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

Learn about the specs of the V8 Ford Flathead Engine. Check out these Flathead firing order diagrams and torque specifications chart created by the experts.

Ford Flathead V8 Firing Order and Specs

In this Tech Tip, a returning customer asks for advice on wiring harnesses for his ’29 Ford roadster project.

Wiring Harnesses for a 1929 Ford

Over several generations of small block Chevy (and big block Chevy) engines there have been several changes that dictate what flexplate works with them. We’ll help you determine the correct flexplate for your Chevy engine in this buyer’s guide.

Small Block and Big Block Chevy Engine Flexplate Guide

In this Tech Tip, John answers a customer question about the Speedway 12 Circuit Wiring Harness.

Speedway Economy 12 Circuit Wiring Harness

Upgrading to electronic ignition is a huge improvement in performance, reliability, and lower maintenance that you can add to just about any engine your project may be running. Learn all about your electronic ignition choices in this buyer's guide.

Benefits of Electronic Ignition System Upgrades

Small block Chevy V8 or the modern LS V8? Which one comes out on top as the best engine to swap into your ride?

SBC vs LS Showdown | Dimensions for Swaps, Weight, HP, Specs

Kevin W. walks through each step of installing a new alternator bracket on a 454 Big Block Chevy.

Alternator Bracket Install on a 454 Big Block Chevy

A guide on how to install a universal wiring harness in a car. Read tips on properly wiring taillights, headlights, gauges, ignition switch, steering column and more.

Universal Wiring Harness Instructions - Installation

Making great horsepower on a budget is the LS engine family’s claim to fame, but just like any other engine, the more power you ask of it the more you’ll need to spend.

6.0 LS Build Combinations: Recipes for 500-1,000 HP

Engine Family Facets

707063f6-5cf0-44d1-8e1f-49059e48addf

3fe4cfeb-d42e-4b60-a312-2940d324f962

Try Shopping by the Make of your Vehicle:

Ford 385 Series Big Block Wiring Harness and Components

Ford 385 Series Big Block Wiring Harness and Components | Speedway Motors

Shop Ford 385 Series Big Block Wiring Harness and Components and get Free Shipping on orders over $175 at Speedway Motors.

Painless 10123 1966-1976 Ford Muscle Car 21 Circuit Wiring Harness

Sold in Quantity

Number of Circuits

Notes

MFG. Part #

GTIN Code

Fuse Block Included

Compatible with GM Column

Ignition Key Location

Fuse Style

Harness Length

66-76 Ford, 21 Number of Circuits, Fuse Block Included

FAST 301204 XFI Fuel Injector Wiring Harness, Ford 289/302/FE/429/460

Injection Style

Fuel Injection Style

Multi-port Injection Style

Holley 550-944 Terminator X Max Ford MPFI Kit

MAP Sensor Included

Transmission Control

Injector Connector

Tuner Style

Throttle Style

Oxygen Sensor Style

4R70W, Jetronic / Minitimer (EV1) Injector Connector

Best Match

Price High To Low

Price Low To High

Highest Rated

New Arrivals

Ford 385 Series Big Block Wiring Harness and Components

Part

Brand

Application

Department

Transmission Family

Availability

Engine Code

Displacement

Discounts

Make

Platform

Price

Customer Rating

Products

Painless 10123 1966-1976 Ford Muscle Car 21 Circuit Wiring Harness

FAST 301204 XFI Fuel Injector Wiring Harness, Ford 289/302/FE/429/460

Holley 550-944 Terminator X Max Ford MPFI Kit

Try Shopping by the Make of your Vehicle: