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Ford Small Block

 

302 - 5.155 Rod - Flat Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring
Set
Purchase Online
58cc
61cc 64cc 68cc
P3021F
$369
3.000
1.540
4.030
4.040
540
542
9.65
9.68
9.30
9.34
8.98
9.02
8.60
8.63
40564CP

Ring Groove: 5/64 - 5/64 - 3/16
Valve Relief Volume:
-4.0cc
* Compression ratio computed with .010 deck and .038 head gasket.

 

302 - 5.090 Rod - Flat Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring Set
Purchase Online
58cc
61cc 64cc 68cc
P2482F
$329
3.000

1.605

4.000
4.030
4.040
545
550
552
9.54
9.65
9.68
9.20
9.30
9.34
8.88
8.98
9.02
8.50
8.60
8.63
40564CP

Ring Groove: 5/64 - 5/64 - 3/16
Valve Relief Volume: -4.0 cc
* Compression ratio computed with .010 deck and .038 head gasket.

 

5.0L - 5.090 Rod - Flat Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring Set
Purchase Online
58cc
61cc 64cc 68cc
P2488F
$350
3.000

1.619

4.000
4.030
4.040
536
553
559
9.54
9.65
9.68
9.20
9.30
9.34
8.88
8.98
9.02
8.50
8.60
8.63
CR-6434

Ring Groove: 1.5, 1.5, 4.0mm
Valve Relief Volume: -4.0 cc
* Compression ratio computed with .010 deck and .038 head gasket.

 

351C - 5.788 Rod - Flat Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring Set
Purchase Online
58cc
61cc 64cc 68cc
P2379F
$369
3.500

1.647

4.020
4.030
4.040
582
586
594
11.18
11.23
11.27
10.40
10.44
10.48
9.93
9.97
10.01
9.14
9.17
9.21
40564CP

Ring Groove: 5/64 - 5/64 - 3/16
Valve Relief Volume: -4.0 cc
* Compression ratio computed with .010 deck and .038 head gasket.

 

393W - 5.956 Rod - Flat Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring Set
Purchase Online
58cc
61cc 64cc 68cc
P2482F
$329
3.850

1.605

4.000
4.030
4.040
545
550
552
11.95
12.09
12.14
11.52
11.65
11.70
11.11
11.25
11.29
10.62
10.75
10.79
40564CP

Ring Groove: 5/64 - 5/64 - 3/16
Valve Relief Volume: -4.0 cc
* Compression ratio computed with .010 deck and .038 head gasket.

 

302 - 5.090 Rod - Dish Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring Set
Purchase Online
58cc
61cc 64cc 68cc
P2305F
$350
3.000

1.605

4.000
4.030
4.040
516
520
523
8.67
8.77
8.80
8.39
8.49
8.52
8.14
8.23
8.26
7.82
7.91
7.94
40564CP

Ring Groove: 5/64 - 5/64 - 3/16
Dish Volume: -12.2 cc
* Compression ratio computed with .010 deck and .038 head gasket.

 

351W - 5.956 Rod - Dish Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring Set
Purchase Online
58cc
61cc 64cc 68cc
P2446F
$350
3.500

1.772

4.030
4.040
4.060
571
581
591
9.66
9.70
9.78
9.37
9.40
9.48
9.09
9.13
9.20
8.75
8.78
8.85
40564CP

Ring Groove: 5/64 - 5/64 - 3/16
Dish Volume: -15.9 cc
* Compression ratio computed with .010 deck and .038 head gasket.

 

393W - 5.956 Rod - Dish Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring Set
Purchase Online
58cc
61cc 64cc 68cc
P2305F
$350
3.850

1.605

4.000
4.030
4.040
516
520
523
10.84
10.97
11.01
10.49
10.61
10.65
10.16
10.28
10.32
9.75
9.87
9.91
40564CP

Ring Groove: 5/64 - 5/64 - 3/16
Dish Volume: -12.2 cc
* Compression ratio computed with .010 deck and .038 head gasket.

FPS Pistons

Probe FPS Forged Pistons are designed for heavy duty (towing, etc) or high performance street car, trucks, marine and some racing application. FPS pistons are far stronger than hypoeutectic or hypereutectic cast pistons. Boost and nitrous oxide are compatible.

  • VMS-75 High Silicon Aluminum
  • Tight piston to wall clearance
  • Reinforce piston skirts (eliminated collapsed piston skirts)
  • Increased valve clearance
  • Reduced piston weight
  • Offset wrist pins
  • Press fit piston pins

Anatomy Of A Better Piston

Anti-Setonation Grooves Reduces detonation by tempering pressure spikes, enhances piston life!
Pressure Equalization Channel Enhance ring eal, producing more power and enhancing fuel economy!
Slotted Drain Back Holes Slotted drain back holes prevent oil from collecting in the oil ring groove.
CNC Diamond Pinhole Finish Produces ultra straight pinholes and outstanding microfinish for extended life and durability.
Slotted Pin Oiling Slotted pin oiling enhances wrist pin and pin holes oiling for durability and long life.
CNC Diamond Skirt Finishing Retains oil on the piston skirt providing superior anti scuffing capability! Also reduces piston noise!
Ultra-Tight Running Clearance Increases piston and piston ring life and reduces blowby!
Precision Forged of Aircraft Alloy Aluminum Our forgings are approximately 75% stronger than hypoeutectic or hypereutectic castings!
Fully CNC Machined Domes and valve reliefs are fully CNC machined for consistency and precise clearance to valves and combustion chambers.

 
Call 1-877-354-3812
to order your Parts Today!

Contact us Via Email

About RPM Machine | Specials | Newsletter
RPM Machine-Performance Auto Parts
146 Ea 13065 So Suite F
Draper Utah 84020
We carry parts from scat, je, wiseco, ross, crower, callies, eagle, cat, eagle
Most of our rotating assemblies include forged pistons
and 4340 steelcranks


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