VALVE SPRINGS MAX EFFORT™ MECHANICAL ROLLER VALVE SPRINGS Howards™ Cams competition racing valve springs are CNC coiled and heat-treated in the finest facilities available. Using only the highest quality valve spring wire, all Howards™ valve springs are stress relieved, ground and shot-peened to offer our customers some of the very best valve springs on the market. Whether you’re running a flat tappet or roller cam in your drag race, circle track, road course, performance marine or other extreme race application, Howards™ offers the perfect valve spring to suit your needs. Sets of 16. Style 98541
98441 98431 98541 98634 98633 98630 98635 98732
Dual Dual Dual Dual Dual Dual
Dual with Damper Dual with Damper with Damper with Damper with Damper with Damper
Outer O.D.
Outer I.D.
Inner O.D.
Inner I.D.
Damper
1.437 1.437 1.500 1.557 1.557 1.539 1.557 1.635
1.080 1.080 1.116 1.143 1.143 1.125 1.143 1.185
1.080 1.015 1.116 1.000 1.015 1.015 1.033 1.065
.796 .731 .800 .760 .731 .731 .749 .769
N Y N Y Y Y Y Y
98635
ELECTRO POLISHED MAX EFFORT™ MECHANICAL ROLLER VALVE SPRINGS Manufactured of aircraft-grade chrome silicone, with advanced heat-treating. Outers then receive an advanced electro polished finish and stress relieved. This enhanced finish increases valve spring life and fatigue resistance, for lap after lap consistency. Designed for mechanical applications. Sets of 16.
98650
98650 98655
Style
Outer O.D.
Outer I.D.
Inner O.D.
Inner I.D.
Damper
Dual with Damper Dual with Damper
1.539 1.557
1.125 1.143
1.015 1.033
.731 .749
Y Y
PRO-ALLOY MECHANICAL ROLLER VALVE SPRINGS Howards Cams™ Pro-Alloy material is specially developed low stress, high endurance material. Howards Cams research and development staff spent many years of development, experience and testing to create a spring you can count on. Low fatigue rate compared to most roller springs on the market. Cycle tested to 12 million cycles with no breakage. Each spring is coiled using the most advance CNC winders in the industry. Each spring is then parallel ground, stress relieved and deburred. They are then shotpeened and heat-treated to our own very specific standards. These high standards are what it takes for a longer spring life, even in rough racing environment. Sets of 16.
98738-A
98643 98737 98738-A 98048 98049
Style
Outer O.D.
Outer I.D.
Dual Dual with Damper Dual Triple Triple
1.540 1.625 1.640 1.660 1.660
1.126 1.174 1.210 1.210 1.215
Middle O.D.
Middle I.D.
Inner O.D.
Inner I.D.
Damper
.885 .875
1.126 1.060 .875 .855 .875
.814 .768 .860 .650 .635
N Y N N N
1.205 1.190
Some items are not legal for sale or use on any pollution controlled motor vehicle
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Fax: 1300 350 454
Web: www.fabre.com.au
Email: info@fabre.com.au