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You are here: Home > Stroker Kits > Ford - 351 Windsor > 446 Cubic Inches (Big Bore) - 4.170 Stroke > Flat Top

Flat top pistons in a 446 Ford engine will generally provide compression ratios in the 13.25:1 (61cc head) range which makes them a good option for 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.

Villain - Cast Crank, through-bolt rods, forged pistons, designed for stock replacement and mild performance applications.

Vigilante - 4340 Forged Crank, I-Beam rods, forged pistons, designed for Street or Street and Strip performance applications.

Vindicator - 4340 Forged Crank, H-Beam rods (ARP-2000), custom forged pistons designed for serious Street or all out Strip applications.

Vanquisher - 4340 Forged Crank, H-Beam rods (ARP-2000), custom forged pistons designed for serious Street or all out Strip applications. All components are Made in the USA.
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Probe Vigilante Engine Kit
Vigilante Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_External

P/N: 9101-11012
  • All Standard Wedge Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc H-Beam 4340 Forged Steel Rods
  • ARP-8740 Cap Screws
  • Probe SRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 5115 Carbon Steel Wrist Pins
  • Moly Top - Cast Second Ring set
  • External Balance (28 oz)
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info
Probe Vigilante Engine Kit
Vigilante Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_Internal

P/N: 9101-11020          Internal Balance
  • All Standard Wedge Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc H-Beam 4340 Forged Steel Rods
  • ARP-8740 Cap Screws
  • Probe SRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 5115 Carbon Steel Wrist Pins
  • Moly Top - Cast Second Ring set
  • Internal Balance
  • Components rated at 700+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info
Probe Vindicator Engine Kit
Vindicator Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_External_STD Wedge Head

P/N: 9201-11029
  • All Standard Wedge Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc 4340 Lightweight I-Beam Rods
  • ARP-2000 Cap Screws
  • Probe PRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Piston Rings
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • External Balance (28 oz)
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info
Probe Vindicator Engine Kit
Vindicator Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_External_Twisted Wedge 11R Head

P/N: 9201-71029
  • Twisted Wedge 11R Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc 4340 Lightweight I-Beam Rods
  • ARP-2000 Cap Screws
  • Probe PRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Piston Rings
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • External Balance (28 oz)
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info
Probe Vindicator Engine Kit
Vindicator Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_External_Twisted Wedge Head

P/N: 9201-61029
  • Twisted Wedge Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc 4340 Lightweight I-Beam Rods
  • ARP-2000 Cap Screws
  • Probe PRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Piston Rings
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • External Balance (28 oz)
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info
Probe Vindicator Engine Kit
Vindicator Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_Internal_STD Wedge Head

P/N: 9201-11037         Internal Balance
  • All Standard Wedge Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc 4340 Lightweight I-Beam Rods
  • ARP-2000 Cap Screws
  • Probe PRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Piston Rings
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • Internal Balance
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info
Probe Vindicator Engine Kit
Vindicator Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_Internal_Twisted Wedge 11R Head

P/N: 9201-71037         Internal Balance
  • Twisted Wedge 11R Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc 4340 Lightweight I-Beam Rods
  • ARP-2000 Cap Screws
  • Probe PRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Piston Rings
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • Internal Balance
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info
Probe Vindicator Engine Kit
Vindicator Engine Kit_Ford 446W Big Bore_Flat_-4.0cc_Internal_Twisted Wedge Head

P/N: 9201-61037         Internal Balance
  • Twisted Wedge Cylinder Heads
  • Probe 4.170 Stroke 4340 Forged Steel Crankshaft
  • Probe 6.200 ctc 4340 Lightweight I-Beam Rods
  • ARP-2000 Cap Screws
  • Probe PRS Series 2618-t61 Forged Pistons-1.205 C/H
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Piston Rings
  • Top or Lateral Gas Ports
  • AP Steel - Napier Second Ring Set
  • Internal Balance
  • Components rated at 850+ Horsepower
Available Bore Sizes: 4.125, 4.155
more info