Late Model | Modified

Race Engines & Drivetrains

Shop circle track engines, stock car engines, crate engines, racing transmissions, quick-change rear ends and major drivetrain assemblies for asphalt oval racing.

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About Asphalt Oval Racing Engines, Transmissions and Drivetrains

Shop circle track engines, stock car engines, crate engines, racing transmissions, quick-change rear ends and major drivetrain assemblies for asphalt oval racing on RaceTeams.com.

When an asphalt oval engine changes hands, the price tag is only the beginning of the conversation. Racers want to know who built it, what rule package it was built for, how many races are on it, when it was last refreshed, whether the seals matter to the intended class, what dyno documentation exists, what is included and what happens if the engine needs work before it ever reaches the track.

The same is true for transmissions and rear-end assemblies. A package that worked at one track, with one gear rule and one class, may not be right for the next car or the next step in a driver's program.

RaceTeams.com gives short track racers, touring teams, engine builders, drivetrain shops, race schools and sellers a focused place to buy and sell complete or substantially complete powertrain assemblies.

Shop Circle Track Engines and Major Drivetrain Assemblies

Listings may include complete race engines, crate engines, sealed engines, open engines, spec engines, refreshed engines, used take-out engines, long blocks, short blocks, rebuildable engine cores, complete racing transmissions, gearboxes, assembled quick-change rear ends, differentials, transaxles where applicable and other major drivetrain assemblies.

This category is intentionally about the big assemblies. If the buyer is purchasing the whole powerplant, a substantially complete engine, a complete transmission or a major rear-end assembly, it belongs here.

Standalone replacement parts such as carburetors, fuel pumps, ignition boxes, headers, clutches, driveshafts, axles, gear sets and other individual components belong under Asphalt Oval Racing Parts unless they are included as part of a complete assembly being sold here.

Engine building, dyno work, rebuilding, tuning, installation and trackside diagnosis are services and belong under Asphalt Oval Race Engine and Drivetrain Services.

Crate Engines, Sealed Engines and Rulebook Fit

Crate and sealed-engine racing is a major part of the short track economy. Chevrolet Performance currently markets Circle Track engines including the CT350, CT400 and CT525, while Ford Racing also supports sealed racing engine programs. A familiar name does not automatically make an engine legal for every Late Model, Modified or weekly class.

Listings may include 602-style and 604-style crate packages where that description is accurate, other factory-sealed circle track engines, series-specific packages and used engines that previously competed under sealed programs.

Sellers should identify part number, builder or manufacturer, seal status, known service history, races or hours since service, included accessories, dyno documentation if available and any known changes from the original configuration.

Buyers should verify the current rulebook before treating any seal, part number or previous class history as proof of eligibility.

Late Model Stock, Super Late Model and Pro Late Model Engines

Late Model racing creates one of the most active powertrain markets in paved oval racing. The right package depends heavily on class and region.

Listings may include Late Model Stock engines, Super Late Model open engines, Pro Late Model crate engines, Limited Late Model packages, ACT-style Late Model engines and Pro Stock engines.

Series such as the CARS Tour, ASA STARS National Tour, ASA Southern Super Series, ASA Midwest Tour, ASA/CRA Super Series, American-Canadian Tour and PASS can provide useful context when the engine actually came from or was built around those rules.

A buyer preparing for Hickory or South Boston may be shopping for a very different package than a team heading to Five Flags, New Smyrna, Slinger or Winchester. Sellers should describe the rule package instead of assuming the buyer knows what a broad phrase such as Late Model engine means.

Modified Engines and Powertrain Assemblies

Modifieds demand their own level of detail. Tour Modifieds, SK Modifieds, Sportsman Modifieds and other pavement Modified classes can differ in engine rules, induction, weight, transmission and rear-end requirements.

Listings may include complete Modified engines, sealed crate engines, open engines, complete racing transmissions and assembled quick-change rear ends.

References to the NASCAR Whelen Modified Tour, SMART Modified Tour, Race of Champions Modified Series or a weekly Modified program should be used only when they accurately explain the engine's history or intended rule package.

