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25% Off Online Orders of Select Hard Parts. Enter Promo Code MMJ25 in Cart.

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Receive Up To 25% Off Your Online Purchase Of Select Parts And Accessories
Use promotional code MMJ25 at checkout to receive 25% off the following categories: Select Brake Parts, Select Hi-Performance and Truck Accessories, Batteries, Paint, Splash Guards, Select Ventvisors & Bug Shields, Springs & Spacers, Water Pumps, Belts, A/C Parts, Starters, Alternators, Fuel Pumps, Radiators, Radiator Fans, Thermostats, Caps & Clamps, Clutches, Spark Plugs, Plug Wires, CV Axles, Battery Chargers & Booster Cables, OE Locks, Rack & Pinons, Window Motors, RainX Wipers, Appearance Chemicals, Floor Mats, Lift Equipment, Hand Tools, Travel Accessories, Car Covers, Seat Covers, Wheel Covers, Body Repair, Collectibles and Apparel.

Use promotional code MMJ20 at checkout to receive 20% off the following categories: Ignition, Shocks & Struts, Chassis, Jumpstarts, Air Filters, Oil Filters, Bearings & Seals, Engine Parts, Wash Accessories,. Outdoor Lifestyle, Towing, Mini Air Compressors and Tire Repair Accessories.

Offers not valid in combination with any other discounts, promotions or items already on sale. Not valid on gift cards, special orders, installed merchandise, commercial or fleet purchases. Those products that are included in these offers will be displayed in product search results and product detail pages. Excludes the following brands: Champion, Powerstop, Razor, Traxxas, Superchips, Hypertech, Edge, Bully Dog, Diablo, Edelbrock, Holley, NOS, Proform, Specialty Auto, Autometer, Accel, K&N, Kenwood, Pioneer, Sony, Thule, Thule Karrite, JVC, Flowmaster, Hurst, B&M, MSD, Moog, Wagner, Philips and BBK Performance. Valid online until 11:59 PM EST on 10/29/17.

Receive 25% Off Wagner branded brake parts with your online purchase. Use promotional code: WAGNER25.

Receive 10% Off Select Champion, MOOG and FelPro branded products with your online purchase. Use promotional codes: CHAMP10, MOOG10 and/or FELPRO10.


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Cylinder Heads

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$24.99
$18.74
With Promotion
  • Part #: 100-1102|
  • SKU: 9965931

Available today after 6 p.m.


    • 3/8 - 16 Inch Thread Size; .750 Inch Length
    • Black Oxide; Chrome Moly; Set of 16
Retail
$24.99
$58.99
$44.24
With Promotion
  • Part #: 154-3601|
  • SKU: 9966103

Available today after 6 p.m.


    • Factory Heads/ Edelbrock Heads 60259/ 60379
    • Hex Style Head Type
Retail
$58.99
$89.99
$67.49
With Promotion
  • Part #: 135-3601|
  • SKU: 9966165

Available today after 6 p.m.


    • Hex Style Head Type
    • 180000 Pounds Per Square Inch Tensile Strength
Retail
$89.99
$90.99
$68.24
With Promotion
  • Part #: 134-3701|
  • SKU: 209999

Available today after 6 p.m.


    • For Use With 23 Degree OEM Cylinder Heads And Most Edelbrock/ LT-AFR/ Brodix -8; -10; -11; -11xb/ LT-1/ Dart Pro -1/ Trick Flow Heads/ Most World Products Heads
    • 12 Point Head Type
Retail
$90.99
$131.99
$98.99
With Promotion
  • Part #: 208-4301|
  • SKU: 9966008

Available today after 6 p.m.


    • 12 Point Nuts
    • Stud Is Placed Vertically In Special Racks And Precisely Heat Treated To 200,000 PSI
Retail
$131.99
$156.99
$117.74
With Promotion
  • Part #: 208-4601|
  • SKU: 9965962

Available today after 6 p.m.


    • 12 Point Nuts w/Under Cut Studs
    • Stud Is Placed Vertically In Special Racks And Precisely Heat Treated To 200,000 PSI
Retail
$156.99
$158.99
$119.24
With Promotion
  • Part #: 208-4306|
  • SKU: 9965979

Available today after 6 p.m.


