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![P1581(6)STD Dish Top Piston for 1988-1992 Buick, Oldsmobile, Pontiac 3.8L [Standard Size]](https://www.jegs.com/images/mini_750/400/416/416-p1581(6)std.jpg)
Vehicle Info NeededENGINETECHPART NUMBER: 416-P1581(6)STD
P1581(6)STD Dish Top Piston for 1988-1992 Buick, Oldsmobile, Pontiac 3.8L [Standard Size]
$43799
Ships on 09/17/2026
Lowest Price GuaranteeGM
Piston1988-1992 Buick, Oldsmobile, Pontiac 3.8L Dish Top Piston Size: Standard Set of 6
The Enginetech P1581(6)STD is a replacement piston for GM/Buick, 3.8L 231 engines, sized at Standard. Engineered to OE specifications for reliable combustion chamber performance.
Enginetech P1581(6)STD Piston Features:
- Fitment: GM/Buick, 3.8L 231
- Size: Standard
- Turbocharged or supercharged application
- Engineered to OE specifications for direct replacement
- Note: Dish top. 1.366 CH. Hyper. Use M96136 rings./C. Use M96136 rings.
Part TypePiston
BrandENGINETECH
Package Height3.75
Package Width9.25
Package Length13.75
Weight7.75 PG
Part CategoryReplacement Parts
Compression Height1.366
SizeStandard Size
QuantitySet of 6
Oil Ring Thickness3.00
RemanufacturedNo
Bore Diameter3.799
Piston StyleDish
Piston Pin Outside Diameter0.9054
Second Compression Ring Thickness1.50
Top Compression Ring Thickness1.50
Piston MaterialCast aluminum
FitmentGM/Buick
Part FitmentDirect Fit
Engine Displacement3.8L 231
Vendor Part NumberP1581(6)STD
Package Qty1
Package TypeEA
No Questions
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