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You are here: Home > Stroker Kits > Ford - 351 Windsor > 438 Cubic Inches (Big Bore) - 4.100 Stroke > Flat Top
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20° Standard Twisted Wedge Twisted Wedge 11R


Flat top pistons in a 438ci Ford Windsor will generally provide compression ratios in the 12.5:1 (61cc head) range which makes them a good option for competition engines with aluminum heads and larger than stock camshafts. They also work well in heads with larger combustion chambers. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to slightly over .600 valve lift. Alternative compression ratios are available on request.

Villain - Cast Steel Crankshaft, 4340 Forged Steel I-Beam Rods, Probe SRS Series Forged Pistons. Designed for stock replacement and mild performance applications.

Vigilante - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods, Probe SRS Series Forged Pistons. Designed for Street or Street and Strip performance applications.

Vindicator - 4340 Forged Steel Crankshaft, 4340 Forged Steel H-Beam Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications.

Vanquisher - 4340 Billet Steel Crankshaft, Premium Connecting Rods (w/ARP-2000), Probe PRS Series Forged Pistons. Designed for very serious Street or all out Strip applications. All components are Made in the USA.

Please select your stroker application from the list below, or select from the categories listed above.

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VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc__External_STD Wedge

P/N: 9101-11011
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King XP Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc__External_Twisted Wedge

P/N: 9101-61011
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King XP Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc__External_Twisted Wedge 11R

P/N: 9101-71011
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King XP Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc_Internal_STD Wedge

P/N: 9101-11019          Internal_STD Wedge Balance
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King XP Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc_Internal_Twisted Wedge

P/N: 9101-61019          Internal_STD Wedge Balance
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King XP Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc_Internal_Twisted Wedge 11R

P/N: 9101-71019          Internal_STD Wedge Balance
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King XP Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vindicator Engine Kit
C_Vindicator Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc_External_STD Wedge

P/N: 9201-11028
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods (w/ARP 2000)
  • Probe PRS Series 2618-t61 Forged Pistons
  • 52100 Bearing Steel Wrist Pins
  • .Nitride Steel Top - Napier Second Ring Set
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vindicator Engine Kit
C_Vindicator Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc_External_Twisted Wedge

P/N: 9201-61028
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods (w/ARP 2000)
  • Probe PRS Series 2618-t61 Forged Pistons
  • 52100 Bearing Steel Wrist Pins
  • .Nitride Steel Top - Napier Second Ring Set
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vindicator Engine Kit
C_Vindicator Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc_External_Twisted Wedge 11R

P/N: 9201-71028
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods (w/ARP 2000)
  • Probe PRS Series 2618-t61 Forged Pistons
  • 52100 Bearing Steel Wrist Pins
  • .Nitride Steel Top - Napier Second Ring Set
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info
VPE Vindicator Engine Kit
C_Vindicator Engine Kit_Ford 438W Big Bore_6.200 Rod_Flat_-4.0cc_Internal_STD Wedge

P/N: 9201-11036         Internal Balance
  • 4340 Forged Steel Crankshaft
  • 4340 Forged Steel H-Beam Rods (w/ARP 2000)
  • Probe PRS Series 2618-t61 Forged Pistons
  • 52100 Bearing Steel Wrist Pins
  • .Nitride Steel Top - Napier Second Ring Set
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.145, 4.155
Stroke: 4.100 more info