454 ci BB Chev - Dome Top Hypereutectic Pistons489 c.i., 4.280" bore, 4.250 stroke, 6.135" rod length, +11.2cc dome volumeBrand: SPEEDPROPart Number: SPH552CP 030Description: 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: 489
- Bore: 4.280
- Stroke: 4.250
- Rod Length: 6.135
- Compression Height: 1.525
- Compression Ratio with 100cc chamber volume: 10.62
- Compression Ratio with 117cc chamber volume: 9.34
- Compression Ratio with 124cc chamber volume: 8.88
- Dome Volume: +11.2cc
- Pin Type: Press or Float
- Recommended Ring Set: Moly - SPE233K 030, STD Fit - SPR9905 030, File Fit - SPR9590 035
- Coated skirt
