Keith Black KB350.040 Chevy 377 Hypereutectic Pistons, Dish, 6.0 Rod

Description

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.
For S/B Chevy 377 c.i. (4.125" bore x 3.48" stroke).
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.
Ring Style Chart (GIF)
Item DetailsC/R 58cc=10
Keith Black KB350.040 Chevy 377 Hypereutectic Pistons, Dish, 6.0 Rod
Sku # 474350-040
Mfr. Part # KB350.040
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.
For S/B Chevy 377 c.i. (4.125" bore x 3.48" stroke).
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
Ring Style Chart (GIF)
Item Details
C/R 58cc=10.1, 64cc=9.5, 76cc=8.5
Piston/Pin Weight: 660 g
Rod Length: 6.0", Ring Style: A
Specs
Comp Height 5.7" Rod -  1.561
Comp Height 6.0" Rod -  1.261
Pin Diameter -  0.9272
Charts
(PDF)
WARNING: Cancer and Reproductive Harm -- p65Warnings.ca.gov
California Customers: This part has been identified as emissions sensitive and can only legally be installed on race-use only vehicles, off-road-use only vehicles, or pre-1965 vehicles in the State of California in accordance with the California Air Resource Board (CARB) requirements. Once your order is placed you will be contacted by Speedway Motors within 2 business days so that you can certify that you will only use such parts on these types of vehicles in California.
Specs
Sold in Quantity
Set
Piston Ring Style
A
Connecting Rod Length
6.000"
Piston Style
Dish
Piston Material
Hypereutectic Aluminum
Compression 58cc =
10.1 : 1
Compression 64cc =
9.5 : 1
Compression 76cc =
8.5 : 1
Piston Diameter
4.165
Stroke
3.480
Piston Weight
514
Wrist Pin Weight
145
MFG. Part #
KB350.040
GTIN Code
800745068675
Wrist Pin Diameter
0.9272
Related Items / Suggested Parts
KB Chevy 377 Hypereutectic Pistons, Flat, 6.0 Rod
KB Chevy 377 Hypereutectic Pistons, .150 Dome, 6.0 Rod
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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 69 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.
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