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![P1520(6)040 Dish Top Piston for 1966-1984 Chevrolet 3.8L, 4.1L [+0.040 in. Oversize]](https://www.jegs.com/images/mini_750/400/416/416-p1520(6)040.jpg)
Vehicle Info NeededENGINETECHPART NUMBER: 416-P1520(6)040
P1520(6)040 Dish Top Piston for 1966-1984 Chevrolet 3.8L, 4.1L [+0.040 in. Oversize]
$19099
Ships on 09/14/2026
Lowest Price GuaranteeGM
Piston1966-1984 Chevrolet 3.8L, 4.1L Dish Top Piston Size: +0.040 in. Oversize Set of 6
The Enginetech P1520(6)040 is a replacement piston for GM/Chevrolet, 4.1L 250 engines, sized at +0.040 in. Oversize. Engineered to OE specifications for reliable combustion chamber performance.
Enginetech P1520(6)040 Piston Features:
- Fitment: GM/Chevrolet, 4.1L 250
- Size: +0.040 in. Oversize
- Engineered to OE specifications for direct replacement
- Note: "D" shaped dish top. 1.640" CH. Coated skirt. Use R38856 or C38856 rings."D" shaped dish top. Excludes LPG engines. Use R38856 or C38856 rings.
Part TypePiston
BrandENGINETECH
Package Height3.75
Package Width9.25
Package Length13.75
Weight11.25 PG
Part CategoryReplacement Parts
Compression Height1.640
Size+0.040 in. Oversize
QuantitySet of 6
Oil Ring Thickness3/16
RemanufacturedNo
Bore Diameter3.875
Piston StyleDish
Piston Pin Outside Diameter0.9273
Second Compression Ring Thickness5/64
Top Compression Ring Thickness5/64
Piston MaterialCast aluminum
FitmentGM/Chevrolet
Part FitmentDirect Fit
Engine Displacement4.1L 250
Vendor Part NumberP1520(6)040
Package Qty1
Package TypeEA
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