Description: 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 Keith Black KB246.040 .040 Over Hypereutectic 302/347 Ford Pistons Sku # 474246-040 Mfr. Part # KB246.040 Condition New Brand Keith Black Sold Set Details Info 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 DetailsC/R 64cc: 10.0, C/R 69cc: 9.5 Bore and Stroke: 4.00" x 3.40" Rod Length: 5.400" Ring Style: C Specs Pin Diameter: .927" Charts (PDF) (GIF) Specs Sold in Quantity Set Piston Ring Style C Connecting Rod Length 5.400" Piston Material Hypereutectic Aluminum Piston Style Flat Top w/ 2 valve reliefs Top Ring Thickness 1/16" Second Ring Thickness 1/16" Oil Ring Thickness 3/16" Piston Diameter 4.040 Stroke 3.400 Piston Weight 429 MFG. Part # KB246.040 GTIN Code 800745059413 Wrist Pin Diameter 0.9272 Compression 64cc = 10.0 : 1 Wrist Pin Weight 107 Wrist Pin Included Yes Wrist Pin Style Press-Fit or Floating Related Items / Suggested Parts Icon Ford 347 Forged Pistons, .150 Dome, 5.4 Rod 4 Bore SBC Gas Proven C Piston Rings .040 Over Bore-Small Block Chevy Tech Support We're here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through eBay Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 73 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
Price: 424.99 USD
Location: Lincoln, Nebraska
End Time: 2025-01-26T13:08:31.000Z
Shipping Cost: 0 USD
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Item Specifics
Return shipping will be paid by: Seller
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
Return policy details:
Brand: Keith Black
Type: Pistons
Piston Diameter: 4.040 "
Manufacturer Part Number: KB246.040
California Prop 65 Warning: True
