Page 199 - 2018 Racecar Engineering Open Wheel Parts and Accessories Catalog

Racing Valve Springs
Engineered for racing use, springs are precisely coiled and undergo heat treating. Sold in sets of 16.
Seat 7° 10°
Part No. Description O.D. I.D. Pressure Open Pressure Rate Coil Bind Retainer Retainer
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.
Lock Valve Valve Dimensions
Part No. Description Angle Stem Spring A B C 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" —

Small Block Chevy Roller Lifters Set Valve Locks
HRC91152 /V^HYKZ *HTZ VɈLYZ H ]HYPL[` VM OLH[ [YLH[LK
Designed for the entry level sportsman racer. Built machined and forged steel valve locks, in 7° or 10°
with high grade materials. Priced with a budget racer versions. All valve locks listed are single groove design.
Sold in sets of 16 pair.
in mind. These lifters start with 8620 heat-treated
steel bodies. Black oxided for protection. They are fitted with Part No. Type Stem Size Lock Angle Lash Cap Installed
Height
Recess
9310 steel rollers and superior high strength bearings. Carefully HRC93005 Forged 11/32" 7° No Standard
HZZLTISLK I` OHUK HUK JOLJRLK MVY MP[ WYPVY [V WHJRHNPUN 4HKL HRC93010 Forged 11/32" 7° No +.050"
in the USA!
HRC93040 Heat Treated 11/32" 7° No Standard
HRC93075 Machined 11/32" 10° Yes Standard
Pro Lite Direct Lube Mechanical Roller Lifters HRC93080 Machined 3/8" 10° Yes Standard
Pro Lite lifters are exceptionally lightweight, up to 20
grams lighter than many competitor’s lightweight lift- Rev Kits
ers. Lifters are assembled using durable, 8620 steel Engineered for roller
bodies, 9310 steel rollers, precision sorted needle cam engines, Howards
bearings and stainless steel cross bars. Incorporated rev kits increase valve train
OPNO WYLZZ\YL WPU VPSLYZ VɈLY PTWYV]LK K\YHIPSP[` :VSK Z[HIPSP[` [OYV\NOV\[ [OL 974
in sets of 16. range and keep the lifters in bores if valve
Part No. Description train component fails. Locator bars, springs
HRC91137 SB Chevy 265-400 and lifter buttons are included.
HRC91132 SB Chevy 265-400, +.300" Tall Part No. Description
HRC90130 SB Chevy 265-400, Flat Top Lifter Applications
Pro Max Direct Lube HRC90135 SB Chevy 265-400,
Cutaway Style Lifter Applications, 5/16" Pushrods Only
Mechanical Roller Lifters HRC91188
Engineered for small block 265-400 Chevy, Ultimate Duty Valve Seals
[HSS HWWSPJH[PVUZ 7YV 4H_ SPM[LYZ VɈLY H
JVU[PU\V\Z ÅV^ VM VPS [V [OL YVSSLY ILHYPUN ZOHM[Z Premium PC valve seals are manufactured
WYV]PKPUN OPNOLY 974 HUK OPNOLY ZWYPUN WYLZZ\YL JHWHIPSP[` 3PM[LYZ MYVT ZWHJL HNL Å\VYVWVS`TLY HUK HYL [VSLY-
use lightweight, alloy steel bodies, case hardened 8620 rollers, ant to pump gas, alcohol or nitromethane.
premium bearings and heat treated stainless steel link bars. Sold in Self-lubricating seals provide controlled radial
set of 16. tension, while allowing a very small amount of
oil for valve guide and stem lubrication. Sold in
sets of 16.
Billet Aluminum Roller Rocker Arms Guide Valve Overall Guide
CNC-machined aluminum roller rockers will Part No. Description I.D. I.D. O.D. Height Contact
withstand over 800+ pounds of valve spring HRC93311 11/32" x .500" Guide .494" .337" .630" .460" .120"
pressure and over .800" valve lift. Rocker HRC93316 11/32" x .531" Guide .524" .337" .630" .460" .120"
arms are purple anodized, with needle
bearing fulcrums and roller tips, centerless
ground trunnions and thick wall adjusting nuts. Sets of 16.
Part No. Application Stud Ratio
HRC90070 SB Chevy 265-400 3/8" 1.50
HRC90072 SB Chevy 265-400 7/16" 1.50
HRC90073 SB Chevy 265-400 7/16" 1.60

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