These ruggedly durable
pistons are made with
exclusive high strength FM425
alloy, and enhanced with
16.5% silicon for excellent
tensile strength and scuff
resistance. This advanced
metallurgy permits tighter
bore clearances, which help
minimise noise on cold engine
start-up. These pistons are
the ideal choice for street
performance applications and
late-model replacement.
More Sealed Power
hypereutectics benefits:
- Higher
strength than cast or forged
at operating temperature
- Finely dispersed silicon
particles provide a highly
resistant wear surface and
reduces scuffing
-
Lower material growth allows
pistons to be fit tighter,
improving cylinder sealing
for less blow-by and more
power
- High silicon
content allows elimination of
groove inserts in certain
applications
- Designed
to retain standard ring gaps
in the top groove
Piston Specifications
:
- CID:
357
- Bore: 4.030
- Stroke: 3.500
- Rod
Length: 5.980
-
Compression Height: 1.772
- Compression Ratio with
60cc chamber volume: 9.14
- Compression Ratio with
63cc chamber volume: 8.91
- Compression Ratio with
69cc chamber volume: 8.43
- Dome Volume: -12.0cc
- Pin Type: Press
-
Recommended Ring Set: Moly -
SPE251K 030, STD Fit -
SPR9903 030, File Fit -
SPR9343 035