Pontiac 400, 428 & 455
Flat Top
400
- 6.625 Rod
- Flat Top |
Part
#
|
Stroke |
C/H |
Bore |
Weight |
Compression
Ratio* |
Ring
Set |
Purchase
Online |
-
|
72cc |
87cc |
- |
|
|
3.750 |
1.708 |
4.150 |
525 |
|
10.38 |
9.02 |
|
315-0032 |
|
Ring
Groove: 1/16, 1/16, 3/16
Valve Relief Volume: 5.5cc
* Compression ratio computed with .010
deck and .038 head gasket.
* Forged of 2618 High Strength Alloy.
* Pins, Pin Fitting and Spiro-Locks Included.
428
- 6.625 Rod - Flat Top
|
Part
#
|
Stroke
|
C/H
|
Bore
|
Weight
|
Compression
Ratio*
|
Ring
Set
|
Purchase
Online
|
-
|
77cc
|
87cc
|
-
|
|
|
4.000
|
1.590
|
4.125
4.150
|
505
510
|
|
10.90
11.02
|
9.46
9.57
|
|
315-0032
|
|
Ring Groove: 1/16,
1/16, 3/16
Valve Relief Volume: 5.5cc
* Compression ratio computed with .010 deck and .038
head gasket.
* Forged of 2618 High Strength Alloy.
* Pins, Pin Fitting and Spiro-Locks Included.
455
- 6.625 Rod - Flat Top
|
Part
#
|
Stroke
|
C/H
|
Bore
|
Weight
|
Compression
Ratio*
|
Ring
Set
|
Purchase
Online
|
-
|
77cc
|
87cc
|
-
|
|
|
4.210
|
1.485
|
4.171
4.181
|
510
515
|
|
11.62
11.66
|
10.08
10.12
|
|
315-0032
|
|
Ring Groove: 1/16,
1/16, 3/16
Valve Relief Volume: 5.5cc
* 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 Aluminum
* 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-Setonation 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 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!
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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