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Comp Ratio base on: .050 piston to head clearance (deck & gasket)
Block Height: 400=9.980, 440=10.725
Forced Induction: No
Nitrous: Yes - up to 250 HP
Pins: dia as indicated
Ring Grooves: 1/16, 1/16, 3/16
Tech Tip: Bushings to reduce rod pin hole to .990dia are available

Chrysler Big Block
Dome Top Pistons Open/Closed Chamber
Includes: Pistons, Pins, Spiro Lox
  • ROSS dome top big block Chrysler pistons listed in this section feature special hollow dome forgings for maximum strength with minimum weight.
  • Will work with open or closed chamber heads.
  • Suitable for nitrous systems of 250 horsepower or less.
  • Pins included are aircraft quality and are retained by double spiro lox or can be press fitted in rods.
  • Pin location (compression height) used on these pistons will give .017 deck clearance in a new 9.980 400 block or a 10.725 tall 440 block.
  • Ring grooves are 1/16, 1/16, 3/16.
  • Compression ratio based on .050 total piston to head clearance (with deck and gasket).
  • NOTE: Bushings to reduce rod pin hole to .990 diameter are available from ROSS. Call for info 603.378.0090
  • NOT RECOMMENDED FOR HEAVILY BLOWN OR SUPER-CHARGED APPLICATIONS
  • 400 STANDARD BORE = 4.342, STROKE = 3.375, R/L = 6.358
  • 440 STANDARD BORE = 4.320, STROKE = 3.750. R/L = 6.768
BLK Bore Stroke Rod
Lgth		 Dome
CC		 Comp Ratio
w/Head CC of:		 Pin
Diam		 C.H. Gram
Wt		 Part # Price/
Set
64 75 86
400  4.375  3.750  6.768  14.0  15.3 13.2 11.7 0.990  1.320  563  99499 $609
400  4.375  3.750  6.768  14.0  15.3 13.2 11.7 1.094  1.320  555  99500 $609
440  4.350  3.750  6.768  14.0  15.1 13.1 11.6 0.990  2.065  704  99501 $609
440  4.350  3.750  6.768  14.0  15.1 13.1 11.6 1.094  2.065  691  80762 $609
440  4.350  3.750  6.768  14.0  15.1 13.1 11.6 1.094  2.065  707  80761 $609
440  4.350  4.150  6.768  14.0  16.7 14.4 12.7 0.990  1.865  630  99542 $609
440  4.350  4.150  6.768  14.0  16.7 14.4 12.7 1.094  1.865  659  99543 $609
440  4.360  3.750  6.768  14.0  15.2 13.1 11.6 1.094  2.065  690  81762 $609
440  4.360  3.750  6.768  14.0  15.2 13.1 11.6 0.990  2.065  662  99782 $609
440  4.375  3.750  6.768  14.0  15.3 13.2 11.7 0.990  2.065  679  99503 $609
440  4.375  3.750  6.768  14.0  15.3 13.2 11.7 1.094  2.065  680  82007 $609
440  4.375  4.150  6.768  14.0  16.8 14.5 12.8 0.990  1.865  660  99545 $609
440  4.375  4.150  6.768  14.0  16.8 14.5 12.8 1.094  1.865  657  99544 $609
Notes: (when applicable)
  1. Price includes Oil Ring Spacers.
  2. Ludicrous Liteness Design.
  3. Indicates 1/16, 1/16, 1/8 rings utilized.
  4. Will also work with 17/18 degree heads.
 
 
 
 
 
 
 
 
Sales/Tech Line: (603) 378-0090
Email: tech@flatlanderracing.com

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*All prices on this site are subject to change without notice. Flatlander Racing™ disclaims responsibility for any printing or typographical errors, and does not guarantee that all information is accurate.

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