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Wiseco Pro Tru Forged Pistons; Flat Top; For Blower Apps; Set of 8 Pistons; Rings Included; Replacement Ring: 4500H; Replacement Piston: 5073HS CHEVROLET 502 BIG BLOCK


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Part #: PT073HS
Notes: Pro Tru Forged Pistons
Flat Top
For Blower Apps
Set of 8 Pistons
Rings Included
Replacement Ring: 4500H
Replacement Piston: 5073HS
MSRP: $698.95
Your Price: $638.48
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Specs

Bore 4.500"
Comp Height 1.645
Comp Ratio @ 119cc 8.7:1
Dome Volume -2.4cc
Gram Weight 509
Rod 6.135"
Stroke 4.000"

This Item Also Available In

Part Number Price Notes & Specs
PT073H3 $638.48 Notes Pro Tru Forged Pistons
Flat Top
For Blower Apps
Set of 8 Pistons
Rings Included
Replacement Ring: 4530H
Replacement Piston: 5073H3
Bore 4.530"
Comp Height 2.645
Comp Ratio @ 119cc 8.7:1
Dome Volume -2.4cc
Gram Weight 516
Rod 6.135"
Stroke 4.000"
PT092HS $0.00 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Set of 8 Pistons
Rings Included
Replacement Ring: 4500H
Replacement Piston: 5092HS
Bore 4.500"
Comp Height 1.395
Comp Ratio @ 112cc 11.1:1 / 12.3:1
Comp Ratio @ 119CC 10.4:1 / 11.6:1
Dome Volume +21cc
Gram Weight 509 - 516 / 572 - 580
Rod 6.385" / 6.135" / 6.535"
Stroke 4.000" / 4.500" / 4.500"
PT102H100 $693.98 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Set of 8 Pistons
Rings Included
Replacement Ring: 4600H
Replacement Piston: 5102H100
Bore 4.600"
Comp Height 1.27
Comp Ratio @ 112cc 11.5:1
Comp Ratio @ 119CC 10.9:1
Dome Volume +15cc
Gram Weight 565
Rod 6.385"
Stroke 4.250"
PT077H3 $675.95 Notes Pro Tru Forged Pistons
Mini Dome
Set of 8 Pistons
Rings Included
Replacement Ring: 4500H
Replacement Piston: 5077H3
Bore 4.500"
Comp Height 2.645
Comp Ratio @ 119cc 9.0:1
Dome Volume +3.9
Gram Weight 509
Rod 6.135"
Stroke 4.000"
5102H3 $108.27 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Replacement/Individual Piston
Rings Included
Replacement Ring: 4530H
Bore 4.530"
Comp Height 1.27
Comp Ratio @ 112cc 11.2:1
Comp Ratio @ 119CC 10.6:1
Dome Volume +15cc
Gram Weight 548
Rod 6.385"
Stroke 4.250"
PT102H6 $693.98 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Set of 8 Pistons
Rings Included
Replacement Ring: 4560H
Replacement Piston: 5102H6
Bore 4.560"
Comp Height 1.27
Comp Ratio @ 112cc 11.4:1
Comp Ratio @ 119CC 10.7:1
Dome Volume +15cc
Gram Weight 555
Rod 6.385"
Stroke 4.250"
PT102HS $693.98 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Set of 8 Pistons
Rings Included
Replacement Ring: 4500H
Replacement Piston: 5102HS
Bore 4.500"
Comp Height 1.27
Comp Ratio @ 112cc 11.1:1
Comp Ratio @ 119CC 10.5:1
Dome Volume +15cc
Gram Weight 540
Rod 6.385"
Stroke 4.250"
5073H3 $91.99 Notes Pro Tru Forged Pistons
Flat Top
For Blower Apps
Replacement/Individual Piston
Rings Included
Replacement Ring: 4530H
Bore 4.530"
Comp Height 2.645
Comp Ratio @ 119cc 8.7:1
Dome Volume -2.4cc
Gram Weight 516
Rod 6.135"
Stroke 4.000"
5102HS $108.27 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Replacement/Individual Piston
Rings Included
Replacement Ring: 4500H
Bore 4.500"
Comp Height 1.27
Comp Ratio @ 112cc 11.1:1
Comp Ratio @ 119CC 10.5:1
Dome Volume +15cc
Gram Weight 540
Rod 6.385"
Stroke 4.250"
PT102H3 $693.98 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Set of 8 Pistons
Rings Included
Replacement Ring: 4530H
Replacement Piston: 5102H3
Bore 4.530"
Comp Height 1.27
Comp Ratio @ 112cc 11.2:1
Comp Ratio @ 119CC 10.6:1
Dome Volume +15cc
Gram Weight 548
Rod 6.385"
Stroke 4.250"
5092H3 $100.60 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Replacement/Individual Piston
