Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Classic Truck Engines At Speedway Motors

Speedway Motors has high performance classic truck engine parts at everyday low prices. Whether you are building a Small Block Chevy or Ford Flathead, Speedway has you covered with thousands of parts in stock, ready to ship. With everything from pison sets to camshafts, Speedway can feed your need for speed! Complete classic pickup truck crate engines of multiple sizes, like Chevy 305, 350, 383 and others, are available at great prices! We also have a large selection of cylinder heads, crankshafts and roller rocker arms, so make Speedway your classic truck performance engine solution.

"Classic Truck, Camshaft and Valvetrain" Page 1 of 11

  • Speedway Flathead Ford Adjustable Lifters
    Speedway Flathead Ford Adjustable Lifters
    (Part #450F8502)
    x
                

    Upgrading your Flathead's valve train is the surest way to maintain performance and keep that old Ford V8 happy on modern fuel. Our adjustable lifters are the preferred way to maintain critical valve train tolerances while avoiding the hassle of grinding your valve seats for clearance. Simply set your valve lash using the adjustable set screw. These lifters will work with stock or performance camshafts, and are made in the USA.

    Fits 1932-53 Ford and Mercury Flathead V8s.

    • Self locking, adjustable set screw maintains critical valve lash
    • Works with stock or performance camshafts
    • High quality, precision manufactured
    • A must for today's Flathead engines

     

  • COMP Cams 41-602-7 Big Mutha Thumpr Cam, 1949-53 Flathead Ford
    COMP Cams 41-602-7 Big Mutha Thumpr Cam, 1949-53 Flathead Ford
    (Part #282416027)
    x
                

    These COMPomp Cams Thumpr cams will make your flathead wake up and sound nasty. They feature a long exhaust duration and other grind characteristics produce a powerful, hard-hitting exhaust note. For 1949-1953 Ford 8BA and 8CM Mercury flathead V8 engines. Lifters sold separately.

    Street/strip, needs 9.5:1 compression, 2800+ stall, intake, gears and headers. Very rough idle.

    Thumpr Cam Spec Chart (GIF)

  • COMP Cams 12-600-4 Thumpr Cam, Small Block Chevy, 2000-5800 RPM
    COMP Cams 12-600-4 Thumpr Cam, Small Block Chevy, 2000-5800 RPM
    (Part #282126004)
    x
                

    Have you ever been to the races and heard how nasty the cams sound? COMP Cams has developed the Thumpr series of cams that give you every day drivability, but have that nasty race engine sound. Pick the cam that fits your application, add a set of Comp Cams hydraulic lifters and you will be the talk of the town.

    High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle.

    Thumpr Application Chart (GIF)

    282-126004 Specs (PDF)

  • Trans-Dapt 4961 B/B Chevy Chrome Timing Tab for 8 Inch Balancer
    Trans-Dapt 4961 B/B Chevy Chrome Timing Tab for 8 Inch Balancer
    (Part #5504599)
    x
                These Trans-Dapt chrome finished steel timing tabs fit 1965-1990 Big Block Chevy 396-454 with 8" balancer.
            
  • COMP Cams CL12-211-2 S/B Chevy Magnum Cam & Lifter Kit, 1800-5800 RPM
    COMP Cams CL12-211-2 S/B Chevy Magnum Cam & Lifter Kit, 1800-5800 RPM
    (Part #282122112)
    x
                

    These COMP Cams camshaft and lifter kits are just the ticket whether it's for a daily driver or hot street machine. These "CL" kits include new camshaft, new hydraulic lifters and camshaft lube.

    High performance. Biggest cam with stock converter. Use lower gears. Mild rough idle.

    Application Chart (GIF)

    282-122112 Specs (PDF)

  • Rocker Arm Balls for 7/16 Inch Stud
    Rocker Arm Balls for 7/16 Inch Stud
    (Part #57583530)
    x
                Replacement rocker arm pivot balls with oil slots. Comes in a set of 16 for use with 7/16" rocker arm studs.
            
