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SRS Forged Pistons for  FORD 351-427 Windsor

  • 2618-t6 forged aluminum

  • Lightweight

  • Tight running clearance (.002 to .006)

  • Weight matched (+/- 2.5 grams)

  • Finished diameters +/- .00005

  • Fits standard AND Twisted Wedge heads
Our Tool Steel Wrist Pin Upgrade Is Now
Available At  A Substantially Reduced Cost!

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 61cc 64cc 68cc Part # Ring Set  

351W - 3.500 Stroke - 5.956 Rod - 1.772 C/H - .912 x 2.500 - 113 Gram Pin
4.030 580 11.09 10.69 10.32 9.86 12355-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 585 11.13 10.73 10.36 9.90 12355-040   Valve Relief Volume 4.0cc
4.060 590 11.22 10.81 10.44 9.98 12355-060    

383W - 3.750 Stroke - 6.250 Rod - 1.350 C/H - .927 x 2.500 - 117 Gram Pin
4.030 492 11.81 11.38 10.98 10.50 10670-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 494 11.85 11.42 11.02 10.54 10670-040   Valve Relief Volume 4.0cc
4.060 496 11.94 11.51 11.11 10.62 10670-060    

393W - 3.850 Stroke - 5.956 Rod - 1.600 C/H - .912 x 2.500 - 113 Gram Pin
4.000 508 11.95 11.52 11.11 10.62 10682-STD 315-0036 Ring Grooves 1/16 1/16 3/16
4.030 510 12.09 11.65 11.25 10.75 10682-030   Valve Relief Volume 4.0cc
4.040 512 12.14 11.70 11.29 10.79 10682-040    
4.060 514 12.24 11.79 11.38 10.88 10682-060    

393W - 3.850 Stroke - 6.200 Rod - 1.350 C/H - .927 x 2.500 - 117 Gram Pin
4.030 492 12.09 11.65 11.25 10.75 10670-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 494 12.14 11.70 11.29 10.79 10670-040   Valve Relief Volume 4.0cc
4.060 496 12.24 11.79 11.38 10.88 10670-060    

408W - 4.000 Stroke - 6.125 Rod - 1.350 C/H - .927 x 2.500 - 117 Gram Pin
4.030 492 12.53 12.07 11.65 11.13 10670-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 494 12.58 12.12 11.69 11.17 10670-040   Valve Relief Volume 4.0cc
4.060 496 12.67 12.21 11.78 11.26 10670-060    

408W - 4.000 Stroke - 6.200 Rod - 1.280 C/H - .927 x 2.500 - 117 Gram Pin
4.030 484 12.53 12.07 11.65 11.13 12357-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 488 12.58 12.12 11.69 11.17 12357-040   Valve Relief Volume 4.0cc
4.060 496 12.67 12.21 11.78 11.26 12357-060    

428W - 4.000 Stroke - 6.200 Rod - 1.290 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 12.91 12.45 12.02 11.49 14745-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 13.06 12.59 12.15 11.62 14745-030   Valve Relief Volume 4.5cc

408W - 4.000 Stroke - 6.250 Rod - 1.235 C/H - .927 x 2.500 - 117 Gram Pin
4.030 475 12.53 12.07 11.65 11.13 10672-030 315-0036 Ring Grooves 1/16 1/16 3mm
4.040 477 12.58 12.12 11.69 11.17 10672-040   Valve Relief Volume 4.0cc
4.060 479 12.67 12.21 11.78 11.26 10672-060    

428W - 4.000 Stroke - 6.250 Rod - 1.240 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 12.91 12.45 12.02 11.49 14716-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 13.06 12.59 12.15 11.62 14716-030   Valve Relief Volume 4.5cc

418W - 4.100 Stroke - 6.200 Rod - 1.235 C/H - .927 x 2.500 - 117 Gram Pin
4.030 475 12.82 12.35 11.91 11.38 10672-030 315-0049 Ring Grooves 1/16 1/16 3mm
4.040 477 12.87 12.39 11.96 11.43 10672-040   Valve Relief Volume 4.0cc
4.060 479 12.97 12.49 12.05 11.52 10672-060    

438W - 4.100 Stroke - 6.200 Rod - 1.240 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 13.21 12.73 12.29 11.75 14716-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 13.36 12.88 12.43 11.89 14716-030   Valve Relief Volume 4.5cc

427W - 4.170 Stroke - 6.125 Rod - 1.280 C/H - .927 x 2.500 - 117 Gram Pin
4.030 484 13.03 12.54 12.10 11.56 12357-030 315-0049 Ring Grooves 1/16 1/16 3mm
4.040 488 13.07 12.59 12.15 11.61 12357-040   Valve Relief Volume 4.0cc
4.060 496 13.17 12.69 12.24 11.70 12357-060    

446W - 4.170 Stroke - 6.125 Rod - 1.290 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 13.42 12.93 12.48 11.93 14745-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 13.58 13.08 12.63 12.07 14745-030   Valve Relief Volume 4.5cc

446W - 4.170 Stroke - 6.250 Rod - 1.155 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 13.42 12.93 12.48 11.93 14745-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 13.58 13.08 12.63 12.07 14745-030   Valve Relief Volume 4.5cc

454W - 4.250 Stroke - 6.250 Rod - 1.115 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 13.66 13.06 12.70 12.14 14745-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 13.82 13.31 12.85 12.28 14745-030   Valve Relief Volume 4.5cc
Back To:
 PROBE FORGED PISTONS

Dish Top
SRS Forged Pistons for FORD 351-427 Windsor

  • 2618-t6 forged aluminum

  • Lightweight

  • Tight running clearance (.002 to .006)

  • Weight matched (+/- 2.5 grams)

  • Finished diameters +/- .00005

  • Fits standard AND Twisted Wedge heads

 
Our Tool Steel Wrist Pin Upgrade Is Now
Available At  A Substantially Reduced Cost!

