All this makes these pistons outstanding for performance applications! Hypereutectic pistons are serious pistons that don't cost an arm and a leg. Hypereutectic pistons are made from 390 alloy and heat-treated to T6 standards which feature:
Brand:
Procomp
Product Line:
Procomp
Bore (in):
4"
Piston Material:
Cast Aluminum
Piston Style:
Flat top
Compression Distance (in):
1.425
Dish Volume (cc):
4.0cc
Valve Reliefs:
Four
Wrist Pin Style:
Full Floating
Pin Diameter (in):
0.927
Top Ring Thickness:
1.5 mm
Second Ring Thickness:
1.5 mm
Oil Ring Thickness:
3.0 mm
30 percent stronger than ordinary pistons
Their 100 percent CNC-machined crowns
High upper compression-ring location
Gas-accumulator groove
Drilled oil returns
Spiral-lock retainer grooves
Ttighter fit compared to forged types
Provide improved oil control
Reduce blowby
Increase ring life
Eliminate cold start-up knocking
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