  • COMP Cams 48-601-5 Mutha Thumpr Cam, Chevy 348/409, 2200-6100 RPM
    COMP Cams 48-601-5 Mutha Thumpr Cam, Chevy 348/409, 2200-6100 RPM
    (Part #282486015)
    x
                

    These COMP Cams Thumpr cams will make your 1958-1965 Chevy 348 or 409 wake up and sound nasty. Thumpr cams have a long exhaust duration and other grind characteristics to produce a powerful, hard-hitting exhaust note. Lifters sold separately.

    High performance street/strip, needs 9:1 compression, 2500+ stall, intake, gears and headers. Rough idle.

    Thumpr Cam Spec Chart (GIF)

  • COMP Cams 19044-16 Ultra-Gold ARC Series Rocker Arms, Ford 7/16-1.6
    COMP Cams 19044-16 Ultra-Gold ARC Series Rocker Arms, Ford 7/16-1.6
    (Part #28219044)
    x
                Please view the product's page for more information
            
  • Speedway Small Block Ford Roller Rocker Arms, 1.6:1, 3/8 Stud
    Speedway Small Block Ford Roller Rocker Arms, 1.6:1, 3/8 Stud
    (Part #91511772)
    x
                

    These 302/351W Small Block Ford aluminum rocker arms are 100% CNC machined from the finest materials.

    Needle bearing fulcrum, centerless ground trunion and heat treated to the proper rating.

    Polylocks are included.

  • COMP Cams 750-16 Steel Valve Spring Retainers, 1.250 Inch OD, Set/16
    COMP Cams 750-16 Steel Valve Spring Retainers, 1.250 Inch OD, Set/16
    (Part #28275016)
    x
                Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. COMP Cams® Steel Retainers are the perfect solution to this problem. COMP ® engineers used 3D CAD with FEA to design retainers with a modern and advanced contoured top profiling for lower stress, increased lift and a reduction in mass. The retainers are CNC-machined to exact tolerances using CAD/CAM software. All COMP ® retainers use only high-grade SAE 4140 chromemoly steel with no lead, <0.04% sulfur and a black oxide finish to prevent corrosion. COMP Cams ® Steel Valve Spring Retainers offer both unmatched looks and superior performance that set the industry standard. 
    • Includes 16 Retainers
    • Super Lock™ Retainers
    • 10° Lock Angle - All Valve Stem Sizes - 1.250" Spring Diameter
    • 1.250 in. Outside Diameter
    • .735 in. Inside Diameter

     

  • COMP Cams 1631-16 Ultra Pro Magnum    Roller Rocker Arms, Ford 3/8 - 1.6
    COMP Cams 1631-16 Ultra Pro Magnum Roller Rocker Arms, Ford 3/8 - 1.6
    (Part #2821631)
    x
                Please view the product's page for more information
            
  • COMP Cams 741-16 Steel Retainers, 1.55 Inch, 10 Degree
    COMP Cams 741-16 Steel Retainers, 1.55 Inch, 10 Degree
    (Part #28274116)
    x
                

    Valve springs with larger diameters require retainers to handle the higher pressures developed by the springs. COMP Cams® Steel Retainers are the perfect solution to this problem. COMP® engineers used 3D CAD with FEA to design retainers with a modern and advanced contoured top profiling for lower stress, increased lift and a reduction in mass. The retainers are CNC-machined to exact tolerances using CAD/CAM software. All COMP® retainers use only high-grade SAE 4140 chromemoly steel with no lead, <0.04% sulfur and a black oxide finish to prevent corrosion. COMP Cams® Steel Valve Spring Retainers offer both unmatched looks and superior performance that set the industry standard.