    • 12 Point Nuts w/Under Cut Studs
    • Stud Is Placed Vertically In Special Racks And Precisely Heat Treated To 200,000 PSI
Retail
$158.99
$167.99
$125.99
With Promotion
  • Part #: 208-4302|
  • SKU: 9965993

Available today after 6 p.m.


    • 12 Point Nuts w/Under Cut Studs
    • Stud Is Placed Vertically In Special Racks And Precisely Heat Treated To 200,000 PSI
Retail
$167.99
$199.99
$149.99
With Promotion
  • Part #: 134-4001|
  • SKU: 9965731

Available today after 6 p.m.


    • 23 Degree OEM Cast Iron and Aluminum Heads
    • Hex Style Type Nuts
Retail
$199.99
$545.99
$409.49
With Promotion
  • Part #: 250-4202|
  • SKU: 9966365

Available today after 6 p.m.


    • Chrome Moly ARP2000
    • Stud Is Placed Vertically In Special Racks And Precisely Heat Treated To 220,000 PSI
Retail
$545.99
$11.02
  • Part #: 9710|
  • SKU: 20034538

Available


    • Valve Seats
    • Performer Series
Retail
$11.02
$13.76
  • Part #: 9712|
  • SKU: 20034541

Available


    • Valve Seats
    • Performer Series
Retail
$13.76
$14.26
  • Part #: 9704|
  • SKU: 20034531

Available


    • Phosphor-bronze guides
    • Sold indIVidually
Retail
$14.26
$14.27
  • Part #: 9709|
  • SKU: 20034539

Available


    • Valve Seats
    • Performer Series
Retail
$14.27
$14.28
  • Part #: 9716|
  • SKU: 20034545

Available


    • Enhance your vehicle
    • Rigorously tested
Retail
$14.28
$14.39
  • Part #: 9702|
  • SKU: 20034529

Available


    • Phosphor-bronze guides
    • Sold indIVidually
Retail
$14.39
$21.02
  • Part #: 93776|
  • SKU: 20034492

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$21.02
$24.99
  • Part #: 66778|
  • SKU: 20058993

Available


    • T-Handles. This simple T-handle and wrench set makes adjustment very easy, cutting the adjusting time in half.
    • Simply position the adjusting handle wrench over the rocker arm lock-down (make sure you have purchased the set with the proper sized wrench), and drop the appropriate T-handle down through the hole in the wrench - with one hand doing the job of two!
Retail
$24.99
$24.99
  • Part #: 66779|
  • SKU: 20058994

Available


    • T-Handles. This simple T-handle and wrench set makes adjustment very easy, cutting the adjusting time in half.
    • Simply position the adjusting handle wrench over the rocker arm lock-down (make sure you have purchased the set with the proper sized wrench), and drop the appropriate T-handle down through the hole in the wrench - with one hand doing the job of two!
Retail
$24.99
$24.99
  • Part #: 66780|
  • SKU: 20058995

Available


    • T-Handles. This simple T-handle and wrench set makes adjustment very easy, cutting the adjusting time in half.
    • Simply position the adjusting handle wrench over the rocker arm lock-down (make sure you have purchased the set with the proper sized wrench), and drop the appropriate T-handle down through the hole in the wrench - with one hand doing the job of two!
Retail
$24.99
$24.99
  • Part #: 66781|
  • SKU: 20058996

Available


    • This simple T-handle and wrench set makes adjustment very easy, cutting the adjusting time in half.
    • Simply position the adjusting handle wrench over the rocker arm lock-down (make sure you have purchased the set with the proper sized wrench), and drop the appropriate T-handle down through the hole in the wrench - with one hand doing the job of two!
Retail
$24.99
$25.26
  • Part #: 93782|
  • SKU: 20034495

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$25.26
$26.37
  • Part #: 93780|
  • SKU: 20034494

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$26.37
$26.47
  • Part #: 93661|
  • SKU: 20034479

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$26.47
$26.48
  • Part #: 93774|
  • SKU: 20034490

