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Ford Engine Bore and Stroke Guide

The folks at Kiwi Customs built a stroked Ford 460 big block for their 1966 Mustang SEMA show car. You can read the details here. (Image/Summit Racing)

The Ford engine family tree has a lot of branches.

You’ve got the venerable Windsor small block, plus the 385-series and FE-series big block branches, along with a trio of 351 engines—the 351 Windsor, Cleveland, and Modified. We’re now into the overhead-cam Modular motors, which advanced the Ford V8 into the 21st century.

So, we thought it might be helpful to assemble a handy bore and stroke chart to help you understand common displacement configurations.

Then we’ll toss in a Ford stroker chart, so you can see some popular stroker combinations as well.

Ford Engine Bore and Stroke Chart

Ford Stock Engine Bore and Stroke Guide
Displacement
(Cubic Inches or Liters)
Bore
(Inches)
Stroke
(Inches)
Ford Windsor Family
2213.5002.870
2603.8002.870
2894.0002.870
3024.0003.000
351W4.0003.500
Ford 335 Family
351C4.0003.500
351M4.0003.500
4004.0004.000
Ford FE Family
3324.0003.300
3524.0003.500
3604.0503.500
3904.0503.780
4064.1303.784
4104.0503.980
4274.2303.780
4284.1303.980
Ford 385 Family
4294.3603.590
429CJ4.3603.590
4604.3603.850
Ford Modular Family
4.6L3.5523.543
5.0L (Cammer)3.7003.543
5.0L Coyote3.6293.647
5.4L3.5524.165
5.8L3.6814.230

Common Ford Stroker Configurations

Ever hear of a 319 Ford small block? How about a 393? Here are some common stroker engines made from the common Windsor small block and the Ford 460 385 series big block.

Ford Stroker Engine Bore and Stroke Guide
Stroked Displacement
(Cubic Inches)
Original
Displacement

(Cubic Inches)
Stock Bore
(Inches)
Overbore
(Inches)
CrankStroke
(Inches)
Rod
(Inches)
Notes
*********************************************************
3143024.0000.0303023.0755.250• Offset grind crank to 3.075"
• Requires aftermarket rods
• 400 hp maximum
3193024.0000.0303023.1255.400• Offset grind crank to 3.125"
• 500 hp maximum
3313024.0000.0303023.2405.200• Offset grind crank to 3.240"
• Requires aftermarket rods similar to 1.9L 4-cylinder rods
• 400 hp maximum
3373024.0000.0303023.3005.400• Offset grind crank to 3.300"
3423024.0000.0303023.3505.400• Offset grind crank to 3.350"
3473024.0000.0303023.4005.400• Offset grind crank to 3.400"
3573024.0000.0303023.5005.400None
372351W4.0000.030351W3.6406.200• Offset grind crank to 3.640"
• 600 hp maximum
375351W4.0000.030351W3.6806.125• Offset grind crank to 3.680"
• Requires aftermarket rods
• 575 hp maximum
377351W4.0000.030351W3.7006.200• Offset grind crank to 3.700"
• 550 hp maximum
393351W3.8500.030Aftermarket3.8506.209• Offset grind crank to 3.850"
• Won’t require cylinder bore notching
• No Mallory metal required for balancing
• Uses Chrysler 340/360 rods
408351W4.0000.030351W4.0006.250None
5124604.3600.0804604.1456.535, 6.768• Offset grind crank to 4.145"
• Turn rod journals to 2.200" with Big Chrysler 6.535" rod
• Turn rod journals to 2.375" with RB Chrysler 6.768" rod
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