    • Includes 16 Retainers
    • Super Lock™ Retainers
    • 10° Lock Angle - All Valve Stem Sizes - 1.500" -1.550" Spring Diameter
  • ALUM. ROCKERS-1.5x7/16" SBC
    $199.99
    ALUM. ROCKERS-1.5x7/16" SBC
    (Part #57533509)
    x
                

    BluMax aluminum roller rockers are built of the finest 6061 aluminum extrusions which gives you superior strength over other rockers. Rockers are specially machined to allow for larger 1.55" springs and retainers with full-cage friction reducing needle bearings for added durability. The nose rollers and shafts are Cr40 steel, heat-treated and hardened to minimize the wear that naturally occurs between the roller tip and the valve stem.

    • Designed to meet the demands of most high-lift roller camshaft profiles
    • Specially machined to accommodate larger valve springs and retainers
    • SAE-52100 Full complement precision needle and cage roller bearings
    • Anodized for a superior finish and to reduce operating temperatures
    • CNC machined pushrod cups and heat-treated Cr40 roller tips
    • Internal oiling system for long lasting performance
    • H.D. Polylocks included

     

  • Extra Long Slot Small Block Chevy Steel Rocker Arms, 1.6:1
    Extra Long Slot Small Block Chevy Steel Rocker Arms, 1.6:1
    (Part #28711802)
    x
                Extra long slot steel rocker arms for small block Chevy with high lift aftermarket camshaft. Higher 1.6:1 ratio provides more valve lift than stock 1.5:1 ratio arms. Balls and nuts not included. Set of 16.
            
  • 1932-1953 Flathead Ford V8 Single Valve Springs
    1932-1953 Flathead Ford V8 Single Valve Springs
    (Part #450185G)
    x
                

    Our complete line of valve train parts to help your flathead Ford V8 run on unleaded fuel. These heavy duty single valve springs are made from top-quality chrome silicon steel and are designed to work with stock 1932-1953 Ford retainers. 

    • Recommended for most street performance 1932-53 Ford/Mercury Flathead V8s
    • Chrome silicon material delivers reliable performance
    • Proper seat pressure for most street and street/strip Flathead cams
    • Installed Height:  2.00"
    • Seat Pressure:  85 lbs @ 2.00" installed height

    Note: "Full Race" cams should be paired with our 450-4005 dual valve springs.

    Flathead Valve Assembly (Link)

     

  • Flathead Lifter Wrench
    $12.99
    Product Rating: 4.25 Stars
    Flathead Lifter Wrench
    (Part #4508502-2)
    x
                

    Use this handy wrench to set your flathead's adjustable lifters.  For use with our 450-F8502 lifters.

  • COMP Cams 4512-16 Hi-Tech Race Rocker Studs, Big Block Chevy
    COMP Cams 4512-16 Hi-Tech Race Rocker Studs, Big Block Chevy
    (Part #282451216)
    x
                

    COMP Cams® takes pride in having the finest rocker arm studs available on the market. The High Energy™ and Magnum series studs work well in applications with moderate lifts and spring pressures and are available in the popular 3/8” and 7/16” sizes. When ultimate strength is required as with high rpm roller cam applications, the Hi-Tech™ Race Stud is the answer. This stud has a thin jam nut for rocker clearance, rolled threads for maximum contact and a ground-flat top so accurate valve adjustment can be achieved and maintained. The diameter of the jam nut is larger in order to spread the load over a larger area. All COMP Cams® studs have generous radii and a black oxide finish.

    • Set of 16
    • 7/16  Inch Diameter
    • Designed for ultimate strength and locking force
    • High Energy™ and Magnum polylocks are best for moderate lift and spring pressure applications
    • Hi-Tech™ Polylocks work well in all high end race applications
    • The stud girdle polylocks are precision ground for minimum runout and tapered for extra strength in the locking area
  • Manley Chevy 4130 Chromoly Pushrods, .250 Longer, 8.044 Inch
    Manley Chevy 4130 Chromoly Pushrods, .250 Longer, 8.044 Inch
    (Part #50525793)
    x
                

    Manley one-piece 4130 chromoly pushrods are rated to 128,000 psi. Features swedged end, .080" wall, and 5/16" diameter.

