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You are here: Home > Pistons > Probe Forged Pistons > PRS - Professional Race Series > Ford > Ford 351 Windsor > Flat Top
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Standard 20° Wedge Head Twisted Wedge Head Twisted Wedge 11R Head


Flat top pistons in a Ford 351 to 454 engine will generally provide compression ratios in the 10.5 to 13.5:1 range which makes them a good option for engines with aluminum heads and larger than stock camshafts. Valve reliefs are configured to work with most types of standard and aluminum cylinder heads and will normally fit camshafts to well over .600 valve lift. They are available for and Standard Style Wedge heads, as well as Twisted Wedge and Twisted Wedge 11R.

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Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 351W_Flat_1.772 C/H_4.000 Base Bore_-4.0cc_.912 Pin_Standard 20° Wedge Head_Gas Ported

P/N: 8001-1-12355
  • V/R for Standard 20° Wedge Head
  • 1.772 Compression Height
  • 3.500 Stroke
  • 5.956 Rod Length
  • .912 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 351W_Flat_1.772 C/H_4.000 Base Bore_-4.0cc_.912 Pin_Twisted Wedge 11R Head_Gas Ported

P/N: 8001-1-72355
  • V/R for Twisted Wedge 11R Head
  • 1.772 Compression Height
  • 3.500 Stroke
  • 5.956 Rod Length
  • .912 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 351W_Flat_1.772 C/H_4.000 Base Bore_-4.0cc_.912 Pin_Twisted Wedge Head_Gas Ported

P/N: 8001-1-62355
  • V/R for Twisted Wedge Head
  • 1.772 Compression Height
  • 3.500 Stroke
  • 5.956 Rod Length
  • .912 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 393W_Flat_1.315 C/H_4.000 Base Bore_-4.0cc_.927 Pin_Standard 20° Wedge Head_Gas Ported

P/N: 8001-1-15244
  • V/R for Standard 20° Wedge Head
  • 1.315 Compression Height
  • 3.850 Stroke
  • 6.250 Rod Length
  • .927 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 393W_Flat_1.315 C/H_4.000 Base Bore_-4.0cc_.927 Pin_Twisted Wedge 11R Head_Gas Ported

P/N: 8001-1-75244
  • V/R for Twisted Wedge 11R Head
  • 1.315 Compression Height
  • 3.850 Stroke
  • 6.250 Rod Length
  • .927 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 250 H/P
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 393W_Flat_1.315 C/H_4.000 Base Bore_-4.0cc_.927 Pin_Twisted Wedge Head_Gas Ported

P/N: 8001-1-65244
  • V/R for Twisted Wedge Head
  • 1.315 Compression Height
  • 3.850 Stroke
  • 6.250 Rod Length
  • .927 Wrist Pin Diameter
  • .043 .043 3.0 Ring Grooves
  • Nitrous - 250 H/P
  • Top Gas Ports
  • Forced Induction - 12 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 393W_Flat_1.365 C/H_4.000 Base Bore_-4.0cc_.927 Pin_Standard 20° Wedge Head_Gas Ported

P/N: 8001-1-10670
  • V/R for Standard 20° Wedge Head
  • 1.365 Compression Height
  • 4.000 Stroke
  • 6.200 Rod Length
  • .927 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 393W_Flat_1.365 C/H_4.000 Base Bore_-4.0cc_.927 Pin_Twisted Wedge 11R Head_Gas Ported

P/N: 8001-1-70670
  • V/R for Twisted Wedge 11R Head
  • 1.365 Compression Height
  • 3.850 Stroke
  • 6.125 Rod Length
  • .927 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 393W_Flat_1.365 C/H_4.000 Base Bore_-4.0cc_.927 Pin_Twisted Wedge Head_Gas Ported

P/N: 8001-1-60670
  • V/R for Twisted Wedge Head
  • 1.365 Compression Height
  • 3.850 Stroke
  • 6.200 Rod Length
  • .927 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info
Probe Forged Pistons
Probe PRS Series Forged Pistons_Ford 393W_Flat_1.600 C/H_4.000 Base Bore_-4.0cc_.912 Pin_Standard 20° Wedge Head_Gas Ported

P/N: 8001-1-15274
  • V/R for Standard 20° Wedge Head
  • 1.600 Compression Height
  • 3.850 Stroke
  • 5.956 Rod Length
  • .912 Wrist Pin Diameter
  • 52100 Bearing Steel Wrist Pins
  • .043 .043 3.0 Ring Grooves
  • Top or Lateral Gas Ports
  • Nitrous - 300 H/P
  • Forced Induction - 15 lbs
Available Bore Sizes: 4.000, 4.030, 4.040, 4.060
Price includes pistons, pins, locks and oil rail spacers (as required) more info