Automotive Technical and Reference Information

Our automotive technical and reference resources are here to make your life easier and 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…

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Technical Articles

How To & DIY

How To Determine Your Chevrolet Water Pump Type ~ Long or Short

May 19, 2017 Roadkill Customs How To & DIY, Technical Info

A quick way to check if you have a long or short water pump is to stick your fingers behind the timing cover, you can’t with a short pump. [More…]

Technical Info

Popular Manual Transmission Dimensions

January 26, 2021 Roadkill Customs Technical Info

T5, T10, T56, A-833, Toploader Transmission Measurements ModelABCDEF GM Super T10, Muncie, Saginaw6.3″14.2″23″N/AN/A3.75″ GM T5 (V8)6.3″16″25″19″21.2″3.75″ GM T56, F-car (production)4.9″21″26.4″21.1″23.9″3.75″ GM T56, F-car (aftermarket)**6.3″21.5″27″21.6″21.6″3.75″ Ford T56.94″14.5″24.125″N/AN/A5.5″ Ford Toploader6.38″13.25″24.125″N/AN/A5.5″ Mopar A-8337.38″15.28″27.01″N/AN/A2″ or 2.76″ **Dimensions B through [More…]

Technical Info

Horsepower vs Torque ~ What’s The Difference?

June 8, 2020 Roadkill Customs Technical Info

Torque is a force acting at a radius, while horsepower simply incorporates time into the equation. Here’s a simple explanation. [More…]

References, Charts, and Part Identification

Math, Conversions, and Equivalents

• Automotive Math Formulas and Conversions
• Decimal Equivalents of Common Fractions
• Equivalent of Wire and Sheet Metal Gauges in Inches

Part and Vehicle Identification

• Axle Flange Housing Identification
• Differential Identification Chart
• Early Ford Beam Axle Identification and Dimensions
• Popular Automatic Transmission Identification Chart

• 1902-2007 GM Vehicle Specification Sheets
• 1946-53 American Classic Car Technical Sheets
• Classic Vehicle Identification Sheets

• GM Body Style Codes
• Mopar Body Style Codes

• How To Decode Ford Part Numbers

• Chevrolet Engine Block Numbers
• Ford Engine Block Numbers
• Mopar Engine Block Numbers

Engine

• Alternator Wire Gauge Size Chart
  • How To Test and Troubleshoot Alternators
• Calculate the Size of Carburetor Needed in CFM
• Connecting Rod Ratios
• Firing Orders, Distributor Location, Rotation Direction
  • How To Set Ignition Timing
• LS Engine Specifications and History
  • LS Swap Essentials: What You Need To Know
  • There’s an LS Engine Swap for Every Build Budget

• Popular V8 Engine Swap Dimension Chart
• OBD / OBD-II Diagnostic Trouble Code Look-Up

• More Engine Information and Articles…

Transmission

• Popular Automatic Transmission Identification Chart
• Popular Automatic Transmission Dimensions
• Popular Manual Transmission Dimensions
• Transmission Gear Ratio Chart
• Transmission Cross Reference

• More Transmission Information and Articles…

• Engine / Transmission / Chassis Donor Search

Sizing and Dimensions

• Determining Proper Exhaust Tubing Size
• Determining Steering Spline Size
• Guide to Wires and Fuses

• Old Tire Size Guide: Radials, Poly/Fibers, Bias-Ply’s, Cheater & Drag Slicks
• Rear-End Widths of Classic American Cars
• Wheelbase Measurement Cross-Reference
• Wheelbase Measurements for Popular Classic Cars
• Wheel Bolt Pattern Cross Reference

• Early Ford Beam Axle Identification and Dimensions
• Popular Automatic Transmission Dimensions
• Popular Manual Transmission Dimensions
• Popular V8 Engine Swap Dimension Chart

• More Measurements and Dimensions…

Hot Rod Glossary, Terms

• Glossary of Automotive Paint Terms
• Glossary of Hot Rod of Terms
• Glossary of Racing Terms

• Traditional Hot Rod Reference Books You Should Own

Calculators

• Calculate the Size of Carburetor Needed in CFM
• Differential Gear Ratio Calculator
• Engine Displacement Calculator
• Engine Compression Ratio Calculator
• Horsepower Gain from Additional Blower Pressure Calculator
• Speed Potential Calculator for Ring Gear and Pinion Changes
• Tire Change / Speedometer Change Calculator

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