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
toretain standard ring gaps
in the top groove
Piston Specifications
:
- CID:
461
- Bore: 4.310
- Stroke: 4.000
- Rod
Length: 6.135
-
Compression Height: 1.640
- Compression Ratio with
100cc chamber volume: 9.96
- Compression Ratio
with 117cc chamber volume:
8.79
- Compression
Ratio with 124cc chamber
volume: 8.36
- Dome
Volume: +10.5cc
- Pin
Type: Press or Float
-
Recommended Ring Set: Moly -
SPE233K 060, STD Fit -
SPR9905 060, File Fit -
SPR9590 065
- Coated
skirt