Engines & Engine Parts at Summit Racing

Cylinder Works 4-Stroke Cylinder Heads for 2004-2005 KX250F, 2004-2006 RMZ250 - 422-3002HD

Top End Engine Kit REPLACEMENT CYLINDER REPLACEMENT CYLINDER HEAD ONLY

Part Number: CLW-CH3002-K01

Not Yet Reviewed

Estimated Ship Date: Apr 13, 2026 if ordered today

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Estimated Ship Date: Apr 13, 2026 if ordered today

Clevite H-Series Main Bearings MS-981H

Main Bearings, H Series, Full Groove, Standard Size, Tri Metal, Ford, 351M, 351W, 400, Set of 5

Part Number: CLE-MS981H

2.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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BTR Beehive Valve Springs SP005-16

Valve Springs, Beehive, Single, 0.550 in. Maximum Valve Lift, 317 lbs./in. Spring Rate, 1.070 in. Coil Bind Height, Set of 16

Part Number: BTC-SP00516

Not Yet Reviewed

Estimated Ship Date: Apr 2, 2026 if ordered today

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Estimated Ship Date: Apr 2, 2026 if ordered today

Milodon Street Stainless Valves 45605-8

Valves, Intake, Stainless Steel, 2.02 in. Diameter, Chevy, Small Block, 350, 383, 400, Set of 8

Part Number: MIL-45605-8

5.0 out of 5 stars ( 2 )

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Cylinder Works 4-Stroke Cylinder Heads for 2004-2007 CRF250R, 2004-2006 CRF250X - 422-1003HD

Cylinder Head, Bare, Aluminum, Natural, for use on Honda®, Each

Part Number: CLW-CH1003-K01

Not Yet Reviewed

Estimated Ship Date: Apr 10, 2026 if ordered today

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Estimated Ship Date: Apr 10, 2026 if ordered today

ARP High Performance Series Rocker Arm Studs 135-7122

ARP High Performance Series Rocker Arm Studs 135-7122

Rocker Arm Stud Kit, High Performance, Mark V, Pair

Part Number: ARP-135-7122

5.0 out of 5 stars ( 2 )

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Clevite H-Series Main Bearings MS-909H-21

MAIN BEARING SET

Part Number: CLE-MS909H21

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Scat Harmonic Balancer Crankshaft Spacers 4-CLEVE-SPACER

Damper Spacer, Crank Snout, 351C, Steel, Each

Part Number: SCA-4-CS

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Milodon Street Stainless Valves 45695-8

Valves, Exhaust, Stainless Steel, 1.71 in. Diameter, Olds, 350-400-455, Set of 8

Part Number: MIL-45695-8

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Clevite H-Series Main Bearings MS-829H-21

MAIN BEARING SET

Part Number: CLE-MS829H21

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Trick Flow® PowerPort® 320 Cylinder Heads for Big Block Chevrolet TFS-4141T803-M22

Cylinder Head, PowerPort® 320, Aluminum, Assembled, 122cc Chamber, 320cc Intake, Chevy, Big Block, Each

Part Number: TFS-4141T803-M22

Not Yet Reviewed

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Chevrolet Performance Bowtie Aluminum Cylinder Heads 19418910

Cylinder Head, Bowtie, Oval-Port, Aluminum, Assembled, 113cc Chamber, 290cc Intake, Chevrolet, Big Block, Each

Part Number: NAL-19418910

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COMP Cams Valve Spring Locators 4682-16

Valve Spring Locator, Inside Locating Shoulder, Steel, 0.060 in. Thick, 1.300 in. O.D., 0.570 in. I.D., 0.650 in. Spring I.D., Set of 16

Part Number: CCA-4682-16

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COMP Cams Valve Spring Locators 4640-16

Valve Spring Locators, Inside, Steel, 0.570 in. I.D., 1.600 in. O.D., Set of 16

Part Number: CCA-4640-16

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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COMP Cams Valve Spring Locators 4774-16

Valve Spring Locator, Inside Locating Shoulder, Steel, 0.060 in. Thick, 1.625 in. O.D., 0.570 in. I.D., 0.765 in. Spring I.D., Set of 16

Part Number: CCA-4774-16

5.0 out of 5 stars ( 1 )

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AFR Rocker Arm Studs 6409-1

Rocker Arm Studs, 7/16-14 in. Base Thread, 7/16-20 in. Rocker Arm Nut Size, 1.00 in. Nut Length, 1.895 in. Overall Length, Each

Part Number: AFR-6409-1

Not Yet Reviewed

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COMP Cams Hi-Tech 210 Degree Pushrods 8548-1

Pushrods, Hi-Tech, 210 degree, Chromoly, Ball Tips, 3/8 in. Tube Diameter, 9.300 in. Length, Each

Part Number: CCA-8548-1

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Oliver Big Block Max Series Connecting Rods C6700BBMX8

Connecting Rods, Big Block Max Series, Forged 4340 Steel I-Beam, 12-Point, Cap Screw, 6.700 in. Long, Chevy, Big Block, Set of 8

Part Number: OLV-C6700BBMX8

5.0 out of 5 stars ( 1 )

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Mahle Original Premium Piston Ring Sets 42108CP

Piston Rings, Premium Piston Ring Sets, Plasma-moly, 3.920 in. Bore, 1.2mm, 1.2mm, 2.0mm Thickness, V8, Set

Part Number: MAH-42108CP

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Scorpion Race Series Rocker Arms SCP1212

ROCKER ARMS 1.6 SBC V-8 AFR 227, 235-245cc, DART Pro 1 180-230cc & Dart Iron Eagle 165-230cc, Dart SHP 180-220cc, Brodix Track I 215-245cc 3/8 .050 Of

Part Number: SCC-1212

Not Yet Reviewed

Estimated Ship Date: Apr 20, 2026 if ordered today

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Estimated Ship Date: Apr 20, 2026 if ordered today

COMP Cams XD-A Pushrods 896805-16

Pushrods, XD-A, Chromoly, 5/16 in. Diameter, Ball Tips, Adjustable From 7.320 in. To 7.552 in. Length, Chevrolet, Small Block LS, Set of 16

Part Number: CCA-896805-16

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Howards Cams Race Series Vertical Bar Hydraulic Roller Lifters 91162-1

Lifters, Race Series, Hydraulic Roller, Vertical Bar, Chevy, Big Block, Each

Part Number: HRS-91162-1

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

ATK High Performance 315cc BBC Aluminum Cylinder Heads HPBBC315

Cylinder Head, 315cc BBC, Aluminum, 120cc Chamber, 315cc Runner, 2.250 in. Intake Valve, 1.880 in. Exhaust Valve, 0.675 in. Max Lift, Chevy, Each

Part Number: HPE-HPBBC315

Not Yet Reviewed

Estimated Ship Date: Jun 15, 2026 if ordered today

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Estimated Ship Date: Jun 15, 2026 if ordered today

Need It Sooner? We recommend these similar substitute parts:

AFR 335cc Enforcer BBC Cylinder Heads 3002

5 out of 5 stars ( 1 )

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Edelbrock Performer RPM Bare NHRA Stock/Super Stock Cylinder Heads 60947

Cylinder Head, Performer RPM NHRA-Accepted Stock/Super Stock, Bare, 64cc Chamber, Chevy, Small Block, Each

Part Number: EDL-60947

Not Yet Reviewed

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Scorpion Race Series Rocker Arms SCP1018-1

Rocker Arms, Race Series, Ford 289-351W, Full Roller, 1.6 Ratio, 7/16 in. stud, Each

Part Number: SCC-SCP1018-1

3.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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