Speed Pro Bbc 454 Forged Flat Top Piston -4.9Cc Dish 5/64 5/64 3/1 (L2377F STD) L2377FSTD
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NEXT GEN DUROSHIELDCOATING
With anenhanced formulation bondedinto the piston surface at theatomic level, DUROSHIELDdelivers the ultimatecombination of low frictionand exceptional durability,even in the most criticalengine environments. Thistechnologically advancedcoating is precisely appliedto the piston through acomputer-controlledprocess.
- New andimproved protectiveformulation - Next GenDUROSHIELD graphite coatingreduces abrasivewear
- increasing theanti-seizing characteristicswhen there is insufficientlubrication.
- Atomically bonded to thesubstrate, using advancedmaterial and manufacturingprocesses.
- Requires noincrease in skirt clearance.
A QuieterEngine
When apiston reaches either end ofthe cylinder, it decelerates.This can cause it to slap.However, an engine equippedwith skirt-coated pistons willrun more quietly because theskirt coating acts as a"cushion" between the pistonand cylinder wall, reducingthe potential for slapping.
Moreefficiency, Morepower
Skirtcoating reduces frictionbetween the piston and thecylinder wall, and providesbetter surface lubricity inengines with extremelytight-piston-to-boretolerances. Speed-ProDUROSHIELD POWERFORGED pistonsenable improved piston-to-boreclearances which provides amore stable piston, therebyreducing leakage from thecompression chamber, improvinghorsepower andefficiency.
- Offerseven greater engineefficiency, friction reductionand horsepower gains thanprevious coatings, plus betterNVH reduction - perfect foraggressive combustionstrategies and very hightemperatures.
- Significantly reducesfriction across the entire RPMrange.
- Helps preventscuffing of skirt and cylinderwall.
- Prevents damagefrom inadequate lubrication,especially atstart-up.
- Improvescylinder sealing for lessblow-by and morepower.
- PLUS - Eachpiston features a window thatis used to measure the exactskirt size for precise boreclearance.
PistonSpecifications:
- CID:454
- Bore:4.250
- Stroke:4.000
- Rod Length:6.135
- CompressionHeight:1.640
- CompressionRatio with 107cc chambervolume:8.26
- Compression Ratiowith 117cc chamber volume:7.74
- Compression Ratiowith 120cc chamber volume:7.64
- Dome Volume:-4.9cc
- Pin Type:Press
- Recommended RingSet: Moly - SPE233K STD, STDFit - SPR990 STD, File Fit -SPR9590 STD
- Coatedskirt