Racing Valve Springs Engineered for racing use, springs are precisely coiled and heat-treated. Sold in sets of 16.
Seat Pressure
7° Retainer
10° Retainer
Part No.
Description
O.D.
I.D.
Open Pressure Rate Coil Bind
Performance Valve Springs HRC98212 Single With Damper 1.265" .875" 115@1.780" 340@1.250" 425 1.150" HRC97112 HRC97132 HRC98213 Single With Damper 1.265" .878" 120@1.800" 375@1.250" 464 1.100" HRC97112 HRC97132 HRC98214 Single With Damper 1.250" .870" 115@1.700" 300@1.250" 411 1.160" HRC97112 HRC97132 Max Effort Valve Springs HRC98215 Single With Damper 1.265" .878" 120@1.800" 375@1.250" 460 1.100" HRC97112 HRC97132 Valve Spring Retainers Howard Cams manufactures 7° and 10° chrome moly and 10° titanium retainers, all packaged in sets of 16.
Dimensions
Lock Angle
Valve Stem
Valve Spring
Part No. D HRC97118 Chrome Moly 7° 11/32" 1.437"-1.450" S/D 1.440" 1.050" .700" — HRC97128 Chrome Moly 10° All 1.437"-1.450" S/D 1.435" 1.070" .700" — HRC97220 Titanium 10° All 1.550"-1.550" S/D 1.500" 1.105" .710" — Valve Locks Small Block Chevy Roller Lifters Set HRC91152 Description A B C
Howards Cams offers a variety of heat-treated, machined, and forged steel valve locks, in 7° or 10° versions. All valve locks listed are single-groove design. Sold in sets of 16 pair.
Designed for the entry-level sportsman racer. Built with high-grade materials, but priced with a budget racer in mind, these lifters start with 8620 heat-treated steel bodies. Black oxide-treated for «ÀÌiVÌ]Ì iÃivÌiÀÃ>ÀivÌÌi`ÜÌ Î£äÃÌiiÀiÀà and superior high-strength bearings. They are hand- assembled, checked, and packaged in the USA! Pro Lite Direct Lube Mechanical Roller Lifters Pro Lite lifters are exceptionally lightweight, up to 20 grams lighter than many competitors' light- weight lifters. Lifters are assembled using dura- Li]nÈÓäÃÌiiL`iÃ]ΣäÃÌiiÀiÀÃ]«ÀiVà sorted needle bearings, and stainless steel cross bars. Integrated high-pressure pin oilers offer improved durability. Sold in sets of 16. Part No. Description HRC91132 SB Chevy 265-400, +.300" Tall HRC91137 SB Chevy 265-400 Pro Max Direct Lube Mechanical Roller Lifters HRC91188 Engineered for small block 265-400 Chevy, +.300" tall applications, Pro Max lifters offer >VÌÕÕÃyÜvÌÌ iÀiÀLi>À} shafts, providing higher RPM and higher spring pressure capability. Lifters use lightweight, alloy steel bodies, case-hardened 8620 rollers, premium bearings, and heat-treated stainless steel link bars. Sold in set of 16. Billet Aluminum Roller Rocker Arms
Lash Cap Recess
Installed Height
Part No.
Type
Stem Size Lock Angle
HRC93005 HRC93010
Forged Forged
11/32" 11/32"
7° 7° 7°
No No No
Standard
+.050"
HRC93040 Heat Treated 11/32" HRC93075 Machined 11/32"
Standard Standard Standard
10° 10°
Yes Yes
HRC93080 Machined
3/8"
Rev Kits Engineered for roller cam engines, Howards rev kits increase valve train stability throughout the RPM range and keep the lifters in their bores if valve train components fail. Locator bars, springs, and lifter buttons are included. Part No. Description HRC90130 Ultimate-Duty Valve Seals HRC93311 Premium PC valve seals are manufactured vÀë>Vi>}iyÕÀ«ÞiÀ>`>Ài tolerant to pump gas, alcohol, or nitrometh- ane. Self-lubricating seals provide con- trolled radial tension, while allowing a very small amount of oil for valve guide and stem lubrication. Sold in sets of 16. HRC90135
SB Chevy 265-400, Flat Top Lifter Applications SB Chevy 265-400, Cutaway Style Lifter Applications, 5/16" Pushrods Only
CNC-machined aluminum roller rockers will withstand over 800+ pounds of valve spring pressure and over .800" valve lift. ,ViÀ>ÀÃ>Ài«ÕÀ«i>`âi`]ÜÌ needle-bearing fulcrums and roller tips, centerless ground trunnions, and thick- walled adjusting nuts. Sets of 16. Part No. Application Stud
Guide I.D.
Valve I.D.
Overall Height
Guide Contact
Description
O.D.
11/32" x .500" Guide
.494" .337" .630" .460" .120"
Ratio 1.50 1.50 1.60
HRC90070 HRC90072 HRC90073
SB Chevy 265-400 SB Chevy 265-400 SB Chevy 265-400
3/8"
7/16" 7/16"
204 2019 OPEN WHEEL PARTS AND ACCESSORIES
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