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  Home > Pistons > Probe Forged Pistons > PRS - Professional Race Series > Chevrolet > Chevrolet - LS Series > Dome Top >

Probe Forged Pistons_PRS Series_Chevrolet LS_Dome_1.110 C/H_4.065 Base Bore_11.8cc_.927 Pin_15d Head_Gas Ported
Probe Forged Pistons

Photo may not be actual product


Available Part Numbers/Oversize

8033-3-15042-000 - 4.065
8033-3-15042-005 - 4.070
8033-3-15042-010 - 4.075
8033-3-15042-015 - 4.080

Probe Industries Professional Race Series Forged Pistons are designed for extreme performance street and all racing applications. They are available in a wide variety of designs, tuned to achieve the highest performance possible. Any combination from high performance street to heavily boosted race only cars will find Probe PRS Series Forged Pistons to be the perfect piston for virtually any application.
  • 2618-t61 Forged Aluminum
  • Lightweight piston designs
  • 52100 bearing steel wrist pins
  • Full floating
  • Tight running clearances
  • Low friction narrow piston rings
  • Top or lateral gas ports
  • Dual forced and broached pin oilers
  • Low drag skirt design
  • Large variety of compression ratios
  • Design specific valve reliefs
  • Nitrous - 400 H/P
  • Forced Induction - 20 lbs
  • Four (each) minimum order quantity
Custom sizes and applications are also available. Additional cost and manufacture times may apply.
Allow approximately 14 business days for manufacture. Delivery times may vary seasonally.

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Item# Item Name Price Qty Add
8033-3-15042-000 PRS Pistons_Chevrolet LS_Dome_4.065 Bore_11.8cc
8033-3-15042-005 PRS Pistons_Chevrolet LS_Dome_4.070 Bore_11.8cc
8033-3-15042-010 PRS Pistons_Chevrolet LS_Dome_4.075 Bore_11.8cc
8033-3-15042-015 PRS Pistons_Chevrolet LS_Dome_4.080 Bore_11.8cc
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Technical Specs:
Item Code8033-3-15042
VendorProbe Industries
Product TypePistons
Product ModelProfessional Race Series - PRS
Nitrous400 H/P
Forced Induction20 lbs
Engine Displacement408
Engine FamilyChevrolet LS Series
Base Bore4.065
Rod Length6.125
Compression Height1.110
Top TypeDome
Net Piston Volume11.8
Minimum Deck Thickness.200
Valve Pocket Location15d OEM
Valve Pocket Cutters2.300 Intake - 1.700 Exhaust
Valve Pocket Depth.200 Intake - SP Exhaust
Wrist Pin Type52100 Bearing Steel
Wrist Pin Diameter.927
Wrist Pin Length2.300
Wall ThicknessPer Application
Wrist Pin WeightPer Application
Pin OilersForced
Pin Lock TypeDouble Spiral
Oil Support RailYes
Rings IncludedNo
Ring Grooves1.2 - 1.2 - 3.0
Gas PortsVertical or Lateral
Gas Port Size10 to 12 - .062 drill
Ring Lands.260 - .180 - .090
QuantitySold in sets of 8

Compression Ratio:
Cylinder Head Volume
Part Number Net cc 64cc 68cc 70cc
8033-3-15042-000 9.5 14.51 13.70 13.33
8033-3-15042-005 9.5 14.54 13.73 13.36
8033-3-15042-010 9.5 14.57 13.76 13.39
8033-3-15042-015 9.5 14.60 13.79 13.42
Computed with .010 deck and .040 x 4.100 gasket

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