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Wiseco Pro Tru Street Pistons PTS503A4 Pistons, Pistons, 4.040 in. Bore, Forged, Flat Top, 1/16 in., 1/16 in., 3/16 in. Rings, Chevrolet, Kit

SKU: WISPTS503A4

Pistons

Wiseco Pro Tru Street Pistons PTS503A4 Pistons, Pistons, 4.040 in. Bore, Forged, Flat Top, 1/16 in., 1/16 in., 3/16 in. Rings, Chevrolet, Kit

SKU: WISPTS503A4

Pistons
A$1,526.48
IN STOCK! Est Ship 4-7 days. In stock at 1 location (more than 10 available)

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Description

Wiseco Pro Tru Street Chevy Small Block 4.040in Bore 1.560in CH -5.00 CC Piston Set

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.

Additional Information

Wiseco Chevrolet Small Block Piston Set, 4.040 in. Bore, 1.560 in. Compression Height, 0.927 in. Pin Diameter, Pro Tru Street, Set of 8.

Part Type

Engine Piston Set

Data: v4.2 - Upd: 2026-11-08 20:01:00

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

Data: v2 - Desc: v4.2 - Upd: 2026-11-08 20:19:59

Note for Pistons, Rings, Rotors, Rods and engine internals

Unless otherwise specified, some brands supply brake rotors, pistons, strut mounts, rods and rings separately. In some cases, titles may indicate plural, or 'set' - eg the term “ring set” often refers to the rings for a single piston only. If you’re unsure about what’s included with this product, please contact our team for clarification.

(keyword: pistons)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Wiseco, WISECO-PRO TRU
StreetFX SKU wisPTS503A4
SFX Item ID 4767569
Accounting SKU wis-PTS503A4
Manufacturer SKU PTS503A4
Manufacturer UPC 193564092892
Alternative References PTS503A4, WIS-PTS503A4

Pistons, Pro Tru Street Pistons, 4.040 in. Bore, Forged, Flat Top, 1/16 in., 1/16 in., 3/16 in. Rings, Chevrolet, Kit

Are you looking for affordable high performance for your street machine? Wiseco Pro Tru Street pistons are right up your alley! These forged 4032 aluminum pistons are complete with chromium alloy steel piston pins and Spirolox. Oversized, symmetrical, radiused valve pockets allow for maximum flow around the valves during overlap—and accommodate oversized valves and high-lift cams. Wiseco's proprietary ArmorGlide skirt coating extends piston life, increases horsepower, reduces noise, and offers much tighter dimensional tolerances than typical spray-on coatings. Choose the set designed for your vehicle and engine application. World-class, precision-machined high performance pistons—that's Wiseco value!

Product Attributes
BrandWiseco
Manufacturer's Part NumberPTS503A4
Part TypePistons
Product LineWiseco Pro Tru Street Pistons
UPC00193564092892
Piston Rings IncludedYes
Bore (in.)4.040 in.
Bore (mm)102.616mm
Stroke3.480 in.
Rod Length5.700 in.
Piston StyleFlat top, with two valve reliefs
Piston MaterialForged aluminum
Compression Height (in.)1.560 in.
Piston Head Volume (cc)+5.00cc
Wrist Pin StylePress-fit or floating
Wrist Pin Retainers IncludedYes
Wrist Pin IncludedYes
Pin Diameter (in.)0.927 in.
File FitYes
GaplessNo
Top Ring Thickness1/16 in.
Top Ring MaterialDuctile iron
Top Ring Facing MaterialPlasma-moly
Second Ring Thickness1/16 in.
Second Ring MaterialIron
Second Ring Facing MaterialPhosphate coated
Oil Ring Thickness3/16 in.
Oil Ring MaterialCarbon steel
Oil Ring Facing MaterialChrome
Oil Ring TensionStandard
RemanufacturedNo
QuantitySold as a set of 8.

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