$102 Off

KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod

$102 Off

Keith Black

#474246

KB Ford 347 Hypereutectic Pistons, Flat Top, 5.4 Rod

The reflective alloy allows 2% power increase
Features fully machined crowns and valve reliefs
Has drilled oil drain backs and full floating wrist pins

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$434.67

In Stock

$536.63

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Product Summary

Flat Top w/ 2 valve reliefs Piston Style, 3.400" Stroke

The reflective alloy allows 2% power increase
Features fully machined crowns and valve reliefs
Has drilled oil drain backs and full floating wrist pins
Specially quench dome technology minimizes deterioration
Made entirely from 390 Hypereutectic alloy that weighs only 429 grams

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Key Specs

MFG. Part #	Select Oversize
Piston Style	Flat Top w/ 2 valve reliefs
Piston Material	Hypereutectic Aluminum
Wrist Pin Included	Yes
Wrist Pin Style	Press-Fit or Floating

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Details

Keith Black Hypereutectic pistons are T-6 heat treated and offer reduced scuffing and improved durability over stock replacement pistons. They also allow you to run tighter clearances because of reduced thermal expansion, which means more race winning power.

390 Hypereutectic alloy
Fully machined crowns and valve reliefs
Drilled oil drain backs
Full floating wrist pins
Triple wound spiral locks
Reflective alloy allows 2% power increase
Quench dome technology minimizes deterioration
Zero deck quench designs

For Ford 347 c.i. (4.00" bore x 3.40" stroke). Use piston ring Style C (1/16", 1/16", 3/16").

Item Details

C/R 64cc: 10.0, C/R 69cc: 9.5
Bore and Stroke: 4.00" x 3.40"
Rod Length: 5.400" Ring Style: C

Charts

474-246 Instructions (PDF)

Ring Style Chart (GIF)

Specs

Pin Diameter: .927"

Guides & Documents

Pistons Installation Instructions (474246)

Pistons Technical Information (474246)

Installation Instructions (Keith Black)

CARB Warning

For race/ off road use or for use on pre-1966 vehicles.

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway, or if installed in vehicles model-year 1965 or older; motorcycles model-year 1977 or older; or off-highway recreational vehicles (such as off-road motorcycles and all-terrain vehicles) model-year 1996 and older. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Specifications

KEY SPECS
MFG. Part #	Select Oversize to see
Brand	Keith Black
Piston Style	Flat Top w/ 2 valve reliefs
Piston Material	Hypereutectic Aluminum
Wrist Pin Included	Yes
Wrist Pin Style	Press-Fit or Floating

GENERAL
Piston Diameter	Select Oversize to see
Stroke	3.400"
Connecting Rod Length	5.400"
Piston Weight	429 grams
Piston Ring Style	C
Wrist Pin Diameter	0.9272"
Wrist Pin Weight	107 grams
Top Ring Thickness	1/16"
Second Ring Thickness	1/16"
Oil Ring Thickness	3/16"
Compression 64cc =	10.0 : 1
GTIN Code	Select Oversize to see
Sold in Quantity	Set

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Questions & Answers

1 Question • 1 Answer

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I find Ford KB 302/347 pistons(though I'm really interested in the stroker kit) on your web site, but I don't find Ford piston rings.

by Paul

• 15 years ago

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