Image is a representation of this item. Actual item may vary.
Part Number:
DRP-61000

61000 Diamond Pistons Pontiac 455 Forged Flat Top 4.155 Bore

Fits Pontiac 455, Bore 4.155, Stroke 4.210, Rod Length 6.625, Flat Top -4.6cc, Set of 8 Pistons, Made to order

$1,279.95
View Similar Items
⚠ PROP 65 WARNING
⚠ WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer. Please contact us to obtain a list of harmful chemicals. For more information, go to www.P65Warnings.ca.gov.
Diamond Pistons are some of the best aftermarket pistons on the market. Trust your new engine with a set of Diamond Pistons
  • Designed for use with OEM & Aftermarket cylinder heads
  • Ratios figured for .040 head gasket @ 10.225 deck
  • Premium 1/16 1/16 3/16 ring package available
  • Premium 8620 .155" wall wrist pins included
  • Top Ring down = .200"
  • Accommodates a maximum intake valve size of 2.150"
  • Valve relief depth= .209" intake and symmetrical exhaust


    Compression Ratio with 72cc Heads 11.4:1
    Compression Ratio with 77cc Heads 10.8:1
    Compression Ratio with 87cc Heads 9.9:1
    Piston weight - 505 Grams
    Made to order
  • More Information
    CNC Part Number DRP-61000
    Price $1,279.95
    Manufacturer's Part Number 61000
    Brands Diamond
    Part Types Engine Piston
    Departments Parts
    Vehicle Make Pontiac
    Bore Size 4.155
    Crankshaft Stroke 4.210
    Rod Length 6.625
    Piston Type Flat Top
    Compression Height 1.480
    Piston Material 4032 Forged
    Piston Ring Size 1/16 1/16 3/16
    Wrist Pin Size 0.980
    Custom Notices ⚠ PROP 65 WARNING
    Other Customers Also Bought
    PART #: FRG-482388 482388 Fragola -8AN x 1/2" MPT 45 Degree Adapter
    482388 Fragola -8AN x 1/2" MPT 45 Degree Adapter
    $8.79
    PART #: TS-CR4920-65 CR4920-65
    Total Seal Classic Race Piston Ring Set CR4920-65
    $194.12
    PART #: JE-257962 JE Pistons 257962 Forged Big Block Flat Top 4.560 Bore, Standard Deck Block
    JE Pistons 257962 Forged Big Block Flat Top 4.560 Bore, Standard Deck Block
    Special Price $969.29 Regular Price $1,076.99
    PART #: UEM-KB136-030 Keith Black Pistons KB136-030 Fits SBF 351W Dome 1cc Bore 4.030
    Keith Black Pistons KB136-030 Fits SBF 351W Dome 1cc Bore 4.030
    Special Price $507.28 Regular Price $515.01
    PART #: QFT-30-155QFT 30-155QFT Quick Fuel 155 GPH ELECTRIC FUEL PUMP
    30-155QFT Quick Fuel 155 GPH ELECTRIC FUEL PUMP
    $311.95
    PART #: DRP-09204625-R1 09204625-R1 Diamond Pro Select Piston Rings 4.625 Bore, .043 .043 3.0mm
    09204625-R1 Diamond Pro Select Piston Rings 4.625 Bore, .043 .043 3.0mm
    $329.99
    PART #: FRG-482404BL 482404BL Fragola -4AN TEE Adapter  Black
    482404BL Fragola -4AN TEE Adapter Black
    $8.97
    PART #: HOW-95418-8 CNC Motorsports 17100-16 5/16" .080 Wall Pushrods 7.100" Length
    Howards 95418-8 3/8" .080 Wall Pushrods 8.500" Length
    $105.98
    PART #: FRG-650166 650160 Fragola 9/16 - 18 Steel Banjo Bolt
    650166 Fragola 12mm X 1.25 Steel Banjo Bolt
    $5.91