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 HRC98213 Single With Damper HRC98214 Single With Damper Max Effort Valve Springs HRC98215 Single With Damper
1.265" .875" 115@1.780" 340@1.250" 425 1.150" HRC97112 HRC97132 1.265" .878" 120@1.800" 375@1.250" 464 1.100" HRC97112 HRC97132 1.250" .870" 115@1.700" 300@1.250" 411 1.160" HRC97112 HRC97132
1.265" .878" 120@1.800" 375@1.250" 460 1.100" HRC97112 HRC97132
Direct Lube Hydraulic Lifters HRC91116 Offered for Chevrolet V-8 only, lifters are engineered VSHFL¿FDOO\IRUXVHZLWKUDFLQJFDPVKDIWVIHDWXU - ing aggressive opening and closing rates. Lift- ers deliver a constant supply of oil to the cam lobes, reducing lobe wear. Sold in set of 16.
Pro Lite Direct Lube Mechanical Roller Lifters
Pro Lite lifters are exceptionally lightweight, up to 20 grams lighter than many competitor’s lightweight lifters. Lifters are assembled using durable 8620 steel bodies, 9310 steel rollers, precision-sorted needle bearings, and stainless steel cross bars. Incorporated high-pressure pin oilers offer improved durability. Sold in sets of 16. Part No. Description HRC91137 SB Chevy 265-400 HRC91132 SB Chevy 265-400, +.300" Tall Pro Max Direct Lube Mechanical Roller Lifters HRC91188 Engineered for small block 265-400 Chevy, +.300" tall applications, Pro Max lift- HUVRIIHUDFRQWLQXRXVÀRZRIRLOWRWKHUROOHU bearing shafts, providing higher RPM and higher spring pressure capability. Lifters use lightweight, alloy-steel bodies, case hard- ened 8620 rollers, premium bearings, and heat-treated stainless steel link bars. Sold in set of 16. Small Block Chevy Mechanical Roller Lifters HRC91152
Street Series Retro-Fit Hydraulic Roller Lifters HRC91166
Designed for popular GM Gen. III LS appli- cations, lifters are assembled using cold- formed bodies that have been nitride-coated and tempered for hardness, hardened and
tempered roller wheels, and high-alloy steel tie bar buttons. Engineered for applications up to 6500 RPM. Sold in set of 16. “The Original” Direct Lube Solid Lifters
Lifters have an EDM-machined hole in the bottom of the lifter which delivers a FRQVWDQWÀRZRIRLOWRWKHFDPOREHIRU reduced lobe wear and added durability, particularly when higher valve spring pres- sures are employed. Sold in sets of 16. Part No.
Engineered for the sportsman racer, these lifters are manufactured in the USA using 8620 heat-treated steel bodies, 9130 steel rollers, and maximum strength bearings. Direct lube pin oilers offer added durability. %ODFNR[LGH¿QLVKHGIRUFRUURVLRQSURWHF - tion. Lifter body diameter: .842, lifter body height: +.300. Sold in sets of 16. Ultimate Duty Valve Seals Premium PC valve seals are manu- IDFWXUHGIURPVSDFHDJHÀXRURSRO\PHU and are tolerant to pump gas, alcohol, or nitromethane. Self-lubricating seals provide controlled radial tension, while allowing a very small amount of oil for valve guide and stem lubrication. Sold in sets of 16.
Description Chevy V-8
HRC91118 HRC91218
Ford 221-351W, 351C
Track Smart 4340 Forged Steel Crankshafts Computer designed, “Track Smart” 4340 forged crank- shafts are constructed using
precisely placed counterweights for improved balance and reduced bearing loads. All rod journals are drilled
DQGFRXQWHUZHLJKWVSUR¿OHGIRUSLVWRQFOHDUDQFH All journals include a large, .125” radii and require chamfered bearings. Crankshafts are additionally hard- ened with a deep nitride for increased wear resistance.
Rod Length
Part No.
Description
Main Stroke
HRCH353485712T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 3.480" 5.700" HRCH353756012T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 3.750" 6.000" HRCH353876012T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 3.875" 6.000" HRCH354006012T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 4.000" 6.000" HRCH403756012T SB Chevy, Int. Bal., 2-Pc. Rear Main 400 3.750" 6.000" HRCH403876012T SB Chevy, Int. Bal., 2-Pc. Rear Main 400 3.875" 6.000" HRCH404006012T SB Chevy, Int. Bal., 2-Pc. Rear Main 400 4.000" 6.000"
Guide I.D.
Valve I.D.
Overall Height
Guide Contact
Part No.
Description
O.D.
HRC93311 11/32" x .500" Guide .494" .337" .630" .460" .120" HRC93311 11/32" x .531" Guide .524" .337" .630" .460" .120"
408 2019-20 CIRCLE TRACK PARTS AND ACCESSORIES
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