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NEW! 2007-up ThunderMax Cams by Red Shift
ThunderMax cams by Red Shift are ground from 1-piece 8620 steel billets. Red Shift cams provide smooth, linear power with great valve train dynamics. The stroked crankshaft in the 2007 models changes the dynamic from previous year TC88 engines, making correct cam choice crucial to avoid engine damaging detonation with today’s lessening fuel quality. Several models are available to best match stock or other installed engine components.
575S: 96" and 110” Engines
Zipper’s Part Number 413-926S
Bolt-in cams for 2007-08 Twin Cam
Great bolt-in upgrade for stock 96 or 110” engines
Increases torque and horsepower across the board
No headwork required, chain drive only
Requires adjustable pushrods
577S: 103” Engines
Zipper’s Part Number 413-921S
Strong performer for 2007-up 103” conversion engines with flat-top pistons and stock 96” heads
Provides smooth power without detonation
Broader timing for lower cranking compression
No headwork required; chain drive only
Requires adjustable pushrods
647S: 113” and Larger Engines
Zipper’s Part Number 413-931S
Max power grind for 2007-up larger displacement engines
Broader timing for higher compression engines
Great valve train dynamics for long life
Compliments high flow heads, intake and exhaust
Chain drive only; headwork required
Requires adjustable pushrods
657S: 107” and Larger Engines:
Zipper’s Part Number 413-941S
Max torque grind for 2007-up larger displacement with heavy payload
Narrower timing for more low-end grunt
Excellent valve train dynamics for long life
Works well with most bagger exhaust
Chain drive only; headwork required
Requires adjustable pushrods
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Topic: New Thundermax Cams From Red Shift For 2007-UP Twin Cams (Read 1365 times)