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Vehicle Info NeededSEALED POWERPART NUMBER: 844-H693CP40
Hypereutectic Pistons Chevy 454ci 7.4L Big Block +040
$59027
Ships on 09/22/2026
Lowest Price GuaranteeBig Block Chevy
- Hypereutectic Pistons
- Chevy 454ci 7.4L Big Block
- 4.290" Bore (+.040)
- +22.0cc Dome Top w/2 Valve Reliefs
- Set of 8
Technical Specs: - Material: Hypereutectic
- Bore: 4.290' (108.966mm)
- Piston Top: +22.0cc Dome Top w/2 Valve Reliefs, 0.230" Dome
- Compression Height: 1.640"
- Rod Length: 6.135"
- Stroke: 4.000"
- Compression Ring Groove: 5/64"
- Second Ring Groove: 5/64"
- Oil Ring Groove Width: 3/16"
- Full Length: N/A
- Pin Size: 0.990" O.D. (25.146mm)
- Pin Type: Press-Fit or Floating
- Skirt Type: DUROSHIELD Coated
- Piston Skirt Clearance: 0.0015
- Notes: Use Piston Ring p/n 844-E233X40 Standard Set; p/n 844-E233K40 Premium Moly Set; p/n 844-R9905.040 Plasma-Moly Performance Set (Rings Not Included).
Part TypePiston
BrandSEALED POWER
Package Height5.1
Package Width10.3
Package Length20.3
Weight17.15 PG
Part CategoryPerformance Parts
QuantitySet of 8
Vendor Part NumberH693CP40
Package Qty1
Package TypeEA
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