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  Home > Pistons > Probe Forged Pistons > PRS - Professional Race Series > Chevrolet > Chevrolet - Big Block > Flat Top >

Probe PRS Series Forged Pistons_Chevrolet 454_Flat_1.645 C/H_4.250 Base Bore_-3.0cc_.990 Pin_OEM Valve Locations_Gas Ported
Probe Forged Pistons

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Available Part Numbers/Oversize

8025-1-13727-000 - 4.250
8025-1-13727-030 - 4.280
8025-1-13727-060 - 4.310
8025-1-13727-070 - 4.320
8025-1-13727-100 - 4.350
8025-1-13727-125 - 4.375

Probe PRS Series Forged Pistons

Probe Industries Professional Race Series Forged Pistons are designed for high 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 - to 300 H/P
  • Forced Induction - 15 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.



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

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Item# Item Name Price Qty Add
8025-1-13727-000 PRS Pistons_Chevrolet 454_Flat_4.250 Bore_-3.0cc
$1,300.00
8025-1-13727-030 PRS Pistons_Chevrolet 460_Flat_4.280 Bore_-3.0cc
$1,300.00
8025-1-13727-060 PRS Pistons_Chevrolet 467_Flat_4.310 Bore_-3.0cc
$1,300.00
8025-1-13727-070 PRS Pistons_Chevrolet 469_Flat_4.320 Bore_-3.0cc
$1,300.00
8025-1-13727-100 PRS Pistons_Chevrolet 476_Flat_4.350 Bore_-3.0cc
$1,300.00
8025-1-13727-125 PRS Pistons_Chevrolet 481_Flat_4.375 Bore_-3.0cc
$1,300.00
Check the items you wish to purchase, then click


Technical Specs:
Item Code 8025-1-13727
Vendor Probe Industries
Product Type Pistons
Product Model Professional Race Series - PRS
Nitrous 300 H/P
Forced Induction 15 lbs
Engine Displacement 454
Engine Family Chevrolet 454 Big Block
Material 2618-t61 Forged Aluminum
Base Bore 4.250
Stroke 4.000
Rod Length 6.135
Compression Height 1.645
Top Type Flat Top
Net Piston Volume -3.0
Minimum Deck Thickness .180
Valve Pocket Location OEM Head
Valve Pocket Cutters 2.300 Intake - .000 Exhaust
Valve Pocket Depth .320 Intake - .060 Up Exhaust
Weight 575
Wrist Pin Type 52100 Bearing Steel
Wrist Pin Diameter .990
Wrist Pin Length 2.930
Wall Thickness .150
Wrist Pin Weight 146
Pin Oilers Forced/Broached Combination
Pin Lock Type Double Spiral
Oil Support Rail No
Rings Included No
Ring Grooves .043 1/16 3/16 Rings
Gas Ports 10 to 12 - .062 drill
Ring Lands .350 - .160 - .080
Quantity Sold in sets of 8
Minimum Order Quantity 4 (each)
Notes




Compression Ratio:

Cylinder Head Volume
Part Number Net cc 109cc 112cc 118cc 123cc
8025-1-13727-000 -3.0 8.49 8.31 7.98 7.73
8025-1-13727-030 -3.0 8.58 8.41 8.07 7.82
8025-1-13727-060 -3.0 8.68 8.50 8.16 7.90
8025-1-13727-070 -3.0 8.71 8.30 8.19 7.93
8025-1-13727-100 -3.0 8.81 8.63 8.28 8.02
8025-1-13727-125 -3.0 8.89 8.71 8.36 8.09
Computed at .050 piston to head clearance



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