Speed Pro Chev Ls1 Flat Top Forged Pist Std Bore 1.5/1.5/3.0Mm -5C (L2621F STD) L2621FSTD
(Prior to Dispatch)
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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.This 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.
- nts damage from inadequatelubrication, especially atstart-up.
- Improvescylinder sealing for lessblow-by and more power.
- PLUS - Each pistonfeatures a window that isused to measure the exactskirt size for precise boreclearance.
Piston Specifications:
- CID:346
- Bore: 3.897
- Stroke: 3.620
- RodLength: 6.098
- Compression Height: 1.328
- Compression Ratio with66cc chamber volume: 9.98
- Dome Volume: -5.0cc
- Pin Type: Press
- Recommended Ring Set: Moly -SPE938K STD, STD Fit - N/A,File Fit - SPR10598 13MM