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Flat Top Dish Top

Flat Top
FPS Forged Pistons
for Ford 393W

  • VMS75 high silicon forged aluminum

  • Increased valve clearance

  • Lightweight

  • Tight running clearance (.002 to .006)

  • Weight matched (+/- 2.5 grams)

  • Finished diameters +/- .00005

 

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 PROBE FORGED PISTONS
Compression Ratio computed with .010 deck and .038 head gasket at bore +.125" (weights and compression ratios are approximate)
    Compression Ratio      
Bore Weight 58cc 64cc 68cc 76cc Part # Ring Set  

393W - 3.850 Stroke - 5.956 Rod- 1.605 C/H - .912 x 3.000 Press Fit Pin
4.000 545 11.95 11.52 11.11 10.62 P2482F-030 40564CP Ring Grooves 5/64 5/64 3/16
4.030 550 12.09 11.65 11.25 10.75

P2482F-030

 40564CP-030 Valve Relief  Volume 4.0cc
4.040 552 12.14 11.70 11.29 10.79 P2482F-040 40564CP-040  

393W - 3.850 Stroke - 5.956 Rod- 1.619 C/H - .912 x 3.000 Press Fit Pin
4.000 536 11.95 11.52 11.11 10.62 P2488F-Std 40564CP Ring Grooves 1.5 1.5 4.0mm
4.030 553 12.09 11.65 11.25 10.75

P2488F-030

 40564CP-030 Valve Relief  Volume 4.0cc
4.040 559 12.14 11.70 11.29 10.79 P2488F-040 40564CP-040  
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 PROBE FORGED PISTONS

Dish Top
FPS Forged Pistons

for Ford 351W

  • VMS75 high silicon forged aluminum

  • Increased valve clearance

  • Lightweight

  • Tight running clearance (.002 to .006)

  • Weight matched (+/- 2.5 grams)

  • Finished diameters +/- .00005
 

Back To:
 PROBE FORGED PISTONS
Compression Ratio computed with .010 deck and .038 head gasket at bore +.125" (weights and compression ratios are approximate)
    Compression Ratio      
Bore Weight 58cc 64cc 68cc 76cc Part # Ring Set  

351W - 3.500 Stroke - 5.956 Rod- 1.772 C/H - .912 x 3.000 Press Fit Pin
4.030 571 9.66 9.37 9.09 8.75 P2446F-030 40564CP-030 Ring Grooves 5/64 5/64 3/16
4.040 581 9.70 9.40 9.13 8.78 P2446F-040 40564CP-040 Dish Volume 15.9cc
4.060 591 9.78 9.48 9.20 8.85 P2446F-060 40564CP-060  

393W - 3.850 Stroke - 5.956 Rod- 1.772 C/H - .912 x 3.000 Press Fit Pin
4.000 516 10.84 10.49 10.16 9.75 P2305F-Std 40564CP Ring Grooves 5/64 5/64 3/16
4.030 520 10.97 10.61 10.28 9.87 P2305F-030 40564CP-030 Dish Volume 12.2cc
4.040 523 11.01 10.65 10.32 9.91 P2305F-040 40564CP-040  
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 PROBE FORGED PISTONS