Our automotive technical and reference resources are here to make your life easier — to help you find answers faster. From decimal/fraction charts to interactive calculators; from quick look-ups and cross-reference tools to general automotive information and videos to guide you through…
Reference Info ~ Look-Ups & Cross References ~ Calculators
- Glossary of Hot Rod of Terms
Don’t sound like you don’t know what you’re talking about next time at a car show, cruise-in or meet… - Glossary of Racing Terms
Don’t sound like you don’t know what you’re talking about next time at the track. These are the terms you need to know…
Refrence, Charts and Part Identification
- Automotive Math Formulas and Conversions
RPM = MPH X Gear Ratio X 336 divided by Tire Diameter (inches) Rolling diameter of a tire differs… - Axle Flange Housing Identification
Chevrolet, Ford, Oldsmobile, Pontiac — they all use different axle flanges. The ability to identif… - Decimal Equivalents of Common Fractions
Note: Decimals marked with * are NOT EXACT and have been rounded to 6 decimal places. (a… - Differential Identification Chart
Your differential is the set of gears that allows your vehicle’s driven wheels to revolve at diffe… - Equivalent of Wire and Sheet Metal Gauges in Inches
Equivalents of Wire and Sheet Metal Gauges in Inches — Gauge #, Sheet Metal Inch Equivalent, Wire … - Popular Automatic Transmission Dimensions
So you want to replace the transmission in your classic or custom? How do you know what will even fi… - Popular Automatic Transmission Identification Chart
See Also: Transmission Cross Reference Database Transmission Dimensions Transmission Rati… - Transmission Gear Ratio Chart
Transmission Gear Ratio Chart ~ Gear Ratios are listed for many popular transmissions… See Also: …
Look-Ups and Cross References
- Connecting Rod Ratios
Connecting Rod ratio is the mathematical relationship between the overall length of the connecting… - Early Ford Beam Axle Identification and Dimensions
The different early Ford axles are easy to identify by referring to the picture below, which was… - Firing Orders
MSD Ignition created this helpful chart that display many common V8 firing orders and distrubutor… - OBD / OBD-II Diagnostic Trouble Code Look-Up
- Rear-End Widths of Classic American Cars
- Connecting Rod Ratios
- 1946-53 American Classic Car Technical Sheets
The following American Classic Car Technical Sheets show exploded views of all major body parts and …
- Chevrolet Engine Block Numbers
All engines are stamped with an engine ID code, consisting of assembly plant code, production date a… - Ford Engine Block Numbers
Note: A majority of FE blocks have either a ‘352’ or a backwards ‘501’ cast into the front of the bl… - Mopar Engine Block Numbers
Mopar Engine Block Casting Numbers — The list covers a wide range of engines including the popular… - GM Body Style Codes
This List of GM platforms contains automobile platform used both at present and historically by Gene… - Mopar Body Style Codes
Body Series Make Mopar Model A-Body Dodge 61 Lancer 63-76 Dart 71-72 Demon …
Calculators
- Differential Gear Ratio Calculator
Enter the maximum potential safe engine RPM. Enter the tire size diameter and the target vehicle…
- Engine Displacement Calculator
This calculator determines the displacement of the engine by two methods; selecting the engine to ge… - Horsepower Gain from Additional Blower Pressure Calculator
Enter the anticipated blower pressure. Enter the normally aspirated horsepower at the flywheel … - Speed Potential Calculator for Ring Gear and Pinion Changes
This calculator is designed to give the potential speed values of a vehicle, based on the RPM of… - Tire Change / Speedometer Change Calculator
This calculator is designed to give information related to tire size changes and the general impact … - Wheel, Tire and Fender Fitment Calculator
Wheel, Tire and Fender Fitment Calculator Calculate Wheel Fitment, Tire Stretch and Rolling Radius.…
- Alternator Wire Gauge Chart
Any time you upgrade your alternator you should strongly consider upgrading the gauge (size) of the … - Guide to Wires and Fuses
See Also: Wiring Hot Rod Lights Wiring an Electric Fuel Pump Basic Ford Hot Rod Wiring Di…
- How To Determine Proper Exhaust Tubing Size
This table below was supplied by Flowmaster. It’s intended as a basic reference guide to give you an… - How To Determine Your Chevrolet Water Pump Type
The quick and dirty way to determine if you have a long or short water pump is to try and stick your… - How To Make Sense of Synthetic Lubricants
All of us have seen countless ads telling us to change our engine oil every 3000 miles. Some of us h… - Lead-Acid Batteries Vs. Deep Cycle Batteries
All batteries are not created equal; different vehicles need different batteries. There are two c… - Mechanical Fuel Pumps vs. Electric Fuel Pumps
A fuel pump is a basic essential component that is a part of every vehicle. Fuel has to be pumped fr…