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DIAMOND Racing STREET/STRIP FLAT TOP Pistons [Bore 4.130 | Stroke 4.000 | Rod 6.077 | C.D. 1.163 | Weight 457 | Pin .9252\" x 2.250\" | CC\'s -3.84 | 70cc 11.2 | 72cc 11.0] (GM 7.0L LS7)

DIAMOND Racing STREET/STRIP FLAT TOP Pistons [Bore 4.130 | Stroke 4.000 | Rod 6.077 | C.D. 1.163 | Weight 457 | Pin .9252" x 2.250" | CC's -3.84 | 70cc 11.2 | 72cc 11.0] (GM 7.0L LS7)

$973.98  $925.28
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LS7 Block: 4.125 Std Bore 4.000 Std Stroke
  • 3D milling on piston crowns for ready to install finish
  • Inboard forging design for maximum strength
  • Valve pockets designed to work with most aftermarket cylinder heads
  • Offset pins for quiet operation
  • Moly skirt coating for friction loss and skirt wear protection
  • Top ring down dimension: .250"
  • Ratios figured for .040 head gasket
  • Premium 1.2mm x 1.2mm x 3.0mm ring package included
  • Premium 8620 .185W wrist pins chamfered for roundwire locks included
  • Valve pocket depth: 0.206" intake and .148" exhaust
  • 2618 material for High HP-NOS-Boost applications
Optional H-13, M2 and TP-1 wrist pins available as a upgrade to any piston part number.


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  • Model: 11581-R1-8
  • FROM: DIAMOND Pistons

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we added this on Monday 23 July, 2007.

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