Pistons, Forged, Dish, 3.571 in. Bore, 1.5mm, 1.5mm, 3.0mm Ring Grooves, Ford, Modular, V8, Set of 8

Ford Modular 4.6L / 5.4L 2/4V Forged Pistons

21cc Dish

3.571" Bore (+.020")

4.6L 5.933" Rod; 3.543" Stroke

4.6L C/R: 9.4/42cc; 8.9/46cc; 8.3/52cc

5.4L 6.657" Rod; 4.165" Stroke

5.4L C/R: 8.7/42cc; 8.4/46cc; 8.0/52cc

Alloy: Premium High Ductility 2618

Bore: 3.571" (3.5512" Standard Bore Dimension)

Crankshaft Stroke: 3.543" (4.6L); 4.165" (5.4L)

Connecting Rod Length: 5.933" (4.6L); 6.657" (5.4L)

Deck Height: 8.937" (4.6L); 10.078" (5.4L - Note: Piston sits 0.118" below deck.)

Compression Height: 1.220"

Pin Size: 0.866" x 2.250"

Pin Location: Centered

Effective Head Volume: -21.0cc (Spherical Dish)

Intake Valve Relief: 0.000" Depth / 0.000" Diameter

Exhaust Valve Relief: 0.000" Depth / 0.000" Diameter

Top Landing Height: 0.225"

Ring Grooves: 1.5mm Top; 1.5mm Middle; 3.0mm Bottom

Gram Weight: 345/95 (Piston/Pin)

4.6L Compression Ratio: 9.4:1 w/42cc Heads; 8.9:1 w/46cc Heads; 8.3:1 w/52cc

5.4L Compression Ratio: 8.7:1 w/42cc Heads; 8.4:1 w/46cc Heads; 8.0:1 w/52cc