| Valve Lift |
Duration |
Description |
Hard Weld |
New Cam |
| .360/.312 |
266º/246º |
Performance profile to bolt into a stock engine. Increases power throughout the RPM range. |
21-70-951 |
21-70-952 |
| .368/.322 |
261º/244º |
Designed for turbo applications to increase overall performance. |
21-70-161 |
21-70-162 |
| .378/.330 |
267º/252º |
Designed
to increase overall performance. Check retainer to guide seal
clearance. Minimum .030. Performance springs required. |
21-70-751 |
21-70-752 |
| .395/.378 |
266º/267º |
Designed
to increase mid and upper end power. Must be used with a
performance piston and exhaust system. Performance springs and
shortened valve guides required! New cams must be hardwelded |
21-70-761 |
21-70-762 |
| .415/.395 |
268º/266º |
Performance profile designed to increase mid and upper end. Requires Exhaust System, High Compression Piston, Shortened Valve Guides, and Performance Valve Spring Kit.
New
cams must be hardwelded. |
21-70-841 |
21-70-842 |
| .425/.415 |
277º/268º |
Performance profile designed to increase mid and upper end. Requires Exhaust System, High Compression Piston, Shortened Valve Guides, and Performance Valve Spring Kit.
New
cams must be hardwelded. |
21-70-631 |
21-70-632 |
| .445/.415 |
268º/268º |
Race
profile.
Requires Exhaust System, High Compression Piston, Shortened Valve Guides, and Performance Valve Spring Kit.
New
cams must be hardwelded. Check all clearances!! |
21-70-891 |
21-70-892 |
| .460/.415 |
268º/268º |
Race
profile. Requires Exhaust System, High Compression Piston, Shortened Valve Guides, and Performance Valve Spring Kit.
New cams must be hardwelded. Check all clearances!! |
21-70-601 |
21-70-602 |
All parts sold by MPS are for off road closed course use. They are not intended for use on public streets or highways.
Motorcycle
Performance Specialties
380 Orange Lane - Casselberry, Florida 32707
Phone: (321) 972-8282 - Fax: (321) 972-5123
Hours: 9am - 5pm, Monday - Friday
Sales E-Mail: mailto:sales@mpsracing.com">sales@mpsracing.com
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