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You are here: Home > Stroker Kits by VPE > Ford - 302 Windsor > 331 Cubic Inches - 3.250 Stroke > Flat Top
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20° Standard Wedge Twisted Wedge Twisted Wedge 11R


Flat top pistons in a 331 inch Ford engine will generally provide compression ratios in the 10.0:1 range which makes them a good option for engines with aluminum heads or larger cc iron heads. 450 Horsepower (flywheel) levels are typical with aftermarket heads and camshafts. 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.

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 Cranksaft, 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 piston from the list below, or select from the categories listed above.

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VPE Villain Stroker Kit
A_Villain Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_External_STD and Twisted Wedge Heads

P/N: 9000-11002
  • Cast Steel Crankshaft
  • 4340 Forged Steel I-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King SI Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 500+ Horsepower
Available Bore Sizes: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Villain Stroker Kit
A_Villain Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_External_Twisted Wedge

P/N: 9000-61002
  • Cast Steel Crankshaft
  • 4340 Forged Steel I-Beam Rods
  • Autotec Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King SI Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 500+ Horsepower
Available Bore Sizes: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Villain Stroker Kit
A_Villain Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_External_Twisted Wedge 11R

P/N: 9000-71002
  • Cast Steel Crankshaft
  • 4340 Forged Steel I-Beam Rods
  • Probe SRS Series 2618-t6 Forged Pistons
  • Nitride Steel Top _ Napier Second Ring Set
  • King SI Series Rod and Main Bearings
  • Balancing is available upon request
  • Components rated at 500+ Horsepower
Available Bore Sizes: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_External_STD Wedge

P/N: 9100-11007
  • 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: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_External_Twisted Wedge

P/N: 9100-61007
  • 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: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_External_Twisted Wedge 11R

P/N: 9100-71007
  • 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: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_Internal_STD Wedge

P/N: 9100-11011          Internal 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: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_Internal_Twisted Wedge

P/N: 9100-61011          Internal 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: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Vigilante Engine Kit
B_Vigilante Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_Internal_Twisted Wedge 11R

P/N: 9100-71011          Internal 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: 4.000, 4.030, 4.040
Stroke: 3.250 more info
VPE Vindicator Engine Kit
C_Vindicator Engine Kit_Ford 331_5.400 Rod_Flat_-4.0cc_External_STD Wedge

P/N: 9200-11016
  • 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
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.000, 4.030, 4.040
Stroke: 3.250 more info