We help determine what are the best 10-spline quick change gear ratios for your street or racing needs

Quick Change Gear Chart | RPM Gear Ratio Formula for 10-Spline

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.

Quick Change Bolt On Components for a Modified Race Car

Tim talks about our Winters quick change rear end & components.

Speedway Tech Talk - Quick Change Rear Ends & Components

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.

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

Concerned about a transmission swap? Our engine transmission compatibility checker will help confirm what you need to make it happen.

Transmission Interchange List Chevy, Ford, Mopar V8 Compatibility

Heath P. tells his story on how the passion for 'hot rodding' was instilled in him by his grandfather. From driving tractors on their family farm to becoming a Ford family, you are in for a good read.

For the Love of the Flathead V8

We can teach you some of the major differences between the Ford and GM-style T5 Flathead transmission adapter kits. We'll also walk you through choosing the correct parts in order to make this installation a breeze!

Adapting Tremec's Popular T5 5-speed Manual to Ford's Flathead V8 Engine

Expert techs Austin and Pat talk about some of the race car body parts we have to offer and the aerodynamic benefits they can add to your modified.

Speedway Tech Talk - MD3 Modified Aero Valance Kit & Rocker Panels

This Chevelle project gets rewired with a Speedway Motors 22 Circuit wiring kit.  Follow along as Jeff guides you through this application, starting with a good mounting location for the fuse box. Learn more on continuity, grounding and relays.

Installing a Speedway Motors 22 Circuit Wiring Kit

Speedway Motors just added some exciting new options to our line of racing harnesses.

New Racing Safety Products from Speedway Motors: Harnesses

Engine Family Facets

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Modified Winters Nostalgia V8 Speedway Motors Quick Change Gear Service Kits Parts

Modified Winters Nostalgia V8 Speedway Motors Quick Change Gear Service Kits Parts | Speedway Motors

Shop Modified Winters Nostalgia V8 Speedway Motors Quick Change Gear Service Kits Parts and get Free Shipping on orders over $175 at Speedway Motors.

Modified Winters Nostalgia V8 Speedway Motors Quick Change Gear Service Kits Parts

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Speedway Motors Quick Change Gear Service Kit, Polished LW Gears