Speed Pro Chev 350 12.5:1 Forged Piston +11Cc Dome, 1/16 1/16 1/8 (L2252AF 040) L2252AF40
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NEXT GENDUROSHIELD COATING
With an enhancedformulation bonded into thepiston surface at the atomiclevel, DUROSHIELD deliversthe ultimate combination oflow friction and exceptionaldurability, even in the mostcritical engine environments.This technologically advancedcoating is precisely appliedto the piston through acomputer-controlled process.
- New and improvedprotective formulation - NextGen DUROSHIELD graphitecoating reduces abrasivewear,
- increasing theanti-seizing characteristicswhen there is insufficientlubrication.
- Atomically bonded to thesubstrate, using advancedmaterial and manufacturingprocesses.
- Requiresno increase in skirtclearance.
A Quieter Engine
When a pistonreaches either end of thecylinder, it decelerates.is can cause it to slap.However, an engine equippedwith skirt-coated pistonswill run more quietly becausethe skirt coating acts as a"cushion" between the pistonand cylinder wall, reducingthe potential for slapping.
Moreefficiency, More power
Skirt coatingreduces friction between thepiston and the cylinder wall,and provides better surfacelubricity in engines withextremelytight-piston-to-boretolerances. Speed-ProDUROSHIELD POWERFORGEDpistons enable improvedpiston-to-bore clearanceswhich provides a more stablepiston, thereby reducingleakage from the compressionchamber, improving horsepowerand efficiency.
- Offers even greater engineefficiency, frictionreduction and horsepowergains than previous coatings,plus better NVH reduction -perfect for aggressivecombustion strategies andvery high temperatures.
- Significantly reducesfriction across the entireRPM range.
- Helpsprevent scuffing of skirt andcylinder wall.
- Prevents damage frominadequate lubrication,especially at start-up.
- Improves cylinder sealingfor less blow-by and morepower.
- PLUS - Eachpiston features a window thatis used to measure the exactskirt size for precise boreclearance.
Piston Specifications:
- CID:356
- Bore: 4.040
- Stroke: 3.480
- RodLength: 5.700
- Compression Height: 1.560
- Compression Ratio with64cc chamber volume: 11.88
- Compression Ratiowith 72cc chamber volume:10.72
- CompressionRatio with 76cc chambervolume: 10.23
- DomeVolume: +10.6cc
- PinType: Press or Float
- Recommended Ring Set: Moly -N/A, STD Fit - N/A, File Fit- SPR9342 045
- Coatedskirt