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 61cc 64cc 68cc Part # Ring Set  

351W - 3.500 Stroke - 5.956 Rod - 1.772 C/H - .912 x 2.500 - 113 Gram Pin
4.030 540 9.08 8.82 8.58 8.28 12358-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 545 9.12 8.86 8.61 8.31 12358-040   Dish Volume 22.0cc
4.060 549 9.19 8.93 8.68 8.37 12358-060    

383W - 3.750 Stroke - 6.250 Rod - 1.350 C/H - .927 x 2.500 - 117 Gram Pin
4.030 428 9.92 9.63 9.35 9.01 10676-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 430 9.96 9.67 9.39 9.05 10676-040   Dish Volume 19.3cc
4.060 432 10.04 9.74 9.46 9.12 10376-060    

383W - 3.850 Stroke - 5.956 Rod - 1.600 C/H - .912 x 2.500 - 113 Gram Pin
4.000 526 9.06 8.82 8.60 8.32 12349-Std 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 528 9.17 8.93 8.70 8.41 12349-030   Dish Volume 30.0cc
4.060 530 9.20 8.96 8.73 8.45 12349-040    

393W - 3.850 Stroke - 5.956 Rod - 1.600 C/H - .912 x 2.500 - 113 Gram Pin
4.000 471 10.51 10.18 9.87 9.49 10684-Std 315-0036 Ring Grooves 1/16 1/16 3/16
4.030 487 10.63 10.30 9.99 9.60 10684-030   Dish Volume 15.0cc
4.040 516 10.68 10.34 10.03 9.64 10684-040    
4.060 534 10.76 10.42 10.11 9.72 10684-060    

393W - 3.850 Stroke - 6.200 Rod - 1.350 C/H - .927 x 2.500 - 117 Gram Pin
4.030 428 10.16 9.86 9.58 9.23 10676-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 430 10.20 9.90 9.61 9.26 10676-040   Dish Volume 19.3cc
4.060 432 10.28 9.98 9.69 9.34 10676-060    

408W - 4.000 Stroke - 6.125 Rod - 1.350 C/H - .927 x 2.500 - 117 Gram Pin
4.030 428 10.52 10.20 9.91 9.55 10676-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 430 10.56 10.25 9.95 9.58 10676-040   Dish Volume 22.0cc
4.060 432 10.64 10.33 10.03 9.66 10676-060    

408W - 4.000 Stroke - 6.200 Rod - 1.280 C/H - .927 x 2.500 - 117 Gram Pin
4.030 435 10.24 9.94 9.66 9.32 12360-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 437 10.28 9.98 9.70 9.35 12360-040   Dish Volume 22.0cc
4.060 439 10.36 10.06 9.78 9.43 12360-060    

428W - 4.000 Stroke - 6.200 Rod - 1.290 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 10.34 10.05 9.78 9.44 14746-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 10.46 10.16 9.89 9.55 14746-030   Dish Volume 24.8cc

408W - 4.000 Stroke - 6.250 Rod - 1.235 C/H - .927 x 2.500 - 117 Gram Pin
4.030 418 10.24 9.94 9.66 9.32 10674-030 315-0049 Ring Grooves 1/16 1/16 3mm
4.040 420 10.28 9.98 9.70 9.35 10674-040   Dish Volume 22.0cc
4.060 422 10.36 10.06 9.78 9.43 10674-060    

428W - 4.000 Stroke - 6.250 Rod - 1.240 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 10.34 10.05 9.78 9.44 14717-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 10.46 10.16 9.89 9.55 14717-030   Dish Volume 24.8cc

438W - 4.100 Stroke - 6.200 Rod - 1.235 C/H - .927 x 2.500 - 117 Gram Pin
4.030 418 10.47 10.16 9.88 9.52 10674-030 315-0049 Ring Grooves 1/16 1/16 3mm
4.040 420 10.51 10.20 10.92 9.56 10674-040   Dish Volume 22.0cc
4.060 422 10.59 10.28 10.00 9.64 10674-060    

428W - 4.100 Stroke - 6.200 Rod - 1.240 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 10.57 10.27 9.99 9.65 14717-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 10.69 10.39 10.11 976 14717-030   Dish Volume 24.8cc

427W - 4.170 Stroke - 6.125 Rod - 1.280 C/H - .927 x 2.500 - 117 Gram Pin
4.030 435 10.63 10.32 10.03 9.67 12360-030 315-0036 Ring Grooves 1/16 1/16 3/16
4.040 437 10.67 10.36 10.07 9.71 12360-040   Dish Volume 22.0cc
4.060 439 10.76 10.44 10.15 9.79 12360-060    

446W - 4.170 Stroke - 6.125 Rod - 1.290 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 10.73 10.43 10.15 9.80 14746-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 10.86 10.55 10.27 9.91 14746-030   Dish Volume 24.8cc

446W - 4.170 Stroke - 6.250 Rod - 1.155 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 10.33 10.05 9.79 9.46 14428-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 10.45 10.17 9.90 9.57 14428-030   Dish Volume 28.9cc

454W - 4.250 Stroke - 6.250 Rod - 1.115 C/H - .927 x 2.500 - 117 Gram Pin (will not fit Twisted Wedge Heads)
4.125 TBA 10.31 10.04 9.79 9.47 14432-Std CR1002 Ring Grooves 1/16 1/16 3mm
4.155 TBA 10.44 10.16 9.90 9.58 14432-030   Dish Volume 30.9cc
Back To:
 PROBE FORGED PISTONS