2021-22 Circle Track Catalog

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 Single with Damper Single with Damper

1.265" 1.265" 1.250" 1.265" 1.265” 1.265” 1.250” 1.445” 1.465” 1.485” 1.465" 1.514" 1.514" 1.514”

.875" .878" .870" .878" .876” .875” .870”

115@1.780" 120@1.800" 115@1.700" 120@1.800" 115 @ 1.780” 120 @ 1.800” 115 @ 1.700”

340@1.250" 375@1.250" 300@1.250" 375@1.250" 340 @ 1.250” 350 @ 1.200” 340 @ 1.250” 295 @ 1.175” 353 @ 1.100” 310 @ 1.250” 353 @ 1.100" 360 @ 1.300" 330 @ 1.300" 330 @ 1.300”

425 464 411 460 425 430 411 350 425 355 425 360 348 348

1.150" 1.100" 1.160" 1.100" 1.150” 1.100” 1.160” 1.100” .950” 1.150” .950" 1.150" 1.150" 1.150”

HRC97112 HRC97112 HRC97112

HRC97132 HRC97132 HRC97132

HRC98213 HRC98214

Max Effort Valve Springs HRC98215

Single with Damper

HRC97112

HRC97132

HRC98212-K12* Single w/Damper HRC98213RS Single w/Damper HRC98214-K11† Single w/Damper HRC98412-K11† Single w/Damper HRC98438-K12* Dual w/o Damper HRC98511-K31† Single w/Damper

— — — — — — — — — —

— — — — — — — — —

1.040” 120 @ 1.680”

.807”

122 @ 1.650”

1.061” 115 @ 1.800”

HRC98438-K12*

Dual w/Damper Dual w/o Damper Dual w/Damper

.807" .795" .697"

122 @ 1.650" 145 @ 1.900" 130 @ 1.875"

HRC98512

HRC98636-K32*

HRC98636-K11† Dual w/Damper — * Kit includes valve springs, 10° chrome moly retainers and valve locks. † Kit includes valve springs, 7° chrome moly retainers, and valve locks. Direct Lube Hydraulic Lifters HRC91116 1.125” 130 @ 1.875” Pro Lite Direct Lube Mechanical Roller Lifters

3UR/LWHOLIWHUVDUHH[FHSWLRQDOO\OLJKWZHLJKWXSWR 20 grams lighter than many competitor’s lightweight lifters. Lifters are assembled using durable 8620 steel ERGLHVVWHHOUROOHUVSUHFLVLRQVRUWHGQHHGOHEHDU - LQJVDQGVWDLQOHVVVWHHOFURVVEDUV,QFRUSRUDWHGKLJKSUHVVXUH 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 Racemax Vertical Bar Mechanical Roller Lifters NEW! HRC91134 FRQ¿JXUDWLRQ5DFHPD[OLIWHUVZKLFKLQFOXGHDWDOOHU GHVLJQDUH¿WZLWKGLDUROOHUEHDULQJVYHUWLFDOEDUVDQG weigh just 235 grams. Set of 16. Sport Max Chevy Mechanical Roller Lifters HRC91152 Engineered for the sportsman racer, these small EORFN&KHY\OLIWHUVDUHPDQXIDFWXUHGLQWKH86$ XVLQJKHDWWUHDWHGVWHHOERGLHVVWHHO UROOHUVDQGPD[LPXPVWUHQJWKEHDULQJV'LUHFW lube pin oilers offer added durability. Black oxide ¿QLVKHGIRUFRUURVLRQSURWHFWLRQ/LIWHUERG\GLDP - HWHUOLIWHUERG\KHLJKW6ROGLQVHWVRI Ultimate-Duty Valve Seals 'XUDEOHYHUWLFDOEDUPHFKDQLFDOUROOHU lifters are engineered for small block Chevy applications and feature a standard, centered 3UHPLXP3&YDOYHVHDOVDUHPDQXIDFWXUHG IURPVSDFHDJHÀXRURSRO\PHUDQGDUHWROHUDQW to pump gas, alcohol, or nitromethane. Self-lu- bricating seals provide controlled radial tension, while allowing a very small amount of oil for valve guide and stem lubrication. Sold in sets of 16.

Offered for Chevrolet V-8 only, lifters are engi- QHHUHGVSHFL¿FDOO\IRUXVHZLWKUDFLQJFDPVKDIWV featuring aggressive opening and closing rates. Lifters deliver a constant supply of oil to the cam lobes, reducing lobe wear. Sold in set of 16. Street Series Retro-Fit Hydraulic Roller Lifters HRC91166 'HVLJQHGIRUSRSXODU*0*HQ,,,/6DSSOLFD - tions, lifters are assembled using cold-formed bodies that have been nitride-coated and tem-

pered for hardness, hardened and tempered roller wheels, and high-alloy steel tie bar buttons. Engineered for applications up to 5306ROGLQVHWRI “The Original” Direct Lube Solid Lifters /LIWHUVKDYHDQ('0PDFKLQHGKROHLQWKH bottom of the lifter which delivers a constant ÀRZRIRLOWRWKHFDPOREHIRUUHGXFHGOREH wear and added durability, particularly when higher valve spring pressures are employed. Sold in sets of 16. Part No. Description HRC91118 Chevy V-8 HRC91218 Ford 221-351W, 351C Track Smart 4340 Forged Steel Crankshafts

Computer designed, “Track Smart” IRUJHGFUDQNVKDIWVDUHFRQ - structed using precisely placed coun- terweights for improved balance and reduced bearing loads. All rod journals

DUHGULOOHGDQGFRXQWHUZHLJKWVSUR¿OHGIRUSLVWRQ clearance. All journals include a large, .125” radii and require chamfered bearings. Crankshafts are additionally hardened with a deep nitride for increased wear resistance.

Rod Length

Part No.

Description

Main Stroke

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"

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"

427

CIRCLE TRACK 2021-22

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