    • Heat treated
    • Black oxide finish  
    • For hydraulic or solid flat tappet cam engines with less than 400 lbs. open spring pressure and under 7500 rpm
    • Set of 16

    Pushrod Application Chart (GIF)

  • Chevy Front Timing Cover Chrome Bolt Kit
    Chevy Front Timing Cover Chrome Bolt Kit
    (Part #91303802)
    x
                Chevy front timing cover chrome bolt kit. 
            
  • Clay Smith Hydraulic Cam / Lifter Kit, 296/302 Small Block Chevy 400
    Clay Smith Hydraulic Cam / Lifter Kit, 296/302 Small Block Chevy 400
    (Part #1503104)
    x
                

    These camshaft / lifter kits are perfect for use with SBC 400 to 427 CID Air Flow Research 220-235 heads. Max power 6300 rpm, Peak torque 3500. This cam was designed for 1.6 ratio rockers to be used with the AFR heads. The increase lifter velocity maximizes the fill rate of these heads on large stroke engines from 3.75 to 4.00". The cam will maximize RAM Effect and fill cylinder for increase VE. Use of 1.750" on engines up to 412CID and 1.875" on engines over 412CID is highly recommended. We recommend a 3200 stall, a 850CFM carb, and a minimum of 10:1 compression.

    • Adv. - 296 / 302
    • .050" - 237 / 243
    • .100" - 206 / 212
    • .200" - 155 / 158
    • .300" - 96 / 92
    • Lift - .584 / .565
    • Centerlines - 104 / 112
    • Lobe Sep. - 108
    • Includes a set of tie-bar style hydraulic roller lifters
  • Clay Smith Hydraulic Cam / Lifter Kit, 296/300 Big Block Chevy 496
    Clay Smith Hydraulic Cam / Lifter Kit, 296/300 Big Block Chevy 496
    (Part #1603105)
    x
                

    These camshaft / lifter kits are perfect for use with BBC 477 to 496 with 4.25" stroke with Air Flow Research 290 or 305 heads to a max of 6000 rpm. Welcome to the brotherhood of 625HP on pump gas with over 640#/ft. This cam will produce over 600HP with a single plane and right at 600HP with an air-gap intake. Single plane will make 25 more HP and sacrifice 10#/ft. of torque. Carb of choice is a 950HP 4150. 2" headers are recommended. Be sure you have changed U-joints and upgraded rear gears. Muncie 4 speed, use at your own risk. Ok with power brakes. 900 RPM Idle.

    • Adv. - 296 / 300
    • .050" - 237 / 241
    • .200" - 154 / 151
    • Lift - .617 / .570
    • Centerlines - 103 / 111
    • Lobe Sep. - 107
    • Includes a set of tie-bar style hydraulic roller lifters
  • Hastings VA101 Isky Flathead Ford Valve Spring Shims
    Hastings VA101 Isky Flathead Ford Valve Spring Shims
    (Part #450404)
    x
                

    These Hastings valve spring shims are designed for use with our single valve springs (450185G).  These shims will help you achieve the correct installed height for your valve springs when rebuilding Flathead Ford engines.

    • 0.060" thick
    • Designed for use with 185G springs
    • Allows for correct valve spring height
    • Set of 16 shims
  • Clay Smith Hydraulic Roller Cam / Lifter, 284/286 Big Block Chevy 454
    Clay Smith Hydraulic Roller Cam / Lifter, 284/286 Big Block Chevy 454
    (Part #1603103)
    x
                

    These camshaft / lifter kits are perfect for use with BBC 454 to 470 CID with Air Flow Research 265 or 290 Oval Port heads to max of 6000 rpm. If you have built your teenage dream car and put AFR oval ports on it than there is no doubt this is the cam for you. We recommend a high rise dual plane with the center notched. An 850HP carb would be our choice with a good set of 13/4" headers. Don't worry about gear ratio, it will pull anything you put under it. Great with power brakes. Buy stock in tires. 750 RPM Idle.

