Availability

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Filters
Maximum Valve Lift (in.)
- 0.750 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.800 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Outside Diameter of Outer Spring (in.)
- 1.550 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1.625 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Installed Height (in.)
- 1.880 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 2.000 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Seat Pressure at Installed Height (lbs.)
- 230 lbs. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 240 lbs. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Coil Bind Height (in.)
- 1.080 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1.150 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Open Pressure (lbs.)
- 550 lbs. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 685 lbs. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Damper Spring Included
- No (1)
- Yes (1)
Spring Rate (lbs./in.)
- 508 lbs./in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 593 lbs./in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Inside Diameter of Inner Spring (in.)
- 0.770 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 0.815 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.

Howards Cams Pro-Alloy Mechanical Roller Valve Springs

5.0 out of 5 stars 1 Customer Reviews

Howards Cams' Pro-Alloy is a specially developed low-stress, high-endurance material. Years of development, experience, and testing have gone into creating these Pro-Alloy mechanical roller valve springs. They have a low fatigue rate compared to most other roller springs on the market. These springs exceed H-11 Vasco-Jet specifications and are cycle-tested to 12 million cycles with no breakage.

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