Sledge - $1200:
Hit it as Hard as You Can, Use a Sledge!
For your maximum-effort engine, we offer the Sledge Hammer service.
The Sledge service builds on the Crush service, including all of the high-tech preparation and premium
componentry. But what if your application needs even bigger valves, that require a seat change? What if you want
to use an angle dome piston? Or install compression releases? Or dual plug your heads?
Sure, you can add those services (and others) to your Crush heads ala carte. But the Sledge service includes any or all
of these extras for no extra charge, saving you money!
But the real advantage to the Sledge level is a whole different, exclusive porting process. You see, CNC is a great way
to port heads. It results in far more repeatability and consistency than is possible with a human using a die grinder. But
it's big strength is also it's big weakness; every port comes out the same.
So what do you do when the size of your motor, and the way you have it cammed, and the way you intend to run it, is not a perfect
match for the CNC port profile? Well, until now your choices were to get a hand porting job (and hope that the person with the die grinder
does it well matched to your application, which is a big "if"), or live with a one-size-fits-all CNC porting job.
At Hammer Performance, these choices weren't good enough. We set out to solve the problem, and spent years and countless man-hours developing
and refining the ultimate solution:
Screen Shot of the Hammer Performance Port Generating program, set for SLEDGE mode
As you can see, our port generating program, when set for Sledge heads, allows key engine parameters as
well as target rpm to be input. Based on these numbers, the program calculates the ideal port cross sectional area
for the application and generates a CNC program, on the fly, to perfectly match.
This program was developed in-house, and nobody else has anything like it. If you want the advantages of CNC, but still want your
heads custom-fit to your application like a fine Italian suit, Hammer Performance has the answer!
This process has been in place and continually refined since 2003, and it's been used on literally thousands of heads since then. The
results have been stunning, from the hundreds of satisfied street riders to the numerous records broken at the Bonneville Salt Flats.
The Sledge level includes even larger oversized high flow stainless steel valves than the Crush level (up to 2.100" is
possible in a Twin Cam head) and a spring pack matched specifically to your application (up to .800" lift!).
Titanium retainers and super strong 10 degree locks are standard at the Sledge level.
Call the experts at Hammer Performance today to discuss your project and make sure you get
exactly what you need.
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