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Wiseco Pro Tru Street Pistons PTS525AS Pistons, Street, Forged, Flat Top, 4.125 in. Bore, Rings, Chevrolet, 6.6L, Set of 8

SKU: WISPTS525AS

Pistons

Wiseco Pro Tru Street Pistons PTS525AS Pistons, Street, Forged, Flat Top, 4.125 in. Bore, Rings, Chevrolet, 6.6L, Set of 8

SKU: WISPTS525AS

Pistons
A$1,258.16
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.
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Description

Our Pro Tru Street series pistons are forged from 4032 alloy aluminum in Mentor, Ohio and includes rings, pins, and clips for an all-inclusive rebuild. For any build budget, Wiseco has the piston to get you on the road or down the track.

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-09-30 17:40:15

Features

  • 4032 Forged Aluminum
  • ArmorGlide Skirt Coating: Seizure resistant, Friction Reduction, and Quieter Operation
  • AS-Forged Dome with Crown Features & Oil Drain Backs
  • Chromium Alloy Steel Piston Pin & Spirolox Included

Specifications

Product Attributes - Brand
Wiseco
Product Attributes - Manufacturer's Part Number
PTS525AS
Product Attributes - Part Type
Pistons
Product Attributes - Product Line
Wiseco Pro Tru Street Pistons
Product Attributes - UPC
00193564093547
Product Attributes - Piston Rings Included
Yes
Product Attributes - Bore (in.)
4.125 in.
Product Attributes - Bore (mm)
104.775mm
Product Attributes - Stroke
3.750 in.
Product Attributes - Rod Length
6.000 in.
Product Attributes - Piston Style
Flat top, with two valve reliefs
Product Attributes - Piston Material
Forged aluminum
Product Attributes - Compression Height (in.)
1.125 in.
Product Attributes - Piston Head Volume (cc)
+5.00cc
Product Attributes - Wrist Pin Style
Press-fit or floating
Product Attributes - Wrist Pin Retainers Included
Yes
Product Attributes - Wrist Pin Included
Yes
Product Attributes - Pin Diameter (in.)
0.927 in.
Product Attributes - Piston Ring Thickness
1/16 in. x 1/16 in. x 3/16 in.
Product Attributes - File Fit
Yes
Product Attributes - Gapless
No
Product Attributes - Top Ring Thickness
1/16 in.
Product Attributes - Top Ring Material
Ductile iron
Product Attributes - Top Ring Facing Material
Plasma-moly
Product Attributes - Second Ring Thickness
1/16 in.
Product Attributes - Second Ring Material
Cast iron
Product Attributes - Second Ring Facing Material
Phosphate coated
Product Attributes - Oil Ring Thickness
3/16 in.
Product Attributes - Oil Ring Material
Stainless steel
Product Attributes - Oil Ring Facing Material
Chrome
Product Attributes - Oil Ring Tension
Standard
Product Attributes - Remanufactured
No
Product Attributes - Quantity
Sold as a set of 8.

Reference Information

Brand Name/s Wiseco
StreetFX SKU wisPTS525AS
SFX Item ID 4764812
Supplier Item Code 4764812
Manufacturer SKU PTS525AS
Manufacturer UPC 193564093547
Alternative References 6.6L

Compatibility

Application Data
  • MakeCHEVROLET
    Beginning Year1970
    Ending Year1980
    Engine TypeV8
    Engine FamilyChevy small block Gen I
    Engine Size6.6L/400

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