t’s no secret that The Motor Company has made some significant changes inside everyone’s favorite V-twin. A redesigned cam plate and matching new-design cams are among the many new components making up the ‘07 long-stroke 96-inch engine. This change actually began with last year’s Dyna, Harley-Davidson’s perennial test mule (the 6-speed transmission debuted in the ‘06 Dyna, too.) The differences include a new-design drive chain and the plates that the cam shafts ride in are now bushed. All this means the old-style TC88 cams won’t fit the new-style engine; the diameter of the cam journals has changed, as has the thickness of the drive sprockets. Crane Cams is ready with the 2007 replacements. Six of them, actually…
     All of Crane Cams’ dyno-proven horsepower, torque and RPM enhancing performance cam grinds for the venerable Twin Cam 88 are now available for the Twin Cam 96. These computer-designed hydraulic cams come with profiles covering it all, everything from a mild street/cruising grind to cams for the most outrageous race-engine build-up. And coming from Crane, a benchmark name in the business, everything is right on the money correct with a lobe-to-lobe profile accuracy that’s spot on for everything from off-idle torque to high-RPM horsepower. There’s a complete selection of Crane hardware to complete the hop-up, too, everything from matching performance/race valve springs, to keepers, retainers and pushrods, including Crane’s Time-Saver adjustable pushrods, perhaps the strongest available.
     For mild street cruising and power touring there’s the Crane 1-6000 grind. A straight bolt-in cam swap, low-end torque and mid-range horsepower are the gains here. Stock valve springs are fine and the performance range runs from idle to around 5,000 RPM. The 1-6001 ups the ante. Another bolt-in, this grind works best in mild-performance Dynas and Softails generally ridden one-up. Crane’s 1-6002 cam set works best when coupled with other engine mods, like a compression boost up to the 10.1:1 range. The 1-6003 grind is where things start to get serious. This is the cam profile for the big-bore kits, and best power comes with compression ratios starting at 9.5:1. Crane’s valve springs, clearanced for this cam’s big .570-in. lift, are a must as are a free-flowing air filter and exhaust. Building a max-performance street engine? The Crane 1-6004 cam set with its long 254?/260? duration and .600-in. lift is meant for seriously modified engines. We’re talking motors with compression ratios of 10.5:1 and up, big-bore kits, head mods, etc. There’s an ultra-strong midrange and gobs of upper RPM power here. Crane’s 1-6005 cams round out the ‘07 selections. The profiles here are designed for big-inch engines with lots of mods (the specs are 246?/254? duration, .619-in. lift). These cams are designed especially for use with Edelbrock Performer RPM Twin Cam heads.
     The TC96 engines are here, and if Harley history is any indication, not many of them will stay bone-stock for long. Crane is here with the performance cams for them. Everything is available directly through Drag Specialties, along with all that related hardware to do the job right.