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Ford 460, 514, 532 & 557
Reverse Dome Top and Flat Top
The pistons fit the
Super Cobra Jet and Kaase Heads

Factory Specs for the 460 Ford Stroke 3.850 Bore 4.360 Rod 6.605 long
By changing the Stroke you can come up with the following combinations.

514 Cu 4.150 stroke 4.390 bore 6.700 rod
532 Cu 4.300 stroke 4.390 bore 6.700 and 6.800 rod
557 Cu 4.500 stroke 4.390 bore 6.800 rod

532 - 6.800 Rod - Dish Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring
Set
Purchase Online
N/A
72cc
N/A
N/A
14804
$519
4.300
1.350
4.390
4.440
557
580
-
10.06
10.24
-
-
315-0025
315-0057
557 - 6.700 Rod - Dish Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring
Set
Purchase Online
N/A
72cc
N/A
N/A
14804
$519
4.500
1.350
4.390
4.440
557
580
-
10.48
10.67
-
-
315-0025
315-0057
532 - 6.800 Rod - Flat Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring
Set
Purchase Online
N/A
72cc
N/A
N/A
14792
$519
4.300
1.350
4.390
4.440
557
580
-
13.20
13.44
-
-
315-0025
315-0057
557 - 6.700 Rod - Flat Top
Part #
Stroke
C/H
Bore
Weight
Compression Ratio*
Ring
Set
Purchase Online
N/A
72cc
N/A
N/A
14792
$519
4.500
1.350
4.390
4.440
557
580
-
13.76
14.01
-
-
315-0025
315-0057

 

 

Ring Groove: 1/16, 1/16, 3/16
Dish Volume:
33.3cc / -3.0cc
Caution: ONLY fits SJC or Kaase P-51.
* Compression ratio computed with .010 deck and .038 head gasket.

* Forged of 2618 High Strength Alloy.
* Pins, Pin Fitting and Spiro-Locks Included.

SRS Pistons

Probe SRS forged pistons are designed for high performance street and most racing application. SRS pistons are available in a wide variety of designs, tuned to achieve the highest performance possible. Any combination from ultra light 2 barrel oval track to high performance street, to heavily boosted race cars will find Probe SRS Forged Pistons to be the perfect piston.

* 2618-t6 Forged Alloy
* Lightweight piston designs
* Tight running clearances
* Low drag skirt design
* Design specific valve relief's
* Lightweight wrist pins
* Full floating wrist pins
* Narrow piston rings
* Large variety of compression ratios

Anatomy Of A Better Piston

Anti-Detonation Grooves Reduces detonation by tempering pressure spikes, enhances piston life!
Pressure Equalization Channel Enhance ring seal, 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 micro finish 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 blow by!
Precision Forged of Aircraft Alloy Aluminum Our forgings are approximately 75% stronger than hypereutectic castings!
Fully CNC Machined Domes and valve relief's are fully CNC machined for consistency and precise clearance to valves and combustion chambers.

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

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About RPM Machine | Specials | Newsletter
RPM Machine-Performance Auto Parts
PO Box 281
Cedar Valley, Utah 84013
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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