Page 29 - EA20_LR
P. 29
TOP TOP
COATINGS SPORT COMPACT PISTONS
Piston Terminology
DOME HEIGHT
Piston Coating PISTON DECK
STD OIL DRAIN TOP LAND
BACK HOLES
SECOND LAND
SPLIT OIL DRAIN THIRD LAND
BACK HOLES
Wiseco’s new ArmorPlating is the ultimate in performance piston coatings. OIL RING GROOVE
SIDE RELIEF
FORCED PIN OILER
(CENTERED OR SPLIT)
WRIST PIN HOLE/ SINGLE OR DOUBLE
• Applied to the critical parts of the piston. PIN DIA.
• Reduces the effects of detonation on the piston dome. LOCK GROOVE SKIRT
• Lowers the temperature of the piston crown (20c on average). PICK LOCK GROOVE
• Creates a hard, smooth surface for the rings to rest on. (AVAILABLE FOR BOTTOM BAND
WIRE LOCKS)
• Prevents micro welding of the rings in the ring grooves. SLIPPER THICKNESS TANG
• Available on custom applications as well. VALVE POCKET DEPTH MEASURED VERTICALLY
FROM DECK TO THE DEEPEST PART OF
VALVE POCKET THE VALVE RELIEF REDIUS
New ArmorPlating by Wiseco reduces the ill effects of high-heat in turbocharged TANG
Sport Compact pistons.
COMPRESSION
HEIGHT/DISTANCE
PIN BORE CENTER
GAGE POINT
(.500” STD,
.275” WHEN SPECIFIED
EXHAUST INTAKE
VALVE VALVE
STOP STOP
INTAKE
CENTERLINE
EXHAUST OUT
CENTERLINE EXHAUST VALVE INTAKE VALVE
RELIEF
RELIEF
OUT
30 31
