Silvolite Piston Set, 3474HC.030

Silv-O-Lite Piston - Chevrolet 454ci/7.4L (V8)

Hypereutectic. Marine engine. .340 high dome with 2 valve reliefs. Coated skirts. Centered pin.

Sold As: Sold as a set, priced per set

Engine Manufacturer: Chevrolet

Engine Family: Chevy Big Block Mark IV

Engine Displacement (Liters): 7.4

Engine Displacement (cubic inches): 454

Piston Head Type: Dome

Top Land: 0.287

Pin Type: Floating

Pin Configuration: Centered

Bore Diameter MM: 108

Piston Pin Outside Diameter MM: 25.1

Piston Pin Outside Diameter IN: 0.99

Compression Height IN: 1.645

Bore Diameter IN: 4.25

Oil Ring Thickness IN: .1875"

Compression Height MM: 41.7

Top Compression Ring Thickness IN: .0781"

Second Compression Ring Thickness IN: .0781"

Oversize: .030"

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

Year Range: 1970-2000

Lock: PRG110-3

Pin Number: 0990x300K

Oversized: Yes

Year From: 1970

Crown Type: DOME

Piston Material: Cast 390 Hypereutectic Alloy

Ring Pack: 5/64, 5/64, 3/16

Year To: 2000

Base Number: 3474HC