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![P5047(8)040 Coated Hypereutectic Flat Top Piston for 1970-1983 Chevrolet 7.4L [+0.040 in. Oversize]](https://www.jegs.com/images/mini_750/400/416/416-p5047(8)040.jpg)
Vehicle Info NeededENGINETECHPART NUMBER: 416-P5047(8)040
P5047(8)040 Coated Hypereutectic Flat Top Piston for 1970-1983 Chevrolet 7.4L [+0.040 in. Oversize]
$23699
Ships on 09/14/2026
Lowest Price GuaranteeGM
Piston1970-1983 Chevrolet 7.4L Flat Top Piston; Hypereutectic Alloy; Coated Skirts Size: +0.040 in. Oversize Set of 8
The Enginetech P5047(8)040 is a replacement piston for GM, 7.4L 454 engines, sized at +0.040 in. Oversize. Hypereutectic alloy construction provides improved heat resistance and reduced expansion at operating temperature.
Enginetech P5047(8)040 Piston Features:
- Fitment: GM, 7.4L 454
- Size: +0.040 in. Oversize
- Hypereutectic alloy piston construction
- Coated construction for improved wear resistance
- Engineered to OE specifications for direct replacement
- Note: Flat top. 1.627 CH. Hyper. Coated skirt. Use R42558 or M42558 rings.
Part TypePiston
BrandENGINETECH
Package Height4.5
Package Width9.25
Package Length18.25
Weight16.0 PG
Part CategoryReplacement Parts
Compression Height1.625
Size+0.040 in. Oversize
QuantitySet of 8
Oil Ring Thickness3/16
RemanufacturedNo
Bore Diameter4.250
Piston StyleFlat top
Piston Pin Outside Diameter0.9898
Second Compression Ring Thickness5/64
Top Compression Ring Thickness5/64
Piston MaterialHypereutectic
FitmentGM
Part FitmentDirect Fit
Engine Displacement7.4L 454
Vendor Part NumberP5047(8)040
Package Qty1
Package TypeEA
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