Ford 4.1L X Flow Alloy Head Cast Pistons (250 X Flow)

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Engine:   4.1L X Flow Alloy Head OHV 12v (250 X Flow)
Capacity:   4097cc/250ci
Cylinders:   6
Bore Size:   93.47mm/3.68in
Stroke:   99.31mm/3.91in

 Piston Assembly Set
Part # 6MKRY9411 (includes pre-gapped Piston Rings)
Sizes available: 020
 Piston Information  Piston Ring Information
Piston Type Cast Pre­gapped Ring Set Part # M9123
Compression Height 38.86mm/1.529in Sizes Available: 020, 030, 040
Piston Crown Capacity 8cc File Back Ring Set Part #
Dish Sizes Available:
Bowl Depth -1.8mm/-0.070in Ring 1 Ring 2 Ring 3
Rod Length 5.88in Type

Barrel plain

Moly Coated

Reverse torsional taper face scraper Duraflex expander
Compression Ratio at
Total Clearance Volume 		8.8:1 at 91cc Width 1.5mm/0.059in 1.5mm/0.059in 4mm/0.157in
Piston Crown Thickness 5.7 Depth 3.429mm/0.135in 4.064mm/0.16in 3.181mm/0.25in
Piston Mass 470 grams



Pin Mass 120 grams
Pin Diameter 23.55mm/0.927in
Pin Locking Device
 Press Fit
Clearance Stamped on piston crown
Skirt Coated No

 
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