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$26.48
$29.77
  • Part #: 9758|
  • SKU: 20034578

Available


    • 2 ring positive oil center seals
    • Made from high temperature material
Retail
$29.77
$35.92
  • Part #: 9759|
  • SKU: 20034579

Available


    • 2 ring positive oil center seals
    • Made from high temperature material
Retail
$35.92
$45.08
  • Part #: 9616|
  • SKU: 20034505

Available


    • Heat-Treated Machined 7 Deg.
    • Black Oxide
Retail
$45.08
$47.41
  • Part #: 9789|
  • SKU: 20034607

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$47.41
$50.57
  • Part #: 9615|
  • SKU: 20034504

Available


    • Heat-Treated Machined 7 Deg.
    • Black Oxide
Retail
$50.57
$51.48
  • Part #: 9711|
  • SKU: 20034540

Available


    • Eliminates Chassis Bounce At High Speed
    • Allows For Height Adjustment From Stock To 2 in.
Retail
$51.48
$57.99
  • Part #: 9606|
  • SKU: 20034500

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$57.99
$58.39
  • Part #: 9729|
  • SKU: 20034554

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$58.39
$60.70
  • Part #: 9736|
  • SKU: 20034558

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$60.70
$64.02
  • Part #: 9720|
  • SKU: 20034549

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$64.02
$65.11
  • Part #: 9734|
  • SKU: 20086048

Available


    • For use oe cast iron heads
    • Superior quality heat-treated steel
Retail
$65.11
$66.20
  • Part #: 9721|
  • SKU: 20034550

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$66.20
$66.41
  • Part #: 9741|
  • SKU: 20034564

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$66.41
$66.51
  • Part #: 9602|
  • SKU: 20034498

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$66.51
$68.37
  • Part #: 9730|
  • SKU: 20034555

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$68.37
$68.37
  • Part #: 9715|
  • SKU: 20034544

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$68.37
$69.46
  • Part #: 9724|
  • SKU: 20034551

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$69.46
$72.55
  • Part #: 9657|
  • SKU: 20034517

Available


    • Heat Treated Machined Valve Stem Locks
    • For Use With Edelbrock Retainers
Retail
$72.55
$84.51
  • Part #: 93669|
  • SKU: 20034475

Available


    • High-Grade Alloy Steel
    • Hardened To 60 Rockwell C
Retail
$84.51
$93.81
  • Part #: 9733|
  • SKU: 20034556

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$93.81
$93.81
  • Part #: 9731|
  • SKU: 20034557

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$93.81
$110.25
  • Part #: 93783|
  • SKU: 20034497

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$110.25
$122.02
  • Part #: 93781|
  • SKU: 20034496

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$122.02
$128.94
  • Part #: 9633|
  • SKU: 20034506

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$128.94
$129.75
  • Part #: 9630|
  • SKU: 20086034

Available


    • Case-hardened tubing
    • Surface hardening
Retail
$129.75
$130.03
  • Part #: 9705|
  • SKU: 20034534

Available


    • Hydraulic flat tappet
    • Designed for use with Edelbrock performer-plus
Retail
$130.03
$132.27
  • Part #: 93777|
  • SKU: 20034493

Available


    • Swirl-Polished
    • Hardened Tip Stainless Steel Valves
Retail
$132.27
$135.04
  • Part #: 9636|
  • SKU: 20034508

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$135.04
$135.07
  • Part #: 9659|
  • SKU: 20034519

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$135.07
$139.57
  • Part #: 9646|
  • SKU: 20086038

Available


    • Case-hardened tubing
    • Surface hardening
Retail
$139.57
$141.37
  • Part #: 9658|
  • SKU: 20034518

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$141.37
$142.32
  • Part #: 9655|
  • SKU: 20034516

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$142.32
$142.34
  • Part #: 9637|
  • SKU: 20086035

Available


    • Case-hardened tubing
    • Surface hardening
Retail
$142.34
$143.12
  • Part #: 9632|
  • SKU: 20086033

Available


    • Case-hardened tubing
    • Surface hardening
Retail
$143.12
$147.52
  • Part #: 9707|
  • SKU: 20034536

