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The most popular form of dirt track racing across the country, Modified racing is what most people think of when you talk about dirt track racing. Modifieds have come a long ways, but originally got their name because racers were modifying as many things as possible to gain a competitive advantage. Speedway Motors has all the Modified parts and racing accessories you'll ever need on our shelves year round to keep you prepared for whatever is thrown your way out on the track.

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400, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 414 cu. in.

Cylinder Head Material: Aluminum

Piston Material: Forged Aluminum

Quick View

350, Long Block Crate Engine Type, Distributor Included

Ships Flat Rate

Crate Engine Type: Long Block

Engine Displacement: 350 cu. in.

Compression Ratio: 9.5:1

Camshaft Type: Hydraulic Roller Tappet

Quick View

350, Long Block Crate Engine Type, Distributor Included

Ships Flat Rate

Crate Engine Type: Long Block

Engine Displacement: 350 cu. in.

Compression Ratio: 9.0:1

Camshaft Type: Hydraulic Roller Tappet

Quick View

350, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
On Sale

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 355 cu. in.

Camshaft Type: Solid Flat Tappet

Cylinder Head Material: Cast Iron

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$7,916.99
$8,775.00

604, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
On Sale

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 400 horsepower

Compression Ratio: 9.6:1

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383, Long Block Crate Engine Type, 445 ft./lbs. Torque

Ships Flat Rate

Crate Engine Type: Long Block

Engine Displacement: 383 cu. in.

Horsepower: 435 horsepower

Compression Ratio: 9.6:1

Quick View
$7,505.99
$8,320.00

604, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
On Sale

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 400 horsepower

Compression Ratio: 9.72:1

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350, 604, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
Video Available

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 400 horsepower

Compression Ratio: 9.72:1

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350, Long Block Crate Engine Type, 406 ft./lbs. Torque

Ships Flat Rate

Crate Engine Type: Long Block

Engine Displacement: 350 cu. in.

Horsepower: 405 horsepower

Compression Ratio: 9.72:1

Quick View
$6,004.99
$6,656.00

602, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
On Sale
Video Available

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 350 horsepower

Compression Ratio: 9.1:1

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350, Long Block Crate Engine Type, 405 ft./lbs. Torque

Ships Flat Rate

Crate Engine Type: Long Block

Engine Displacement: 350 cu. in.

Horsepower: 385 horsepower

Compression Ratio: 9.6:1

Quick View

602, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
On Sale
Video Available

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 350 horsepower

Compression Ratio: 9.1:1

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Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: FIA 8860-2018 ABP

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

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Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: FIA 8860-2018 ABP

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View

602, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
On Sale
Video Available

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 350 horsepower

Compression Ratio: 9.1:1

Quick View

602, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
Video Available

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 350 horsepower

Compression Ratio: 9.12:1

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$4,410.00
$5,600.00

602, Deluxe Crate Engine Crate Engine Type

Ships Flat Rate
On Sale
New Product

Crate Engine Type: Deluxe Crate Engine

Engine Displacement: 350 cu. in.

Horsepower: 350 horsepower

Compression Ratio: 9.12:1

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Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: FIA 8860-2018

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View

Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: FIA 8860-2018

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View

Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: FIA 8860-2018

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View

Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: FIA 8860-2018

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

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$2,503.99
$2,640.00

Universal Fit, 2-Speed Transmission Speeds

Ships Free
On Sale

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View
$2,503.99
$2,640.00

Universal Fit, 2-Speed Transmission Speeds

Ships Free
On Sale

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View

Winters Pro Eliminator, Winters Ultimate Pro, Natural

Axle Type: Full Floating

Overall Width: 60"

Differential Included: Yes

Gear Ratio: 4.86:1

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Brinn, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View

350, 350 mains Main Journal Style, 3.480" Engine Stroke

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.480"

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Quick View

Grand National, Winters Quick Change, Rear Position

Position: Rear

Axle Type: Full Floating

Overall Width: 60"

