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  Home > Pistons > Probe Forged Pistons > PRS - Professional Race Series > Chevrolet > Chevrolet - 400 Small Block > Dome Top >

Probe Forged Pistons_PRS Series_Chevrolet 421_Dome_1.062 C/H_4.125 Base Bore _3.9cc_.927 Pin_23d Wedge Head_Gas Ported
Probe Forged Pistons

Photo may not be actual product



 


Available Part Numbers/Oversize

8022-3-14796-000 - 4.125
8022-3-14796-020 - 4.145
8022-3-14796-030 - 4.155
8022-3-14796-040 - 4.165
8022-3-14796-060 - 4.185


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 6 weeks for manufacture. Delivery times may vary seasonally.



Add a Total Seal Performance Ring Set......click here

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Item# Item Name Price Qty Add
8022-3-14796-000 PRS Pistons_Chevrolet 414_Dome_4.125 Bore_3.9cc
$1,595.00
8022-3-14796-020 PRS Pistons_Chevrolet 418_Dome_4.145 Bore_3.9cc
$1,595.00
8022-3-14796-030 PRS Pistons_Chevrolet 421_Dome_4.155 Bore_3.9cc
$1,595.00
8022-3-14796-040 PRS Pistons_Chevrolet 422_Dome_4.165 Bore_3.9cc
$1,595.00
8022-3-14796-060 PRS Pistons_Chevrolet 426_Dome_4.185 Bore_3.9cc
$1,595.00
Check the items you wish to purchase, then click


Technical Specs:
Item Code8022-3-14796
VendorProbe Industries
Product TypePistons
Product ModelProfessional Race Series - PRS
Nitrous400 H/P
Forced Induction20 lbs
Engine Displacement421
Engine FamilyChevrolet 400 Small Block
Material2618-t61
Base Bore4.125
Stroke3.875
Rod Length6.000
Compression Height1.062
Top TypeDome
Net Piston Volume3.9
Minimum Deck Thickness.200
Valve Pocket Location23d Wedge
Valve Pocket Cutters2.200 Intake - 1.900 Exhaust
Valve Pocket Depth.300 Intake - .200 Exhaust
WeightTBA
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.240 - .180 - .070
QuantitySold in sets of 8
Minimum Order Quantity4 (each)
Notes




Compression Ratio:
Cylinder Head Volume
Part Number Net cc 58cc 64cc 68cc 72cc
8022-3-14796-000 3.9 13.98 12.89 12.26 11.69
8022-3-14796-020 3.9 14.10 13.00 12.37 11.79
8022-3-14796-030 3.9 14.17 13.06 12.42 11.84
8022-3-14796-040 3.9 14.23 13.12 12.47 11.89
8022-3-14796-060 3.9 14.35 13.23 12.58 12.00
Computed with .010 deck and .040 x 4.200 gasket



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