    • Adv. - 284 / 286
    • .050" - 225 / 227
    • .200" - 137 / 136
    • Lift - .559 / .530
    • Centerlines - 103 / 111
    • Lobe Sep. - 107
    • Includes a set of tie-bar style hydraulic roller lifters
  • EngineQuest TC351A EQ 302-351W Ford Timing Cover
    EngineQuest TC351A EQ 302-351W Ford Timing Cover
    (Part #91017407)
    x
                

    Used ones are either cracked or corroded beyond use. These 100% new aluminum front timing covers have both fuel pump and dipstick provisions. Allows you to use mechanical fuel pump on later engines. Includes plug for dipstick hole if not required.

    Fits 1966-84 Ford 289/302/351W V-8 engines.

  • Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 7/16 Stud
    Speedway SBC Camshaft Break-In Roller Rocker Arms, 1.3:1, 7/16 Stud
    (Part #91511770)
    x
                

    Probably one of the best kept secrets...the best engine builders use break-in roller rocker arms. With the extreme valve spring pressures racers use today, the initial run time can kill a camshaft in the first minute of running.

    The big time engine builders use these 1.3 ratio rockers to allow a run-in time for the camshaft, then the 1.3 rockers are removed and the normal rockers are reinstalled and the engine is ready to race or dyno.

    Polylocks are included.

  • Clay Smith Small Block Chevy Torquesmith Hydraulic Camshaft/Lifter Kit
    Clay Smith Small Block Chevy Torquesmith Hydraulic Camshaft/Lifter Kit
    (Part #327012)
    x
                Please view the product's page for more information
            
  • Tall Poly Locks, 7/16 Stud, Set/16
    Tall Poly Locks, 7/16 Stud, Set/16
    (Part #91599804)
    x
                

    Tall poly locks for use with stud girdles. Each has a 0.755" O.D.

    Set of 16.

  • Speedway Racing Valve Springs, 1.26 Inch O.D., Set/16
    Speedway Racing Valve Springs, 1.26 Inch O.D., Set/16
    (Part #577810107)
    x
                

    Speedway racing valve springs offer an affordable alternative to the "big brand" valve springs. These quality springs are made in the U.S.A. and are guaranteed to perform.

    Valve Spring Spec Chart (GIF)

  • POLYLOCKS 3/8" 16 PER SET
    $39.99
    Product Rating: 2.00 Stars
    POLYLOCKS 3/8" 16 PER SET
    (Part #91599788)
    x
                

    For use without stud girdle. Works with most aluminum roller rocker arms. Has a 5/8" hex with a 0.550" outside body diameter. Set of 16.

  • Crower Stainless Roller Rocker Arms, Small Block Chevy, 1.6:1
    Crower Stainless Roller Rocker Arms, Small Block Chevy, 1.6:1
    (Part #29073641)
    x
                Features oversized Torrington needle bearings and sure-lock rocker nuts. Fits 262-400 S/B Chevy with 7/16" studs. Set of 16.
            
  • Mr Gasket 1591 Timing Tape, 8 Inch Balancer
    Mr Gasket 1591 Timing Tape, 8 Inch Balancer
    (Part #5501591)
    x
                A convenient way to avoid the expense of having the harmonic balancer degreed. This timing tape is precisely accurate in calibration. Use it for accurate timing, setting valve lash or when degreeing the harmonic balancer. For S/B & B/B Chevy V8 engines.
            
  • COMP Cams 35-600-4 Thumpr Cam, Ford 302-351W, 2000-5800 RPM
    COMP Cams 35-600-4 Thumpr Cam, Ford 302-351W, 2000-5800 RPM
    (Part #282356004)
    x
                

    Have you ever been to the races and heard how nasty the cams sound? COMP Cams has developed the Thumpr series of cams that give you every day drivability but have that nasty race engine sound. Pick the cam that fits your application, add a set of COMP Cam hydraulic lifters and you will be the talk of the town. 

