🔧 Engine Displacement Calculator

Calculate engine displacement from bore, stroke, and cylinder count

Engine Displacement Calculator

Calculate engine displacement and cylinder volumes using different methods

Chevy 350 SBC
4" × 3.48"

8 cylinders

Chevy 454 BBC
4.25" × 4"

8 cylinders

Ford 302
4" × 3"

8 cylinders

Ford 351W
4" × 3.5"

8 cylinders

Pontiac 455
4.15" × 4.21"

8 cylinders

Mopar 440
4.32" × 3.75"

8 cylinders

Engine Design Characteristics

Oversquare (Bore > Stroke)

  • • Higher RPM capability
  • • Better breathing at high RPM
  • • More valve area per displacement
  • • Example: Ford 302 (4.00" × 3.00")

Square (Bore = Stroke)

  • • Balanced design
  • • Good all-around performance
  • • Moderate RPM capability
  • • Versatile for many applications

Undersquare (Stroke > Bore)

  • • Higher torque production
  • • Better low-end power
  • • Longer connecting rods possible
  • • Example: Pontiac 455 (4.15" × 4.21")

How to Use

1. Enter cylinder bore diameter

2. Input stroke length

3. Specify number of cylinders

4. View calculated displacement in CI and liters

Features

Bore and stroke calculations

Cubic inch to liter conversion

Multi-cylinder support

Engine design analysis