Polaris Freedom engines have a lot of potential. With 92 cubic inches, 4 valve heads and a 9.2 compression ratio, more performance is only a pair of camshafts away. The 438 makes a great setup with a street bike with stock engine or a tuned engine with stock or larger displacement.The 460 cams are a perfect match for the factory 100 kits.
Duration Valve Lift@
17/45 242 269 .412 .108 Stock
46/11 236 265 .406 .085 Stock
More valve lift and duration means extra power thru RPM (2000-6000+) range for bolt-in or modified engines. Piston-valve clearance should be checked.
The Air Resources Board (ARB) does not permit the use of aftermarket emission-related parts that alter the air/fuel ratio of an emission-controlled vehicle. Due to these legal restrictions this part cannot be shipped to California.
Part 1400961 fits the following machines