    Thumpr Camshafts are a new series of retro-fit hydraulic roller and hydraulic flat tappet cams designed for use in a variety of small and big block V8s. The aggressive exhaust note of a Thumpr cam comes from a combination of early exhaust valve opening, long exhaust duration and a generous amount of intake and exhaust overlap - maximizing the rough-idling characteristics of the cams without negatively impacting power or streetability.

    282-356004 Specs (PDF)

  • Small Block Chevy Stainless Steel Roller Rocker Arms, 1.6:1, 3/8 Stud
    Small Block Chevy Stainless Steel Roller Rocker Arms, 1.6:1, 3/8 Stud
    (Part #57523504)
    x
                

    These Small Block Chevy stainless steel roller rockers are built of 15-5PH material which gives you superior strength over other stainless rockers. They have more needle bearings which increases strength while reducing friction. Built to clear 1.55" valve springs.

    • Designed for higher open valve spring pressures
    • Strong 15-5PH stainless steel
    • Specially cast and machined for larger valve springs and retainers
    • Light weight with integral pushrod seat
    • Oversize trunions and full roller precision needle and cage bearings
    • More needle bearings for increased performance and rocker life
    • CNC machined pushrod cups and heat-treated Cr40 roller tips
    • Internal oiling system for long lasting performance
    • H.D. Polylocks included
  • Isky Racing Cams F85-02 Adjustable Flathead Ford Lifters
    Isky Racing Cams F85-02 Adjustable Flathead Ford Lifters
    (Part #4508502)
    x
                

    Isky's adjustable lifters are the preferred way to maintain critical valve train tolerances while avoiding the hassle of grinding your valve seats for clearance. Simply set your valve lash using the adjustable set screw.

    Made in the USA. Fits 1932-53 Ford and Mercury Flathead V8s.

  • Clay Smith Hydraulic Cam / Lifter Kit, 292/294 Small Block Chevy 383
    Clay Smith Hydraulic Cam / Lifter Kit, 292/294 Small Block Chevy 383
    (Part #1503103)
    x
                

    These camshaft / lifter kits are perfect for use with SBC 377 to 390 CID with Air Flow Research 190 to 210 heads. Max Power 6200 rpm, Peak torque 3600. This cam is designed for engines using 3.750" stroke with the AFR Heads and their high Intake the Exhaust flow ratio. This cam maximizes the power potential of these heads by taking advantage of the RAM Effect caused by piston velocity at low rpm. Increase header size of 1.750" is highly suggested to take full advantage of the power band of this camshaft.  Adding 1.6 ratio rocker will increase rpm to 6400. We recommend a 3000 stall, an 850CFM carb, and a minimum of 10:1 compression.

    • Adv. - 292 / 294
    • .050" - 233 / 235
    • .100" - 202 / 204
    • .200" - 152 / 150
    • .300" - 94 / 79
    • Lift - .548 / .510
    • Centerlines - 104 / 112
    • Lobe Sep. - 108
    • Includes a set of tie-bar style hydraulic roller lifters
  • ALUM. ROCKERS-1.6x3/8" SBC
    $199.99
    ALUM. ROCKERS-1.6x3/8" SBC
    (Part #57533504)
    x
                

    BluMax aluminum roller rockers are built of the finest 6061 aluminum extrusions which gives you superior strength over other rockers. Rockers are specially machined to allow for larger 1.55" springs and retainers with full-cage friction reducing needle bearings for added durability. The nose rollers and shafts are Cr40 steel, heat-treated and hardened to minimize the wear that naturally occurs between the roller tip and the valve stem. 

    • Designed to meet the demands of most high-lift roller camshaft profiles
    • Specially machined to accommodate larger valve springs and retainers
    • SAE-52100 Full complement precision needle and cage roller bearings
    • Anodized for a superior finish and to reduce operating temperatures
    • CNC machined pushrod cups and heat-treated Cr40 roller tips
    • Internal oiling system for long lasting performance
    • H.D. Polylocks included

     

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