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Call us at
316-440-2828
RING GROOVES
| Ring Grooves | |
| Compression ring groove | 7.25 |
| All .7mm or smaller | 8.50 |
| Second ring groove | 6.75 |
| Oil ring groove | 7.00 |
| Dykes ring groove | 8.25 |
| Accumulator groove | 3.75 |
| Upper land scuff grooves | 4.25 |
| Upper ring land taper | 4.50 |
| Upper ring land diameter | 3.75 |
LIGHTEN AND BALANCE
All piston lightening operations are custom setups. Each operation is performed for maximum material removal without sacrificing structural stability. Listed prices are for 4 to 8 pieces. A 10% discount may be applied to 10 or more identical pieces.
MANUAL OPERATIONS
| Manual Lightening Operations | |
| One | 6.00 |
| Two | 12.00 |
| Three | 17.00 |
| Four | 21.00 |
| Five | 25.00 |
| Six | 28.50 |
| Seven | 33.00 |
| Eight | 36.50 |
| Additional Operations | 3.50 |
CNC LIGHTENING OPERATIONS
Due to the wide variety of piston forgings, styles, and sizes, not all pistons are candidates for CNC. In some cases we can redesign the internal forging to remove excess material without significantly weakening the structure of the piston.
| CNC Lightening | |
| CNC Offset Valve Relief Slot | 7.50 |
| CNC Full internal mill single level open forging stocker type | 17.50 |
| CNC full internal milling multiple level open forging wedge type | 22.50 |
| CNC box type forging deck milling w/ bal. | 25.00 |
| CNC ramp cut hemi type floor | 7.50 |
| Radius pin bosses / custom rod clearance | 5.50 |
| additional manual operations ea. | 4.00 |
| Rod slot set 90 degrees to pin | 6.50 |
WRIST PIN HOLES
| Pin Holes | |
| Pin fitting | 7.75 |
| counter bore for pin fitting | 3.50 |
| Upper pin oilers, single feed oil groove fed | 7.50 |
| Upper pin oilers, double feed oil groove fed | 12.50 |
| Upper pin oiler BD slot across pin width | 6.75 |
| Lower pin oiler splash holes | 4.75 |
| Keeper Grooves for Spiro-lox, single or double | 8.50 |
| Single or double access slots for Spiro-lox | 4.75 |
Special Request Flow Cuts
| Flow Cuts | |
| Flow cut common to pocket setup | 3.75 |
| Flow cut requiring special setup | 5.00 |
| Shroud height | 3.50 |
| Shroud height and deck tabs | 5.00 |
| Fire slot | 4.25 |
| Dome flow cut tapered 360 degrees around piston | 3.85 |
Hand Finishing
| Hand Finish | |
| Flap only | 3.50 |
| Semi finish trash removal debur / flap | 5.50 |
| Hand finish deck surfaces 100% complete radius edges | 7.50 |
| Hand finish 100% complete with abrasive blast | 8.75 |
Piston Coatings
| Piston Coatings | |
| Molykote skirts | 14.50 |
| Thermal barrier coat deck | 14.50 |
| Molykote skirts and deck as a combined operation | 27.50 |
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