510-0728 M8 only brochure_no_MSRP

CAMSHAFT SPECS 350: Stock specs, but eliminates cam drive chain & tensioner

465: Bolt-in cam designed to make best power from 1500–4500 RPM. Excellent low and mid-range torque make this a great choice for two-up riding and touring where low end grunt is the priority. Works great with stock bore, heads and throttle body and with compression ratios up to around 10:1. 475: Bolt-in cam providing best power from 2200–5200 RPM in engines with displacements from 107–135 cubic inches. Compatible with compression ratios up to 11:1. Works great with stock heads and throttle body for mid range power but with the ability to stretch the power higher into the RPM band with more mods.

540: Designed to add even more stump pulling torque to your big bore M8, for those that keep the revs below 6000 RPM when combined with 124 & larger big bore kits.

550: High lift cams for maximizing peak torque and horsepower. Designed to make top end power in combination with our big bore cylinder and piston kits. Excellent power from 3000 RPM to redline. Requires performance valve springs and adjustable pushrods. Suitable for compression ratios between 10:1 and 12-1.

590: Designed as an all out Horsepower Cam for 124 and larger engines. Big lift lets your big mill breathe high into the RPM range!

S&S® CAMSHAFT SPECIFICATIONS

Valve Timing

Valve Duration

Valve Lift

Lobe Center Line

Valve Lift @ TDC

Intake

Exhaust

Cam Name

Cylinder

Intake Exhaust

Intake Exhaust Intake Exhaust Intake

Exhaust

Open BTDC/ Close ABDC

Open BBDC/ Close ATDC

350G Stock Grind Gear Drive

Both

-7.0/1.0

33.0/-14.0

174.0

199.0

.350

.374

94.0

113.5

.057

.048

Front Rear Front Rear Front Rear Front Rear Front Rear

2.6/14.6 2.8/14.4 6.2/27.2 2.2/31.2 17.7/30.6 14.9/28.7 9.4/29.4 3.1/31.1 15.6/43.7 20.2/53.6

30.1/8.8 33.1/5.8 55.5/28.5 52.5/20.2 21.2/33.9 37.7/26.9 62.5/30.5 59.4/38.4 64.8/21.2 62.7/15.7

197.2 197.2 213.5 213.5 228.3 223.6 218.9 214.2 239.4 253.9

218.9 218.9 263.9 252.5 235.1 244.6 273.1 277.8 266.1 258.4

.462 .462 .475 .475

.462 .462 .475 .475

96.0 95.8

100.6 103.6 103.5 106.0

.087 .088 .107 .093

.109 .098 .208 .170

465 Performance

100.5 104.5

475 HP

0.540 0.540 0.540 0.540

96.4 96.9

83.6 95.4

0.175 0.161

0.262 0.216

540 Big Bore Torque

.550 .550 0.59 0.59

.550 .550 0.59 0.59

100.0 104.0 104.1 106.7

106.0 100.5 111.7 113.5

.127 .099

.232 .264

550 Big Bore

0.165 0.186

0.186 0.158

Valve Train

590 Big Bore Max HP

DISCLAIMER: NOT LEGAL FOR SALE OR USE IN CALIFORNIA ON ANY POLLUTION CONTROLLED MOTOR VEHICLE. NOT LEGAL FOR SALE OR USE NATIONWIDE ON ANY FEDERAL POLLUTION CONTROLLED MOTOR VEHICLE UNDER THE CLEAN AIR ACT

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