Speed Pro 454 ci BB Chev - Flat Top Hypereutectic Pistons (SPH625CP 040)

SPH625CP 040 - BBC 454 CHEV FLAT TOP PISTONS

463 c.i., 4.290" bore, 4.000 stroke, 6.135" rod length, -2.0cc dome volume

Part Number: SPH625CP 040

Available on both hypereutectic and POWERFORGED pistons, DUROSHIELD is an exclusive moly-graphite skirt
coating that extends engine life and essentially eliminates scuffing. This technologically advanced coating is precisely applied to the piston through a computer-controlled process.
DUROSHIELD skirt coated pistons:

Reduce friction for increased fuel economy and horsepower
Essentially eliminate scuffing and wear
Prevent damage from inadequate lubrication, especially at start-up

Improve cylinder sealing for less blow-by and more power
Require no increase in skirt clearance
Piston Specifications :

CID: 463
Bore: 4.290
Stroke: 4.000
Rod Length: 6.135
Compression Height: 1.640
Compression Ratio with 100cc chamber volume: 8.91
Compression Ratio with 117cc chamber volume: 7.98
Compression Ratio with 124cc chamber volume: 7.63
Dome Volume: -2.0cc
Pin Type: Press or float

Recommended Ring Set: Moly - SPE233K 040, STD Fit - SPR9905 040, File Fit - SPR9590 045
Coated skirt