Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
![K8140-4155 SX-Series Flat Top Piston Set for 1955-2004 Small Block Chevy, 4.155 in. Bore, -5cc Volume [Stroker]](https://www.jegs.com/images/mini_750/900/915/915-k8140-4155.jpg)
Vehicle Info NeededDSS RACINGPART NUMBER: 915-K8140-4155
K8140-4155 SX-Series Flat Top Piston Set for 1955-2004 Small Block Chevy, 4.155 in. Bore, -5cc Volume [Stroker]
$87895
Ships on 09/14/2026
Lowest Price GuaranteeChevy Small Block
SX-Series Flat Top Piston Set1955-2004 Small Block Chevy Bore: 4.155 in. Head Volume: -5cc Material: Forged 4032 Pin Diameter: .927 in. Pin Style: Press or Full Floating Ring Thickness: 1/16-1/16-3/16 in. Stroker Set of 8
DSS Racing K8140-4155 Features:
- Forged from Wear Resistant 4032 Alloy
- Light Weight Design
- Machined Valve Reliefs for Moderate Performance Head and Cam Combinations
- Precision CNC Finished Pin Bores
- Heavy-Duty Piston Pins
- Full Floating or Press Fit
- Double True Arc Pin Locks Provide Redundancy
- Drilled Oil Ring Drain Backs
- Precision Diamond-Turned Skirts
- Boost and NOS Ready! (Mild to Moderate Levels)
- Includes matching DSS Racing Ductile Moly ring set.
- Ring Set Required: RS-DM400-4155
- Ring Series: DM400
- Fits Base Engine: 396
- Cylinder Head Style: 23-Degree
- Compression Ratio: 58cc-12.97, 64cc-12.05, 70cc-11.26
- Calculated Zero Deck: 8.9995
- Compression Height: 1.362 in.
- Rod Length: 5.7 in.
- Stroke: 3.875 in. (Stroker)
- Pin Locking Rings Included: Yes
- Wrist Pin Included: Yes
- Oil Rail Support Ring Included: N/A
- With Rings Without Rings: With Rings
- Total Valve Reliefs: 2
Quality Forged Piston Sets with Rings
DSS Racing SX-Series forged piston and ring kits are a budget-friendly way to increase your engine's horsepower. These high-performance pistons are made of premium aluminum alloy and come with quality features, including forced pin oiling, drilled return holes, a turned dish design, and CNC diamond-turned skirts—not typically found in pistons at this price point. Whether using a blower, turbo, or nitrous, SX-forged pistons will quench your quest for horsepower.
Part TypePiston
Product LineDSS Racing SX-Series Forged 4032 Piston and Ring Kits
BrandDSS RACING
Package Height10.0
Package Width10.0
Package Length10.0
Weight17.0 PG
Part CategoryPerformance Parts
Pin Lock Rings IncludedYes
Compression Height (In)1.362
Bore (In)4.155
Wrist Pin StylePress or Full Floating
QuantitySet of 8
Piston Head Volume-5cc
Piston StyleFlat Top
Compression Ratio58cc-12.97, 64cc-12.05, 70cc-11.26
Ring Thickness1/16-1/16-3/16"
Piston MaterialForged 4032
Pin Diameter (In)0.927
Part FitmentSemi Universal
Wrist Pin IncludedYes
Snap Rings IncludedYes
Vendor Part NumberK8140-4155
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
![Engine Assembly Lube [4 oz. Bottle]](https://www.jegs.com/images/mini_200/500/555/555-28000.jpg)
JEGS
Piston Ring Pliers Installs and Removes Rings without Breakage
Part Number : 555-80845
$647$6.99
You Save$0.52
PROFORM
Piston Installation Kit Includes: Universal Ring Squaring Tool, Ring Compressor, & Heavy Duty Piston Install Tool
Part Number : 778-67652K3
$9622
JEGS
Wrinkle Band Ring Compressor Adjustable for 3" -5" Bore Sizes
Part Number : 555-W80574
$1599$17.99
You Save$2.00
JEGS
32-Blade Feeler Gauge Kit 0.0015" to 0.035" (0.038mm to 0.889mm)
Part Number : 555-80500
$999$10.99
You Save$1.00
JEGS
Premium 10-Blade Feeler Gauge Kit 0.015 in. to 0.035 in. (0.381mm to 0.889mm)
Part Number : 555-80502
$1777$20.99
You Save$3.22
JEGS
Offset 12-Blade Feeler Gauge Kit 0.008" to 0.026" (0.203mm to 0.660mm)
Part Number : 555-80501
$1499$16.19
You Save$1.20
![Engine Piston Ring Filer with Abrasive Wheel [Hand Crank]](https://www.jegs.com/images/mini_200/700/778/778-66785.jpg)
PROFORM
66765 Electric Piston Ring Filer, Electronic Rechargeable Model
Part Number : 778-66765
$32999$359.99
You Save$30.00
![Break-In Oil, 10W30 [1 Quart, 32 oz.]](https://www.jegs.com/images/mini_200/500/555/555-28067.jpg)
JEGS
Engine Storage Bag 48 in. L x 35 in. W x 34 in. H
Part Number : 555-80039
$1199$12.99
You Save$1.00
![Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]](https://www.jegs.com/images/mini_200/500/555/555-81156.jpg)
JEGS
Mechanic Chair & Step Stool on Wheels [300 lb. Capacity]
Part Number : 555-81156
$9099$111.99
You Save$21.00
JEGS
Part Number : 555-80845
$647$6.99
You Save$0.52
PROFORM
Part Number : 778-67652K3
$9622
JEGS
Part Number : 555-W80574
$1599$17.99
You Save$2.00
Some parts are not legal for use in California or other states with similar laws / regulations
