For All Your High Performance Needs

For All Your High Performance Needs

Keith Black KB375-STD Hypereutectic Dome Pistons 4.125 Bore



Availability: Out of stock

Quick Description

SB Chevy 400, Bore 4.125, Stroke 3.750, Rod Length 6.000, Dome +11cc, Set of 8
Keith Black Performance Pistons are offered in Hypereutectic 390 alloy and Forged 4032 low expansion alloy. Their 4032 alloy is preferred for high performance / high compression applications. They offer offset wrist pins for a quiet engine and most have coated skirts. The low expansion alloy allows for a tighter piston to wall running clearance.

Compression Ratio with 62cc Heads 14.9:1
Compression Ratio with 64cc Heads 14.5:1
Advertised piston weight 484 grams, 145 gram wrist pin.
Quick Information

Additional Information

Manufacturer Keith Black
Vehicle Make Chevy SB
Bore Size 4.125
Wrist Pin Size 0.927
Piston Material Hypereutectic
Compression Height 1.130
Piston Ring Size 1/16 1/16 3/16
Piston Type Dome +11cc
Rod Length 6.000
Crankshaft Stroke 3.750
List price No