Modified Engine Parts

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Modified

4,978 products

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Clevite |

#757M338

Clevite M338 P-Series 1969-Up Small Block Chevy Main Bearings

(21)

$65.99

/set

14 Inch x 5 Inch Tall Air Cleaner Outerwear

Outerwears |

#564445

14 Inch x 5 Inch Tall Air Cleaner Outerwear

(14)

$24.10

/each

Fel-Pro |

#3441010

Fel-Pro P1010 S/B Chevy 265-400 Copper Ring Head Gasket 4.166 In. Bore

(14)

Sold in Quantity:

Each

GTIN Code:

084113010101

$61.99

/each

Speedway S/B Chevy Intake Gasket Set, 1206 Style, 1/8 Inch Thick

Speedway Motors |

#91010235

Speedway S/B Chevy Intake Gasket Set, 1206 Style, 1/8 Inch Thick

(4)

Material Thickness:

.125"

Overall Height:

2.875"

$19.99

/set

MSD 35593 Wire Set, SC Blk, SB Chevy With HEI Cap

MSD |

#54735593

MSD 35593 Wire Set, SC Blk, SB Chevy With HEI Cap

(3)

Conductor Style:

Spiral Core

Diameter:

8.5"

Cap Terminal Style:

HEI / Male

$121.95

/each

IMCA Modified Spec Engine Guide | Everything You Need to Know

There's a new spec engine option for the 2025 IMCA Modified season. Here's what you need to know.

Speedway Motors Introduces New IMCA Modified Spec Racing Engine as they Kick Off 2025 Race Season

Speedway Motors announced today the introduction of a new IMCA Modified Spec Racing Engine as they kick off the 2025 race season along with discounts Jan. 27-Feb. 2 to help their customers get ready for race season.

How to Mount a Modified Race Car Body

Learn a few tips on how to properly mount Modified bodies and some products that will help get your race car body fabrication job done!

Setting Up Your Modified Race Car

In order to be competitive and win, it's important to find the right set up that works for you and your car. Here's some general reminders to remember during set up!

Quick Change Bolt On Components for a Modified Race Car

This article demonstrates how to install a complete Winters quick change kit with additional parts including birdcages, brackets, and calipers for a modified race car.

Pick a Side: Engine Swaps

Where do you stand on engine swaps? Does your Ford need to have a Ford engine and your Chevy need to have a Chevy? Or, does anything go in the name of speed? We want to hear your opinion...

1967 Firebird Engine Refurbish

Follow this restoration guide as Josh breathes new life back into his Pontiac engine.

Dirt Modified Racing Classes Explained | A-Mod, B-Mod, and E-Mod

Dirt modified racing delivers high-horsepower, adrenaline-fueled action, learn more about them and their racing classes

Cover Car Contest Winner: Bryce's IMCA Northern Sport Modified

Meet Bryce Campbell. He's the winner of our Cover Car Contest and this is his IMCA Sport Mod. He's taken his whole family racing with him, and we're thrilled to bring you his story.

Fix An Overheating Race Engine | Beyond The Cooling System

Overheating is a major cause of DNFs and damaged engines. We'll go beyond the cooling system for solutions to your overheating issues.

AC Delco |

#9100140

AC Delco R44T Conventional Spark Plugs, Set of 8

(1)

Sold in Quantity:

Set

$24.99

/kit

Forged 421 SBC Stroker Kit Rotating Assembly, 400 Mains, 6" Rod

Speedway Motors |

#9151272

Forged 421 SBC Stroker Kit Rotating Assembly, 400 Mains, 6" Rod

(4)

Connecting Rod Type:

H-Beam

Piston Style:

Flat Top

Piston Material:

Forged Aluminum

as low as

$2,157.99

/kit

-11%

Moroso |

#5459867M

Moroso 9867M Mag-Tune Spark Plug Wires, SBC, Under Headers

(18)

Conductor Style:

Spiral Core

Diameter:

Cap Terminal Style:

HEI / Male

$59.99

/set

$67.46

-6 AN Carb and Fuel Pump Fitting, 5/8 Inch-18 Inverted Flare Thread

Speedway Motors |

#6174038

-6 AN Carb and Fuel Pump Fitting, 5/8 Inch-18 Inverted Flare Thread

(13)

Fitting End A:

-6 AN Male

Fitting End B:

5/8"-18 I.F. Male

Material Type:

Aluminum

$11.49

/each

Speedway Small Block Chevy Tall Steel Valve Covers

Speedway Motors |

#91017105

Speedway Small Block Chevy Tall Steel Valve Covers

(20)

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Steel

$24.99

/pair

MSD 8252 Blaster HVC Coil, Works With MSD 6 Series Units

MSD |

#5478252

MSD 8252 Blaster HVC Coil, Works With MSD 6 Series Units

(4)

Maximum Voltage:

42,000 volts

$219.95

/each

-18%

KB Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod

Keith Black |

#474120

KB Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod

(3)

Piston Style:

Flat Top w/ 2 valve reliefs

Piston Material:

Hypereutectic Aluminum

Wrist Pin Included:

Yes

$417.60

/set

$515.55

Bills Hot Rod Co. 100 Series GM Alternator Brackets, Short Pump

Bills Hot Rod Co |

#91667917

Bills Hot Rod Co. 100 Series GM Alternator Brackets, Short Pump

(46)

Mounting Side:

Driver Side

Material Type:

Mild Steel

Water Pump Style:

Short

as low as

$92.99

/each

Speedway Moly Piston Rings, 4.00 Bore, Style A

Speedway Motors |

#9152510

Speedway Moly Piston Rings, 4.00 Bore, Style A

(15)

Piston Ring Style:

Piston Ring Design:

Conventional

Sold in Quantity:

Set

as low as

$79.99

/set

-30%

Speedway Motors |

#910154

Gilmer Drive Belts

(9)

Belt Type:

Gilmer

Material Type:

Rubber

Sold in Quantity:

Each

$15.29

/each

$21.99

Small Block Chevy 400 Harmonic Balancer, 8 Inch, Plain Steel

Speedway Motors |

#91015400

Small Block Chevy 400 Harmonic Balancer, 8 Inch, Plain Steel

(7)

Outside Diameter:

Material Type:

Steel

$80.99

/each

Speedway Super Flow 14 Inch Air Filter Top, Chrome

Speedway Motors |

#91011081

Speedway Super Flow 14 Inch Air Filter Top, Chrome

(18)

Overall Diameter:

14"

Shape:

Round

Housing Finish:

Chrome

$52.99

/each

$164 Off

Powermaster |

#91068120

Powermaster 8-801 SB Chevy 50 Amp Mini Alternator Kit w/Serp-Belt

(7)

One Wire Alternator:

Yes

Alternator Amperage:

53 amp

Alternator Finish:

Powder Coated

$363.99

/each

$527.50

Chrome 90 Adapter Fitting, 3/8 Inch Hose to 3/8 NPT

Speedway Motors |

#91611057

Chrome 90 Adapter Fitting, 3/8 Inch Hose to 3/8 NPT

(11)

Fitting End A:

3/8" Hose barb

Fitting End B:

3/8" NPT Male

Angle:

90 degree

$10.49

/each

Fel-Pro |

#3442802

Fel-Pro 2802 Small Block Chevy Performance Gasket Set

(7)

Material Type:

Steel

Bore Size:

4.166"

$169.99

/set

SBC Tall Aluminum Valve Covers & Shielded Breathers, Chrome

Speedway Motors |

#9100641

SBC Tall Aluminum Valve Covers & Shielded Breathers, Chrome

(3)

Valve Cover Mounting Style:

Perimeter Bolt

Material Type:

Aluminum

Finish:

Natural

$103.99

/kit

Speedway Motors |

#9101747

LS Engine Swap Conversion Low Profile Oil Pan, Chrome, 10 AN

(2)

Sump Style:

Wet Sump

Sump Location:

Rear

$212.99

/each

MSD 84023 HEI Extreme Cap and Rotor Kit, Red

MSD |

#54784023

MSD 84023 HEI Extreme Cap and Rotor Kit, Red

(3)

Cap Type:

HEI / Male

Color:

Red

Cap Terminal Style:

HEI / Male

$134.95

/each

Premium Small Block Chevy Rotating Assembly, 400 Flat Top, 6 Inch Rods

Speedway Motors |

#91510290

Premium Small Block Chevy Rotating Assembly, 400 Flat Top, 6 Inch Rods

(1)

Connecting Rod Type:

H-Beam

Piston Style:

Flat Top

Piston Material:

Hypereutectic Aluminum

$1,732.99

/kit

Small Block Chevy Intake Gasket Set, Pro Heads

Speedway Motors |

#91010219

Small Block Chevy Intake Gasket Set, Pro Heads

(2)

Sold in Quantity:

Pair

Water Crossover Style:

Blocked

$18.49

/pair

Fel-Pro |

#3441628

Fel-Pro P1628 Small Block Chevy Valve Cover Gaskets-1/4 Inch

(8)

Sold in Quantity:

Set

Gasket Material:

Silicone/Steel

Overall Thickness:

0.250"

$72.99

/pair

High Volume Adjustable Small Block Chevy SBC Oil Pump, 5/8 Pickup

Speedway Motors |

#577OP55HVD

High Volume Adjustable Small Block Chevy SBC Oil Pump, 5/8 Pickup

(5)

Oil Pump Volume:

High Volume

Oil Pump Pressure:

High Pressure

Material Type:

Steel

$77.99

/each

Bills Hot Rod Co |

#91667918

Bills Hot Rod Co. 100 Series Sanden 508 A/C Compressor Brackets

(15)

Fits A/C Compressor Style:

Sanden SD

Water Pump Style:

Short

Mounting Side:

Passenger Side

as low as

$106.99

/each

Chevy V8 Chrome Mini Starter, High Torque, SBC, BBC, 1.4 kW

Speedway Motors |

#91067439

Chevy V8 Chrome Mini Starter, High Torque, SBC, BBC, 1.4 kW

(5)

Starter Size:

Mini

Flywheel/Flexplate Tooth Count:

153-tooth/168-tooth

Mount Type:

Inline

$275.99

/each

-48%

Fragola |

#61768906

Fragola 689006-BL Real-Street 90 Degree PTFE Hose End Fitting, -6 AN

(5)

Fitting Hose Size:

-6 AN

Fitting End A:

-6 AN Female

Fitting End B:

-6 AN Hose

$22.99

/each

$44.83

King CR 807XPNSTDX XP SBC Narrowed Rod Bearings

King Bearings |

#910807XP

King CR 807XPNSTDX XP SBC Narrowed Rod Bearings

(7)

$93.99

/set

Speedway SBF Small Block Ford 351W HEI Distributor

Speedway Motors |

#91012360

Speedway SBF Small Block Ford 351W HEI Distributor

(18)

Cap Type:

HEI / Male

Advance Type:

Mechanical and Vacuum

$151.99

/each

KSE KSC2005 Bypass Fuel Pressure Regulator

KSE Racing |

#91032949

KSE KSC2005 Bypass Fuel Pressure Regulator

(3)

Regulator Style:

Return

Material Type:

Aluminum

$170.10

/each

Super Flow Oval Air Cleaner Set, Black Element, Black Trim, 12 In

Speedway Motors |

#91602216

Super Flow Oval Air Cleaner Set, Black Element, Black Trim, 12 In

(3)

$130.99

/each

Driven Racing Oil |

#91002107

Driven Racing Oil 02107 HR1 Conventional 15W50 Motor Oil, 12 Qts

(6)

Oil Weight:

15W50

Oil Type:

Conventional

ZDDP Enhanced:

Yes

$143.88

/box

Valve Lash Rocker Wrench, 5/8 In w/ 3/16 and 7/32 In. T-Wrenches

Speedway Motors |

#91081128

Valve Lash Rocker Wrench, 5/8 In w/ 3/16 and 7/32 In. T-Wrenches

(10)

Sold in Quantity:

Kit

$36.99

/set

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Modified Engine Parts

Subcategory

Part

Brand

Transmission Family

Rear Axle Family

Chassis

Engine Family

Sanctioning Body

Availability

Discounts

Price

Customer Rating

Products

Clevite M338 P-Series 1969-Up Small Block Chevy Main Bearings

14 Inch x 5 Inch Tall Air Cleaner Outerwear

Fel-Pro P1010 S/B Chevy 265-400 Copper Ring Head Gasket 4.166 In. Bore

Speedway S/B Chevy Intake Gasket Set, 1206 Style, 1/8 Inch Thick

MSD 35593 Wire Set, SC Blk, SB Chevy With HEI Cap

Related Articles

AC Delco R44T Conventional Spark Plugs, Set of 8

Forged 421 SBC Stroker Kit Rotating Assembly, 400 Mains, 6" Rod

Moroso 9867M Mag-Tune Spark Plug Wires, SBC, Under Headers

-6 AN Carb and Fuel Pump Fitting, 5/8 Inch-18 Inverted Flare Thread

Speedway Small Block Chevy Tall Steel Valve Covers

MSD 8252 Blaster HVC Coil, Works With MSD 6 Series Units

KB Chevy 350 Hypereutectic Pistons, Flat Top, 5.7 Rod

Bills Hot Rod Co. 100 Series GM Alternator Brackets, Short Pump

Speedway Moly Piston Rings, 4.00 Bore, Style A

Gilmer Drive Belts

Small Block Chevy 400 Harmonic Balancer, 8 Inch, Plain Steel

Speedway Super Flow 14 Inch Air Filter Top, Chrome

Powermaster 8-801 SB Chevy 50 Amp Mini Alternator Kit w/Serp-Belt

Chrome 90 Adapter Fitting, 3/8 Inch Hose to 3/8 NPT

Fel-Pro 2802 Small Block Chevy Performance Gasket Set

SBC Tall Aluminum Valve Covers & Shielded Breathers, Chrome

LS Engine Swap Conversion Low Profile Oil Pan, Chrome, 10 AN

MSD 84023 HEI Extreme Cap and Rotor Kit, Red

Premium Small Block Chevy Rotating Assembly, 400 Flat Top, 6 Inch Rods

Small Block Chevy Intake Gasket Set, Pro Heads

Fel-Pro P1628 Small Block Chevy Valve Cover Gaskets-1/4 Inch

High Volume Adjustable Small Block Chevy SBC Oil Pump, 5/8 Pickup

Bills Hot Rod Co. 100 Series Sanden 508 A/C Compressor Brackets

Chevy V8 Chrome Mini Starter, High Torque, SBC, BBC, 1.4 kW

Fragola 689006-BL Real-Street 90 Degree PTFE Hose End Fitting, -6 AN

King CR 807XPNSTDX XP SBC Narrowed Rod Bearings

Speedway SBF Small Block Ford 351W HEI Distributor

KSE KSC2005 Bypass Fuel Pressure Regulator

Super Flow Oval Air Cleaner Set, Black Element, Black Trim, 12 In

Driven Racing Oil 02107 HR1 Conventional 15W50 Motor Oil, 12 Qts

Valve Lash Rocker Wrench, 5/8 In w/ 3/16 and 7/32 In. T-Wrenches