Differential Included: Yes

Quick View

Rear Position, Full Floating Axle Type, 31 Axle Splines

Position: Rear

Axle Type: Full Floating

Overall Width: 60"

Differential Included: Yes

Quick View
$2,369.99
$2,562.00

350, 383, 350 mains Main Journal Style, Balanced

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.750"

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Quick View

Position: Rear

Axle Type: Full Floating

Overall Width: 60"

Differential Included: Yes

Quick View

350, 350 mains Main Journal Style, 3.480" Engine Stroke

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.480"

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Quick View

Grand National, Winters Quick Change, Rear Position

Position: Rear

Axle Type: Full Floating

Overall Width: 60"

Differential Included: Yes

Quick View

Bert Gen II, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View

Bert Gen II, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View

350, 383, 350 mains Main Journal Style

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.750"

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Quick View
$2,232.99
$2,475.00

350, 350 mains Main Journal Style, 3.480" Engine Stroke

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.480"

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Quick View

350, 350 mains Main Journal Style, 3.480" Engine Stroke

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.480"

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Quick View
$2,222.99
$2,231.57

Bert Gen II, 2-Speed Transmission Speeds

Ships Free
On Sale

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View
$2,222.99
$2,231.57

Bert Gen II, 2-Speed Transmission Speeds

Ships Free
On Sale

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View

350, 350 mains Main Journal Style, 3.500" Engine Stroke

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.500"

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Quick View

Bert LMZ, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View
$2,216.99
$2,397.00

Bert LMZ, 2-Speed Transmission Speeds

Ships Free
On Sale

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View
$2,149.99
$2,368.44

Brinn, 2-Speed Transmission Speeds

Ships Free
On Sale

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10 tooth

Output Shaft Spline Count: 27 tooth

Bellhousing Included: No

Quick View

Many Engines, .50" Shaft Diameter, Black

Ships Free

Shaft Diameter: .50"

Cap Type: HEI / Male

Cap Terminal Style: HEI / Male

Distributor Cap Color: Black

Quick View

Brinn, 2-Speed Transmission Speeds

Ships Free
Video Available

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: No

Quick View

Many Engines, 3.50" Cap Diameter, Black

Ships Free

Cap Diameter: 3.50"

Trigger Style: Magnetic

Cap Type: HEI / Male

Cap Terminal Style: HEI / Male

Quick View

Grand National, Winters Quick Change, Rear Position

Position: Rear

Axle Type: Full Floating

Differential Included: Yes

Gear Ratio: 4.12:1

Quick View

Falcon, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Bellhousing Included: No

Yoke Included: Yes

Quick View

Ford 9 Inch, Rear Position, 12.19 Inch Rotor Diameter

Ships Free

Position: Rear

Bolt Pattern: Multi: 5 on 4.5" | 4.75" | 5"

Rotor Diameter: 12.19 Inch

Rotor Type: Vented

Quick View

Ford 9 Inch, Rear Position, 12.19 Inch Rotor Diameter

Ships Free

Position: Rear

Bolt Pattern: Multi: 5 on 4.5" | 4.75" | 5"

Rotor Diameter: 12.19 Inch

Rotor Type: Vented

Quick View

302, 347, 3.400" Engine Stroke, Flat Top Piston Style

Ships Free
On Sale

Engine Stroke: 3.400"

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.400"

Connecting Rod Material: Forged 4340 Steel

Quick View

Eaton Power Steering Pump Style, Natural

Ships Free

Power Steering Pump Style: Eaton

Power Steering Pump Finish: Natural

Power Steering Pump Color: Natural

Power Steering Pulley Included: Yes

Quick View

Falcon, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 18

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View

Universal Fit, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: No

Quick View

Bert Gen II, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: No

Quick View

Universal Fit, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: No

Quick View

Rear Position, Full Floating Axle Type, 31 Axle Splines

Position: Rear

Axle Type: Full Floating

Overall Width: 60"

