Diamond 40503 Big Block Ford 385 Race Series Flat Top Pistons -3.25cc, 4.420" Bore, 3.850" Stroke, 6.605" Rod, 1.765" CD, 1.040" x 2.930 Pin

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Price: $1,374.67 Manufacturer: Diamond Racing Products Part No.: 40503 Compression Ratios 68cc          70cc          72cc          11.9:1   12.1:1 12.4:1   Part Number 40503 Bore 4.420" Stroke 3.850" Rod Length 6.605" Comp. Height 1.765" Wrist Pin 1.040" x 2.930" Top Ring Down .285" Piston Material 2618 Alloy Piston Style Flat Top Volume -3.25cc Ring Stack 1/16" x 1/16" x 3/16"   Available Options Moly Skirt Coating Ceramic Dome Coating Hard Anodized Coating  Double Diamond Coating (Hard Anodized and Moly Skirt) 4130 Chrome Moly Wrist Pins 0.155" Wall    Recommended Piston Ring Set- 09024420

Diamond Pro Select 09024420 - Plasma Moly Piston Rings 4.420" Bore 1/16" x 1/16" x 3/16" Price: $183.90 Quantity: * Whole number only