4B11

4B11

4B11

Piston Features:
  • 3D milling on piston crowns for ready to install finish
  • Offset pins for quiet operation
  • Side gas ports for better ring seal
  • Moly skirt coating for friction loss and skirt wear protection
  • Ratios figured for 87mm x .040 head gasket @ 8.660 deck
  • Top ring down dimension: .300"-.265" 1.070cd
  • Premium 8620 .180W wrist pins chamfered for roundwire locks included
  • Premium 1.0mm x 1.2mm x 2.8mm ring package included
  • Over-sized valve pockets - for larger than stock valve sizes
  • Valve pocket depth: 0.150" intake and .070" exhaust
  • 2618 material for High HP/Boost applications

 

Items 1-18 of 18
Item No
Bore
Stroke
Rod
Comp Height
Pin
Cc
Compression Ratio
82050-4  86.0mm 86.0mm 5.659 1.305 23 mm -6.0cc 9.0
82051-4  86.5mm 86.0mm 5.659 1.305 .905 x 2.250 -6.0cc 9.1
82052-4  86.0mm 86.0mm 5.659 1.305 .905 x 2.250 1.0cc 10.0
82053-4  86.5mm 86.0mm 5.659 1.305 .905 x 2.250 1.0cc 10.1
82054-4  86.0mm 94.0mm 5.659 1.150 .905 x 2.250 -12.0cc 9.0
82055-4  86.5mm 94.0mm 5.659 1.150 .905 x 2.250 -12.0cc 9.1
82056-4  86.0mm 94.0mm 5.659 1.150 .905 x 2.250 -4.5cc 10.0
82057-4  86.5mm 94.0mm 5.659 1.150 .905 x 2.250 -4.5cc 10.1
82058-4  86.0mm 98.0mm 5.659 1.070 .905 x 2.250 -15.0cc 9.0
82059-4  86.5mm 98.0mm 5.659 1.070 .905 x 2.250 -15.0cc 9.1
82060-4  86.0mm 98.0mm 5.659 1.070 .905 x 2.250 -7.0cc 10.0
82061-4  86.5mm 98.0mm 5.659 1.070 .905 x 2.250 -7.0cc 10.1
82062-4  90.0mm 86.0mm 5.659 1.305 .905 x 2.250 -6.0cc 9.7
82063-4  90.0mm 86.0mm 5.659 1.305 .905 x 2.250 1.0cc 10.5
82064-4  90.0mm 94.0mm 5.659 1.150 .905 x 2.250 -12.0cc 9.8
82065-4  90.0mm 94.0mm 5.659 1.150 .905 x 2.250 -4.5cc 10.8
82066-4  90.0mm 98.0mm 5.659 1.070 .905 x 2.250 -15.0cc 9.7
82067-4  90.0mm 98.0mm 5.659 1.070 .905 x 2.250 -7.0cc 10.8