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PRODUCT DESCRIPTION
Product details
ZRP, in collaboration with Wiseco, has created a new and exclusive series of USA-made pistons from 2618 alloy. These pistons share many advanced features with the Wiseco HD1400 series for extremely high horsepower setups.
They include upgraded pins with a 5.34 mm wall thickness and Armor Plating for reducing the negative effects of intense heat in turbocharged and nitrous/methanol setups. Each ZRP piston for this application incorporates ArmorGlide skirt coating to minimize wear during break-in and reduce friction on the cylinder wall. Our pistons are made from proprietary forgings, providing a lightweight piston with superior strength and optimal design. Additionally, the valve pockets are larger and deeper than those of the original pistons to accommodate high-lift camshafts. The pistons also feature offset pins and anti-detonation and gas pressure grooves to extend ring life.
What is Armor Plating?
Armor Plating gives them a bronze hue on the top and in the piston pin bore. This abrasion-resistant coating increases the hardness of the aluminum, improves the durability of the ring grooves, prevents micro-welding of the piston rings, reduces carbon buildup, and fights detonation corrosion. Additionally, Armor Plating reduces the piston crown temperature by an average of 20°C.
What is ArmorGlide anti-friction skirt coating?
ArmorGlide piston skirt coating is made of molybdenum solid film lubricant and is permanently bonded to the pistons. One of its main features is resistance to seizing and friction reduction, ensuring quiet operation. Of course, piston rocking and noise are reduced, and power is increased.
Additional Information
Bore
86.50 mm
Thickness
1.42 mm
Notes
3.4L long stroke engine with 94.00 mm crankshaft.
Length (cc)
142.00
Set of
6
Stroke
86.25 mm
Compression Ratio
9.0:1
OEM Compression Ratio
8.5:1
Compression Height
29.80 mm
Pin Diameter
22.00 mm
Head Clearance
-0.20
Dome Volume
-13.50 cc
Ring Set
21-GNH8625
Piston Material
2618 low silicon, high expansion alloy
Application
3.0L 2JZ Engine
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