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Real experience
We test before we recommend.
PRODUCT DESCRIPTION
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










WHY THETUNERLAB
We have spent years building cars, racing, and testing the exact same parts that we sell.
01
We test before we recommend.
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We help you choose the right part.
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Only trusted manufacturers.
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Before and after the purchase.
+10 years
of passion for drifting
+30.000
available products
+5.000
satisfied customers
24/7
passion for motoring
Each product indicates compatible models in the product description. If you have any questions, you can contact us and we will help you choose your best option.
-If the product is in stock, the usual delivery time is 2 to 5 working days.
-If the product is out of stock, the delivery time is 7 to 15 working days.
All our products come with the manufacturer's official warranty and comply with current regulations.
Yes. We ship orders to Spain and most European countries using specialized transport agencies.
You can contact our team via WhatsApp, email, or our website's contact form.
Shipping costs depend on the type of product, its weight, dimensions, and the destination country. In most cases, the amount is calculated automatically during the checkout process before the order is finalized.
For some products, especially large items or those with special characteristics, shipping costs may require a manual review. If the amount shown does not match the actual shipping cost, we will contact you before processing the order to inform you of the final cost and request your confirmation before proceeding. We will never charge any additional fees without your authorization.