Silvolite Piston Set, 1177HC.020

Silv-O-Lite Piston - Ford 289ci/4.7L (V8)

Hypereutectic flat top with 4 valve reliefs. Compression Ratio: ns with heads: 51cc=9.7;54cc=9.3;58cc=8.8;64cc=8.3;69cc=7.8.

Sold As: Sold as a set, priced per set

Engine Manufacturer: Ford

Engine Family: Ford Small Block Windsor

Engine Displacement (Liters): 4.7

Engine Displacement (cubic inches): 289

Piston Head Type: Flat

Crown (cc): +3cc

Compression Ratio: see notes

Top Land: 0.245

Pin Type: Press

Top Compression Ring Thickness IN: .0781"

Piston Pin Outside Diameter IN: 0.912

Second Compression Ring Thickness IN: .0781"

Compression Height IN: 1.585

Compression Height MM: 40.3

Oil Ring Thickness IN: .1875"

Bore Diameter IN: 4

Bore Diameter MM: 101.6

Pin Number: 0912x301A

Piston Pin Outside Diameter MM: 23.16

Year From: 1977

Base Number: 1177HC

Year To: 1986

Oversized: Yes

Pin Configuration: Offset

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

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

Oversize: .020"

Piston Material: Cast 390 Hypereutectic Alloy

Year Range: 1977-1986

Crown Type: FLAT TOP