Keith Black Pistons KB349-020 Fits SBF 347 Flat Top 0cc Bore 4.020

Fits SB Ford 347, Bore 4.020, Stroke 3.400, Rod Length 5.400, Flat Top 0cc, Compression Height 1.090, Set of 8 Pistons

$452.59

Piston Options

KB349KTM Ring Set + $105.00

KB349KTD Ring Set + $110.00

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SPECIAL ORDER

This product is only available as a special order and is non-returnable.

DROP SHIP

This product is a non-stocking item for CNC-Motorsports and will be shipped directly from the manufacturer / supplier.

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Description

Keith Black Hypereutectic pistons are a great choice for high performance marine, drag race, circle track, street or towing application builds. The low expansion 390 alloy with 16 percent silicon allows for a tighter piston to wall running clearance.

Fully machined head and valve reliefs

Triple Spiral Lock Rings

CNC machined pin bores produce straight and accurately sized bores

Accumulator Groove aids with compression ring seal

Machined in Oil Returns

Diamond Finished Skirts

Mini Grooves to reduce scuffing and overheating

Wrist pins and spiral lock included

1/16 x 1/16 x 3/16 rings not included

Compression Ratio 55cc 12.2:1, 60cc 11.4:1, 64cc 10.8:1, 69cc 10.2:1

Advertised piston weight 428 grams, 107 gram wrist pin

OE Deck Height 8.206"

Note: Standard bore size is 4.000

Note: Centered Pin, 2.5" long. Spacer ring included. Made with Ford 302 block. Designed for a Ford Sportsman "N" head

Specifications

More Information
CNC Part Number	UEM-KB349-020
Price	$452.59
Sold As	Set
Manufacturer's Part Number	KB349-020
Brands	Keith Black
Part Types	Engine Piston
Departments	Parts
Vehicle Make	Ford SB
Bore Size	4.020
Crankshaft Stroke	3.400
Rod Length	5.400
Piston Type	Flat Top
Compression Height	1.090
Piston Material	Hypereutectic
Piston Ring Size	1/16 1/16 3/16
Wrist Pin Size	0.927