
WISECOPART NUMBER: 926-5521A6
Pro Tru Street Series Forged Piston for Chevy Big Block, 4.530 in. Bore, 1.270 in. Compression Height, +15cc Dome
$12199
Items You Need
Forged PistonChevy Big Block 4.530 in. Bore 1.270 in. Compression Height +15cc Dome 0.990 in. Floating Wrist Pin Included Piston Rings Included Slab Side 4032 Forged Aluminum ArmorGlide Coated Skirt Sold Individually
This Wiseco Pro Tru Street Series piston is forged from 4032 aluminum for Chevy Big Block engines. It has a 4.530 in. bore and a 1.270 in. compression height with a +15cc dome. Pro Tru Street pistons are intended for street and strip engine rebuilds.
Wiseco 5521A6 Piston Features:
- Made for Chevy Big Block engines
- 4.530 in. bore diameter with a 1.270 in. compression height
- +15cc dome volume
- Forged from 4032 aluminum alloy with a slab side forging design
- ArmorGlide skirt coating for reduced friction, scuff resistance and quieter operation
- 0.990 in. 5115 Steel floating wrist pin included
- Piston rings included: 1/16 in. top, 1/16 in. second and 3/16 in. oil ring
- As-forged dome with crown features and oil drain backs
- Spirolox wrist pin retainers included
- Sold individually
Part TypePiston
BrandWISECO
Package Height4.2
Package Width4.8
Package Length4.8
Weight2.3 PG
Part CategoryPerformance Parts
Compression Height1.270 in.
Piston Head TypeDome
Wrist Pin StyleFloating
QuantitySold Individually
Oil Ring Thickness3/16 in.
Piston Head Volume+15cc
Piston StyleSlab Side
Piston Pin Outside Diameter0.990 in.
Second Compression Ring Thickness1/16 in.
Top Compression Ring Thickness1/16 in.
Piston Material4032 Aluminum
Cylinder Bore Diameter4.530 in.
Part FitmentUniversal
Wrist Pin IncludedYes
Piston Pin Material5115 Steel
Vendor Part Number5521A6
Package Qty1
Package TypeEA
Some parts are not legal for use in California or other states with similar laws / regulations

![Industrial Nitrile Gloves [6 mils Thick, Medium]](https://www.jegs.com/images/mini_200/500/555/555-1133.jpg)


![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)





![Heavy-Duty Piston Installation Tool [Nylon Composite, White]](https://www.jegs.com/images/mini_200/700/778/778-67571.jpg)