Rings Included
Replacement Ring: 4530H
Bore 4.530"
Comp Height 1.395
Comp Ratio @ 112cc 11.1:1 / 12.3:1
Comp Ratio @ 119CC 10.4:1 / 11.6:1
Dome Volume +21cc
Gram Weight 509 - 516 / 572 - 580
Rod 6.385" / 6.135" / 6.535"
Stroke 4.000" / 4.500" / 4.500"
5102H100 $108.27 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Replacement/Individual Piston
Rings Included
Replacement Ring: 4600H
Bore 4.600"
Comp Height 1.27
Comp Ratio @ 112cc 11.5:1
Comp Ratio @ 119CC 10.9:1
Dome Volume +15cc
Gram Weight 565
Rod 6.385"
Stroke 4.250"
5102H6 $91.24 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Replacement/Individual Piston
Rings Included
Replacement Ring: 4560H
Bore 4.560"
Comp Height 1.27
Comp Ratio @ 112cc 11.4:1
Comp Ratio @ 119CC 10.7:1
Dome Volume +15cc
Gram Weight 555
Rod 6.385"
Stroke 4.250"
5073HS $91.99 Notes Pro Tru Forged Pistons
Flat Top
For Blower Apps
Replacement/Individual Piston
Rings Included
Replacement Ring: 4500H
Bore 4.500"
Comp Height 1.645
Comp Ratio @ 119cc 8.7:1
Dome Volume -2.4cc
Gram Weight 509
Rod 6.135"
Stroke 4.000"
5077H04 $100.60 Notes Pro Tru Forged Pistons
Mini Dome
Replacement/Individual Piston
Rings Included
Replacement Ring: 4470H
Bore 4.470"
Comp Height 1.645
Comp Ratio @ 119cc 8.9:1
Dome Volume +3.8
Gram Weight 502
Rod 6.135"
Stroke 4.000"
5077H3 $100.60 Notes Pro Tru Forged Pistons
Mini Dome
Replacement/Individual Piston
Rings Included
Replacement Ring: 4500H
Bore 4.500"
Comp Height 2.645
Comp Ratio @ 119cc 9.0:1
Dome Volume +3.9
Gram Weight 509
Rod 6.135"
Stroke 4.000"
5092HS $100.60 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Replacement/Individual Piston
Rings Included
Replacement Ring: 4500H
Bore 4.500"
Comp Height 1.395
Comp Ratio @ 112cc 11.1:1 / 12.3:1
Comp Ratio @ 119CC 10.4:1 / 11.6:1
Dome Volume +21cc
Gram Weight 509 - 516 / 572 - 580
Rod 6.385" / 6.135" / 6.535"
Stroke 4.000" / 4.500" / 4.500"
PT077H04 $675.95 Notes Pro Tru Forged Pistons
Mini Dome
Set of 8 Pistons
Rings Included
Replacement Ring: 4470H
Replacement Piston: 5077H04
Bore 4.470"
Comp Height 1.645
Comp Ratio @ 119cc 8.9:1
Dome Volume +3.8
Gram Weight 502
Rod 6.135"
Stroke 4.000"
PT092H3 $0.00 Notes Pro Tru Forged Pistons
Domed, Race Version
15cc and 21cc Domes may be Cut to Flat Tops
Approx 2.7cc's Lost for Every .025" Cut
Set of 8 Pistons
Rings Included
Replacement Ring: 4530H
Replacement Piston: 5092H3
Bore 4.530"
Comp Height 1.395
Comp Ratio @ 112cc 11.1:1 / 12.3:1
Comp Ratio @ 119CC 10.4:1 / 11.6:1
Dome Volume +21cc
Gram Weight 509 - 516 / 572 - 580
Rod 6.385" / 6.135" / 6.535"
Stroke 4.000" / 4.500" / 4.500"

All Fitments

CHEVROLET
Year Model SubModel Cylinders Liter Aspiration Eng Desg. Fuel Notes
1985 - 2010 502 BIG BLOCK ALL ALL ALL ALL ALL ALL

Product Description

World renowned for our work building race winning pistons, Wiseco utilizes experience from a diverse background of the most sophisticated engines.

Wiseco’s Pro Tru line creates the best value in forged pistons today. These American made pistons are forged and machined by skilled Ohio craftsmen with state-of-the-art forging presses and CNC machines. By using dedicated forgings specific to the final piston shape, Pro Tru pistons are stronger and lighter than industry standards.

Pro Tru sets include plasma moly 1/16, 1/16, 3/16 pre-gapped ring packages which provide excellent seal, friction reduction, and long life. Pro Tru pistons also come in a variety of volumes that allow the engine builder to choose the exact compression ratio required for their engine.

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