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Wiseco
Wiseco Pro Tru Street Chevy Big Block 4.250in Bore 1.760in CH 21.00 CC Piston Set
SKU: W00C PTS520AS
Advanced — 4+ hours
Description
Part #: PTS520AS
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.
Features:
- ArmorGlide Skirt Coating: Seizure resistant, Friction Reduction, and Quieter Operation
- 4032 Forged Aluminum
- AS-Forged Dome with Crown Features & Oil Drain Backs
- Chromium Alloy Steel Piston Pin & Spirolox Included
Wiseco Chevrolet Big Block Piston Set, 4.250 in. Bore, 1.760 in. Compression Height, 0.990 in. Pin Diameter, Pro Tru Street, Set of 8.
This product may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
Fitment
Fitment Guaranteed
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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | Wiseco |
| Part Number | W00C PTS520AS |
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Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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