Sellers should identify engine type, builder, displacement when relevant, refresh history, transmission model, ratios when known, rear-end type and what is included in the package.

Street Stock, Crown Vic and Weekly Racing Powertrains

The grassroots engine market is built on practicality. A weekly racer may be looking for a durable replacement engine after a failure on Saturday night, a backup motor for the points season, or a complete drivetrain to move a car into a new class.

Listings may include substantially complete engines and transmissions for Street Stocks, Super Stocks, Pure Stocks, Sportsman cars, Crown Vics, Mini Stocks, Hornets, Compacts, Four Cylinders and Pro Trucks.

For production-based classes, sellers should include make, model or engine family, year range when relevant, transmission type, known mileage or race history if available, modifications and whether the package was built around a particular local track rule set.

A cheap engine that requires a complete wiring, cooling, fuel or mounting conversion can become an expensive engine quickly. Good listings help buyers understand that before money changes hands.

Legends Cars, Bandoleros and Development Powertrains

Legends Cars and Bandoleros have distinct powertrain packages and a strong family racing market.

Listings may include complete Legends engines, complete Bandolero engine packages and major drivetrain assemblies used in those programs. Sellers should identify model or generation, known rebuild history, seal status where applicable, included components and the division or car the package came from.

Individual chains, sprockets, clutches, starters, ignition pieces and other replacement components belong in Racing Parts when sold separately.

Families should verify current INEX or track requirements before purchasing an engine based solely on a previous owner's description.

ARCA and National-Style Stock Car Powertrains

Former ARCA and national-series powertrain assemblies can attract buyers for active competition, testing, driver development, schools, restoration and display.

Listings may include former ARCA engines, complete development-series engine packages, racing transmissions and rear-end assemblies with documented team or series history.

Sellers should distinguish between an actual team-used component, a package built to similar specifications and a generic stock car engine. Names such as NASCAR or ARCA should describe verifiable history or context, not be used as a shortcut for value.

The national ladder matters to many short track racers, but the same buying discipline applies at every level: condition, documentation, service history and rule fit matter more than the decal on the valve cover.

Transmissions, Gearboxes and Quick-Change Rear Ends

A transmission or rear-end assembly can be as important to the package as the engine itself.

Listings may include complete racing transmissions, manual gearboxes, assembled quick-change rear ends, differentials, third-member assemblies and other major drivetrain units.

Sellers should describe manufacturer, model, ratios when known, spline configuration where relevant, case condition, service history, leaks, repairs, crash involvement and included hardware.

Individual gears, clutches, driveshafts, axles, yokes and replacement driveline parts belong under Racing Parts when sold separately.

Used Engines, Refresh History and Documentation

Used race engines are common, but uncertainty is expensive. A buyer may not know whether the engine has ten laps since refresh or an entire season unless the seller has records.

Strong listings include invoices, dyno sheets, builder tags, seal information, refresh dates, race counts, known overheating events, oil-pressure concerns, leaks, repairs and storage history. If the history is unknown, say unknown.

Do not describe an engine as fresh, sealed, legal, dyno-proven or race-ready unless the listing includes information that supports the claim. A seller can report what was represented to them, but should distinguish that from documented history.

What Sellers Should Include

Include assembly type, engine family or displacement when relevant, manufacturer or builder, part number, class or rule package, condition, seal status, service history, races or hours since refresh if known, dyno documentation, included accessories, missing accessories, transmission model and ratios, rear-end type, known damage, leaks, overheating history, storage history, asking price, location and shipping or pickup terms.

For heavy or high-value assemblies, explain freight requirements and whether a crate, stand or shipping container is included.

What Buyers Should Review Before Purchasing

Verify class and track rules, builder history, service history, seal status, documentation, fitment, included components and the cost of inspection or refresh before use. Confirm whether the listing is a complete engine, long block, short block, core, complete transmission, gearbox or assembled rear end.

RaceTeams.com does not inspect, dyno test, certify, approve or guarantee engines, transmissions, gearboxes, rear ends, seal status, service history, horsepower, torque, class legality, rule compliance, fitment, reliability, seller ownership, pricing, shipping or buyer outcomes.

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