Keith Black KB129.040 Hypereutectic Fits Chevy 400 Pistons/6.0 Rod

Description: Allows undercut areas above the pin hole material distribution in the skirt area that stiffens the entire piston, T-5 heat treated pistons also offer reduced thermal expansions, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blowby, 4.000" bores available in .030", .040" and .060" oversizes, Feature a single trench valve relief Keith Black KB129.040 Hypereutectic Chevy 400 Pistons/6.0 Rod Sku # 474129-040 Mfr. Part # KB129.040 Condition New Brand Keith Black Sold Set Details Info Keith Black Hypereutectic pistons are favored for their improved power and reduced scuffing. The unique design & manufacturing processes combine to produce a rigid piston, which will rock less in the bore improving ring seal. These T-5 heat treated pistons also offer reduced thermal expansion, which allows you to run tighter clearances and allows the piston rings to seal better and minimize blow-by. 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 Lightweight wrist pins For Chevy 400 c.i. (4.125" bore x 3.75" stroke).Item DetailsC/R 58cc=14.1, 64cc=13.0, 76cc=11.2 Piston/Pin Weight: 645 g Rod Length: 6.0", Ring Style: C Specs Comp Height 5.565" Rod - 1.561Comp Height 5.7" Rod - 1.433Comp Height 6.0" Rod - 1.13Pin Diameter - 0.9272 Charts (PDF) (GIF) Specs Sold in Quantity Set Piston Ring Style C Connecting Rod Length 6.000" Piston Style Dome Piston Material Hypereutectic Aluminum Top Ring Thickness 1/16" Second Ring Thickness 1/16" Oil Ring Thickness 3/16" Compression 58cc = 14.1 : 1 Compression 64cc = 13.0 : 1 Compression 76cc = 11.2 : 1 Piston Diameter 4.165 Stroke 3.750 Dome Height .150 Piston Weight 500 Wrist Pin Weight 145 MFG. Part # KB129.040 GTIN Code 800745045386 Wrist Pin Diameter 0.9272 Wrist Pin Included Yes Wrist Pin Style Press-Fit or Floating Reviews Yes Rated by Rex on November 30, 2017 Summary: Building a 408 SB chevy for 1978 el camino bracket racer Pros: Love Speedway Yes, I recommend this product. Related Items / Suggested Parts KB Chevy 400 Hypereutectic Pistons, Flat Top, 5.7 Rod KB Chevy 400 Hypereutectic Pistons, .100 Dome, 5.7 Rod KB Chevy 400 Hyperutectic Pistons, Flat Top, 6.0 Rod KB Chevy 400 Hypereutectic Pistons, Dish, 6.0 Inch Rod KB Chevy 400 Hypereutectic Pistons, Dish, 5.7 Inch Rod 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: 389.99 USD

Location: Lincoln, Nebraska

End Time: 2025-02-04T12:02:29.000Z

Shipping Cost: 0 USD