stock or Impact ported heads and delivers a nice wide powerband with power from low to high. The CRUSH 600 cams are for the guy with Smash, Crush, or Sledge heads looking to make the big horsepower numbers. Both cam grinds are very streetable. Available Now!

Check out these dyno results! These were taken on a Buell S1 equipped with a HAMMER PERFORMANCE 1250 kit. Click for larger view.

Impact 560 vs SE 536 cams dyno chart
IMPACT 560 vs. SE .536 cams
Crush 600 vs SE 536 cams dyno chart
CRUSH 600 vs. SE .536 cams

Billet Pushrod Tube Base Kits - Only $44.95


Billet Aluminum Pushrod Tube Bases for 1991-2003 Sportster and 1991-2002 Buell Twins


Replace those ugly, leaky pot-metal pushrod base retainers with these beautiful CNC billet aluminum pieces from Hammer Performance! Available Now


Collapsible Pushrod Tube Kits - From $90


Collapsible Pushrod Tube Kit for Sportsters and Buells


Now available from Hammer Performance, collapsible pushrod tube kits that both work great and are beautiful as well! Available Now


Air Hammer Billet Air Cleaners for Sportsters and Buells - from $149.95

For Sportsters

Air Hammer Air Cleaner from HAMMER PERFORMANCE, 04-Up Sportster 3 Inch
Air Hammer Air Cleaner from HAMMER PERFORMANCE, 04-Up Sportster Offset Style
Uses your stock air cleaner cover

For Buells

Air Hammer Air Cleaner from HAMMER PERFORMANCE, 96-02 Buell Twins (except S2)
Air Hammer Air Cleaner from HAMMER PERFORMANCE, 96-02 Buell Twins (except S2)


Designed for maximum horsepower!

Air Hammer Billet Air Cleaners are precision CNC machined from T6061 aluminum billet. They feature a specially designed radius ring to maximize air flow and cylinder fill. Hi flow cleanable & reusable filter elements with huge surface area top off these premium offerings. Available Now


Billet Motor Mounts for 95-02 Buell Twins - Only $229


Billet Front Motor Mount for 1995-2002 Buells


Strong and Beautiful - Available for XL or XB style Heads

These billet motor mounts are precision CNC machined from a solid chunk of T6061 aluminum billet. They replace the failure-prone factory mount and look beautiful in the process. Available to fit the standard bolt spacing of the 1995-2002 Buell / 1986-2003 XL heads, as well as the narrower bolt spacing of Buell XB and 2004-newer XL heads. Available Now!

Free Web Counter