Silvolite Piston Set, 1058.040

Silv-O-Lite Piston - Ford 239ci/3.9L (V8)

Dome head. Flathead engine. Compression height is to top of dome.

Sold As: Sold as a set, priced per set

Engine Manufacturer: Ford

Engine Family: Ford Flathead V8

OE Cross Reference: 8BA6108A

Engine Displacement (Liters): 3.9

Engine Displacement (cubic inches): 239

Piston Head Type: Dome

Compression Ratio: 7

Top Land: 0.24

Pin Type: Floating

Second Compression Ring Thickness IN: .0938"

Piston Pin Outside Diameter MM: 19.1

Compression Height MM: 44.8

Piston Pin Outside Diameter IN: 0.75

Bore Diameter IN: 3.1875

Top Compression Ring Thickness IN: .0938"

Compression Height IN: 1.763

Oil Ring Thickness IN: .1875"

Bore Diameter MM: 81

Crown Type: DOME

Oversized: Yes

Oversize: .040"

Pin Configuration: Offset

Ring Pack: 3/32, 3/32, 3/16

Year From: 1939

Oversizes: STD, .020, .030, .040, .060, .080.100

Piston Material: Cast 332 Alloy

Lock: 60A

Base Number: 1058

Pin Number: 0750x2225A

Year Range: 1939-1953

Year To: 1953