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

Probe PRS Series Forged Pistons_Chevrolet 496_Dome_1.270 C/H_4.250 Base Bore_39.0cc_.990 Pin_OEM Valve Locations_Top Gas Ports
Probe Forged Pistons

Photo is a representative image


 


Available Part Numbers/Oversize

8025-3-14032-000 - 4.250
8025-3-14032-030 - 4.280
8025-3-14032-060 - 4.310
8025-3-14032-070 - 4.320
8025-3-14032-100 - 4.350
8025-3-14032-125 - 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 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

www.P65Warnings.ca.gov


Item# Item Name Price Qty Add
8025-3-14032-000 PRS Pistons_Chevrolet 482_Dome_4.250 Bore_39.0cc
$1,425.00
8025-3-14032-030 PRS Pistons_Chevrolet 489_Dome_4.280 Bore_39.0cc
$1,425.00
8025-3-14032-060 PRS Pistons_Chevrolet 496_Dome_4.310 Bore_39.0cc
$1,425.00
8025-3-14032-070 PRS Pistons_Chevrolet 498_Dome_4.320 Bore_39.0cc
$1,425.00
8025-3-14032-100 PRS Pistons_Chevrolet 505_Dome_4.350 Bore_39.0cc
$1,425.00
8025-3-14032-125 PRS Pistons_Chevrolet 544_Dome_4.375 Bore_39.0cc
$1,425.00
Check the items you wish to purchase, then click


Technical Specs:
Item Code 8025-3-12618-t61
Vendor Probe Industries
Product Type Pistons
Product Model Professional Race Series - PRS
Nitrous 300 H/P
Forced Induction 15 lbs
Engine Displacement 496
Engine Family Chevrolet 454 Big Block
Material 2618-t61 Forged Aluminum
Base Bore 4.250
Stroke 4.250
Rod Length 6.385
Compression Height 1.270
Top Type Dome
Net Piston Volume 39.0
Minimum Deck Thickness .200
Valve Pocket Location OEM Head
Valve Pocket Cutters 2.300 Intake - .000 Exhaust
Valve Pocket Depth .320 Intake - .060 Up Exhaust
Weight 536
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 Yes
Rings Included No
Ring Grooves .043 1/16 3/16 Rings
Gas Ports Top
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
8025-3-14032-000 39.0 13.02 12.60 11.84 11.27
8025-3-14032-030 39.0 13.17 12.74 11.97 11.40
8025-3-14032-060 39.0 13.31 12.88 12.10 11.53
8025-3-14032-070 39.0 13.36 12.93 12.15 11.57
8025-3-14032-100 39.0 13.51 13.07 12.28 11.70
8025-3-14032-125 39.0 13.63 13.19 12.39 11.81
Computed at .050 piston to head clearance



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