S&S - HPT496 Cam for M8 Models
Available in chain and gear drive versions, this all-new cam "is everything you have wanted in a bolt-in cam," says the Viola, Wisconsin based Masters of 'Proven Performance.
"The idle lope sounds racy, but under power it really starts to sing, and, best of all, it makes significant power jumps. Designed to work with stock or S&S rocker arms and springs, the HPT496 is a very straightforward install. Bolt it in and it really wake up any M8.
"How awake? Well, when we installed it in a 2023 ST117, there was a 29 hp gain and a 7.8 lb-ft torque gain. When installed in a 2022 Touring 114, we saw a gain of 47 hp and 22.9 lb-ft of torque. For transparency, both of these bikes have an S&S air cleaner and exhaust. But who bolts in a cam and leaves the airbox and exhaust stock?"
But is this really a bolt-in cam? "We know that the internet-certified mechanics will tell you that the HPT496 won't work in a stock M8, but they are wrong. The stock rocker arms have different ratios of allowance from our upgraded S&S Cycle Rocker Arms. If you choose to leave them stock (we're not sure why you would, but you could) the HPT496 will have a lift of .485, which is the limit for bolt-in lift.
"With our S&S Cycle Rocker Arms the HPT496 has a lift of .496 (hence the name). Either way you are looking at a huge upgrade over stock performance!"
S&S CYCLE INC.