Available


    • Valve Spring Retainers for Use OE Cast Iron Heads
    • Superior Quality Heat-Treated Steel
Retail
$147.52
$150.22
  • Part #: 9656|
  • SKU: 20086041

Available


    • Case-hardened tubing
    • Surface hardening
Retail
$150.22
$182.26
  • Part #: 9638|
  • SKU: 20034509

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$182.26
$189.30
  • Part #: 9635|
  • SKU: 20034507

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$189.30
$193.15
  • Part #: 9647|
  • SKU: 20034513

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$193.15
$201.57
  • Part #: 9648|
  • SKU: 20034514

Available


    • Case-Hardened Tubing
    • Surface Hardening
Retail
$201.57
$221.13
  • Part #: 9654|
  • SKU: 20086040

Available


    • Case-hardened tubing
    • Surface hardening
Retail
$221.13
$239.43
  • Part #: 9708|
  • SKU: 20034537

Available


    • Valve Spring Retainers For Use w/PN(5768) Springs
    • Superior Quality Heat-Treated Steel
Retail
$239.43
$454.60
  • Part #: 2853|
  • SKU: 20031875

Available


    • Retains stock water passage connections
    • Aluminum
Retail
$454.60
$523.73
  • Part #: 60059|
  • SKU: 20032388

Available


    • Out-of-the-Box Bolt-On Performance
    • Valves Promote Excellent Flow For Streetable Power
Retail
$523.73
$544.68
  • Part #: 60057|
  • SKU: 20032386

Available


    • Out-of-the-Box Bolt-On Performance
    • Valves Promote Excellent Flow For Streetable Power
Retail
$544.68
$545.27
  • Part #: 60058|
  • SKU: 20032387

Available


    • Out-of-the-Box Bolt-On Performance
    • Valves Promote Excellent Flow For Streetable Power
Retail
$545.27
$549.39
  • Part #: 77169|
  • SKU: 20034203

Available


    • Ready To Bolt On; Out-Of-The-Box
    • Affordable; Top Quality
Retail
$549.39
$562.56
  • Part #: 77389|
  • SKU: 20034215

Available


    • Ready To Bolt On; Out-Of-The-Box
    • Affordable; Top Quality
Retail
$562.56
$563.59
  • Part #: 61857|
  • SKU: 20032767

Available


    • Undersized As Cast Ports For Custom CNC
    • Manganese-Bronze Guides
Retail
$563.59
$571.71
  • Part #: 60849|
  • SKU: 20032483

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$571.71
$576.73
  • Part #: 77219|
  • SKU: 20034207

Available


    • Designed For Ultra High Performance
    • Designed For Large Displacement Small Block Fords
Retail
$576.73
$581.20
  • Part #: 60549|
  • SKU: 20032443

Available


    • Out-of-the-Box Bolt-On Performance
    • Hand-Blended Intake and Exhaust Bowls
Retail
$581.20
$581.52
  • Part #: 60449|
  • SKU: 20032428

Available


    • Out-of-the-Box Bolt-On Performance
    • Designed For Street/High Performance Big Blocks
Retail
$581.52
$582.32
  • Part #: 60959|
  • SKU: 20032496

Available


    • 170cc Intake 64cc Chamber for Vortec-Style Intake
    • 20 Prct Inc Flow Over Cast-Iron Vortec Heads
Retail
$582.32
$583.50
  • Part #: 60389|
  • SKU: 20032423

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$583.50
$588.94
  • Part #: 60087|
  • SKU: 20070187

Available


    • NHRA And Super Stock Legal
    • NHRA Logo On Both Ends
Retail
$588.94
$593.55
  • Part #: 60217|
  • SKU: 20032404

Available


    • Out-of-the-Box Bolt-On Performance
    • Maximum Performance From Idle through Mid-Range
Retail
$593.55
$623.21
  • Part #: 61859|
  • SKU: 20032768

Available


    • Undersized As Cast Ports For Custom CNC
    • Manganese-Bronze Guides
Retail
$623.21
$654.23
  • Part #: 60985|
  • SKU: 20032503