Differential Included: Yes

Quick View
$1,799.99
$1,899.99

Assembled Cylinder Head Style, Cast Iron, Natural

Ships Free
On Sale

Cylinder Head Style: Assembled

Material Type: Cast Iron

Finish: Natural

Combustion Chamber Volume: 69cc

Quick View

Falcon, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 18

Output Shaft Spline Count: 27

Bellhousing Included: Yes

Quick View

Ford 9 Inch, Rear Position, 12.19 Inch Rotor Diameter

Ships Free

Position: Rear

Bolt Pattern: Multi: 5 on 4.5" | 4.75" | 5"

Rotor Diameter: 12.19 Inch

Rotor Type: Vented

Quick View

377, 400, 400 mains Main Journal Style

Ships Free

Main Journal Style: 400 mains

Engine Stroke: 3.480"

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Quick View

350, 395, 350 mains Main Journal Style

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.875"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

377, 400, 400 mains Main Journal Style

Ships Free

Main Journal Style: 400 mains

Engine Stroke: 3.480"

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Quick View
$1,725.99
$1,770.37

Oval Track Cars

On Sale
Quick View
$1,717.99
$1,858.00

400, 400 mains Main Journal Style, 3.750" Engine Stroke

Ships Free
On Sale

Main Journal Style: 400 mains

Engine Stroke: 3.750"

Connecting Rod Type: I-Beam

Connecting Rod Length: 5.700"

Quick View
$1,709.99
$1,849.00

350, 350 mains Main Journal Style, 3.480" Engine Stroke

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.480"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

350, 395, 350 mains Main Journal Style

Ships Free

Main Journal Style: 350 mains

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Connecting Rod Material: Forged 4340 Steel

Quick View

400, 421, 350 mains Main Journal Style

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.875"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

400, 421, 350 mains Main Journal Style

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.875"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

Bert LMZ, 2-Speed Transmission Speeds

Ships Free

Transmission Speeds: 2-Speed

Input Shaft Spline Count: 10

Output Shaft Spline Count: 27

Bellhousing Included: No

Quick View

Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: Snell SA2020

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View

Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: Snell SA2020

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View

Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: Snell SA2020

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View

Oval Track Cars, Full Face Helmet Type, Adult Age Group

Ships Free

Helmet Type: Full Face

Safety Rating: Snell SA2020

Helmet Shell Material: Carbon Fiber

Restraint Compatible: Yes

Quick View
$1,698.99
$1,836.00

350, 383, 350 mains Main Journal Style

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.750"

Connecting Rod Type: I-Beam

Connecting Rod Length: 6.000"

Quick View

Oval Track Cars, One-Piece Suit Style, Nomex, 3 Layers

Ships Free

Suit Style: One-Piece

Suit SFI Rating: FIA Only

Suit FIA Rating: CIK-FIA 8856-2000

Suit Material Type: Nomex

Quick View
$1,693.99
$1,831.00

350, 383, 350 mains Main Journal Style

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.750"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

350, 383, 350 mains Main Journal Style

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.750"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View
$1,693.99
$1,831.00

350, 350 mains Main Journal Style, 3.480" Engine Stroke

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.480"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

400, 421, 400 mains Main Journal Style

Ships Free

Main Journal Style: 400 mains

Engine Stroke: 3.875"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

400, 434, 400 mains Main Journal Style

Ships Free

Main Journal Style: 400 mains

Engine Stroke: 4.000"

Connecting Rod Type: H-Beam

Connecting Rod Length: 6.000"

Quick View

350, 350 mains Main Journal Style, 3.480" Engine Stroke

Ships Free

Main Journal Style: 350 mains

Engine Stroke: 3.480"

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.700"

Quick View
$1,678.99
$1,815.00

350, 383, 350 mains Main Journal Style

Ships Free
On Sale

Main Journal Style: 350 mains

Engine Stroke: 3.750"

Connecting Rod Type: H-Beam

Connecting Rod Length: 5.700"

Quick View