Available


    • Out-of-the-Box Bolt-On Performance
    • Hand-Blended Intake and Exhaust Bowls
Retail
$654.23
$671.67
  • Part #: 60319|
  • SKU: 20032416

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$671.67
$672.00
  • Part #: 60367|
  • SKU: 20032420

Available


    • Out-of-the-Box Bolt-On Performance
    • Valves Promote Excellent Flow For Streetable Power
Retail
$672.00
$703.21
  • Part #: 608979|
  • SKU: 20032491

Available


    • Designed Exclusively For SCCA
    • Manufactured From A356 Aluminum
Retail
$703.21
$725.33
  • Part #: 60767|
  • SKU: 20032473

Available


    • Fully CNCd Combustion Chambers
    • Partially CNCd Runners For Improved Flow
Retail
$725.33
$738.63
  • Part #: 60975|
  • SKU: 20032500

Available


    • Out-of-the-Box Bolt-On Performance
    • Hand-Blended Intake and Exhaust Bowls
Retail
$738.63
$738.76
  • Part #: 60979|
  • SKU: 20070222

Available


    • 170cc Intake 64cc Chamber for Vortec-Style Intake
    • 20 Prct Inc Flow Over Cast-Iron Vortec Heads
Retail
$738.76
$753.24
  • Part #: 61767|
  • SKU: 20032761

Available


    • Produces Out-of-the-Box Bolt-On Performance
    • Stock Magnum Intake/Exhaust Flange/Port Locations
Retail
$753.24
$760.55
  • Part #: 60489|
  • SKU: 20032434

Available


    • Bare 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$760.55
$770.87
  • Part #: 60759|
  • SKU: 20070211

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$770.87
$776.73
  • Part #: 60909|
  • SKU: 20070219

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$776.73
$785.80
  • Part #: 60255|
  • SKU: 20032411

Available


    • Out-of-the-Box Bolt-On Performance
    • Valves Promote Excellent Flow For Streetable Power
Retail
$785.80
$792.82
  • Part #: 61989|
  • SKU: 20032774

Available


    • For Professional Cylinder Head Porter
    • 38cc Chamber Size
Retail
$792.82
$794.65
  • Part #: 61905|
  • SKU: 20032769

Available


    • Complete 50-State Street Legal Alum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$794.65
$796.17
  • Part #: 60107|
  • SKU: 20032394

Available


    • Fully CNCd Combustion Chambers
    • Partially CNCd Runners For Improved Flow
Retail
$796.17
$807.80
  • Part #: 60225|
  • SKU: 20032407

Available


    • Out-of-the-Box Bolt-On Performance
    • Valves Promote Excellent Flow For Streetable Power
Retail
$807.80
$810.05
  • Part #: 60359|
  • SKU: 20070198

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$810.05
$812.28
  • Part #: 60879|
  • SKU: 20070215

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$812.28
$812.60
  • Part #: 60859|
  • SKU: 20070214

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • CenterBolt
Retail
$812.60
$818.84
  • Part #: 60587|
  • SKU: 20032450

Available


    • Out-of-the-Box Bolt-On Performance
    • Valves Promote Excellent Flow For Streetable Power
Retail
$818.84
$819.64
  • Part #: 60329|
  • SKU: 20070197

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$819.64
$830.83
  • Part #: 60399|
  • SKU: 20070200

Available


    • 50-State Street Legal Aluminum Cylinder Head
    • Out-of-the-Box Bolt-On Performance
Retail
$830.83
$837.59
  • Part #: 60037|
  • SKU: 20032383

Available


    • Out-of-the-Box Bolt-On Performance
    • 68cc Combustion Chambers
Retail
$837.59
$882.29
  • Part #: 60697|
  • SKU: 20032465

Available


    • Out-of-the-Box Bolt-On Performance
    • Hand-Blended Intake and Exhaust Bowls
Retail
$882.29
$883.31
  • Part #: 60687|
  • SKU: 20032463

Available


    • Fully CNCd Combustion Chambers
    • Partially CNCd Runners For Improved Flow