1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
Load image into Gallery viewer, 1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
Load image into Gallery viewer, 1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
Load image into Gallery viewer, 1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
Load image into Gallery viewer, 1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
Load image into Gallery viewer, 1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"
Load image into Gallery viewer, 1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore COMP HEIGHT: 1.165"

PART #: 1864-3840

1864-3840 4.8 - 5.3 - LS1 - LS6 - Stroker Chevy LS SX Series -22cc Dish Top LS1,LS2,LS3 and LS7 Forged Piston Set 3.840 inch bore Pin Dia.: 0.927" Comp Height: 1.165"

$599.95
$599.95
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Ships in 1 - 8 days

Ships in 1 - 8 days

Made in the USA

Made in the USA

Secure Payment

Secure Payment

Piston & Ring Kit Option:
This is a pre order item. We will ship it when it comes in stock.

361 Chevy LS, SX, Comp Height: 1.165, -22cc Dish Top, PIN: .927", Full Floating or Press Fit, Ring Groove: 1.5/1.5/3MM, Stroke: 3.900", ROD: 6.125, Approx Comp Ratio: 64cc-8.9, 66cc-8.74, 72cc-8.28


Engine Brand: Chevy

Engine Family: Chevy LS

Engine Size: 4.8 - 5.3 - LS1 - LS6 - Stroker

With/Without Rings: Without Rings

Cylinder Bore Size: 3.840 in , 97.459 mm

Ring Width: 1.5/1.5/3MM

Compression Height: 1.165"

Pin Diameter: 0.927"

Connecting Rod Length: 6.125"

Crankshaft Stroke: 3.900"

Piston Series: SX 4032 Alloy

Alloy: 4032 Alloy

Cylinder Head: LS1,LS2,LS3 and LS7

TDC Assembly Height: 9.240"

Piston Top Aprox. Comp. Ratio:

-22cc Dish Top LS1,LS2,LS3 and LS7
ChamberComp Ratio
648.9 to 1
668.74 to 1
728.28 to 1

Download Piston Instructions

 
Features: Piston Series
 

E series

  SX series  1-FX series  2-FX series  3-FX series
Broached pin oiling slots

x

x

 

 

 
Drilled, forced wrist pin oiling

 

x

x

x

x
Forged drain-back windows

x

 

 

 

 
Drilled bottom ring land intersecting oil groove drain-backs

 

x

x

x

x
Slightly larger, deeper valve reliefs than OEM

x

 

 

 

 
CNC machined valve reliefs for moderate performance heads and cam combinations

 

x
Larger, deeper CNC valve reliefs for more aggressive cylinder head and cam combinations

 

 

x

x

x
Premium Aircraft spec. 4032 low expansion alloy

x

x

x

 

 
Premium Aircraft spec. 2618 alloy

 

 

 

x

x
Blower, Turbo, NOS ready

 

x

x

x

x
Brushed piston crown

 

 

x

x

x
Turned dishs

x

x

 

 

 
Max Quench milled dishs

 

 

x

x

x
Additional CNC milling for weight reduction in non-critical areas

 

 

x

x

x
Patented “X Groove” skirt for superior cylinder and ring life

 

 

x

x

x
Thinner/shallower Ring grooves for maximum ring seal and land strength

 

 

x

x

x
Low volume contact reduction grooves    

x

x

x
2nd ring land accumulator groove prevents ring flutter    

x

x

x
3rd ring land scraper relief    

x

x

x
Oil ring groove relief reservoir    

x

x

x
Inner and outer pin boss weight reduction radiusing    

x

x

x
Tighter control of crown thickness yields consistently lighter parts    

x

x

x
Dynamic skirt milling controls skirt thickness for consistently lighter parts  

 

x

x

x
Diamond-turned high strength skirts

x

x

x

x

x
High-strength piston pins

x

x

x

x

x
Extreme Duty XR wrist pins      

 

x
Horizontal Gas Ports enhance ring seal        

x
Forged and machined in the USA

x

x

x

x

x
Piston Specs

Engine Brand: Chevy

Engine Family: Chevy LS

Engine Size: 4.8 - 5.3 - LS1 - LS6 - Stroker

With/Without Rings: Without Rings

Cylinder Bore Size: 3.840 in , 97.459 mm

Ring Width: 1.5/1.5/3MM

Compression Height: 1.165"

Pin Diameter: 0.927"

Connecting Rod Length: 6.125"

Crankshaft Stroke: 3.900"

Piston Series: SX 4032 Alloy

Alloy: 4032 Alloy

Cylinder Head: LS1,LS2,LS3 and LS7

TDC Assembly Height: 9.240"

Piston Top Aprox. Comp. Ratio:

-22cc Dish Top LS1,LS2,LS3 and LS7
ChamberComp Ratio
648.9 to 1
668.74 to 1
728.28 to 1

Download Piston Instructions

Piston Comparison Chart
 
Features: Piston Series
 

E series

  SX series  1-FX series  2-FX series  3-FX series
Broached pin oiling slots

x

x

 

 

 
Drilled, forced wrist pin oiling

 

x

x

x

x
Forged drain-back windows

x

 

 

 

 
Drilled bottom ring land intersecting oil groove drain-backs

 

x

x

x

x
Slightly larger, deeper valve reliefs than OEM

x

 

 

 

 
CNC machined valve reliefs for moderate performance heads and cam combinations

 

x
Larger, deeper CNC valve reliefs for more aggressive cylinder head and cam combinations

 

 

x

x

x
Premium Aircraft spec. 4032 low expansion alloy

x

x

x

 

 
Premium Aircraft spec. 2618 alloy

 

 

 

x

x
Blower, Turbo, NOS ready

 

x

x

x

x
Brushed piston crown

 

 

x

x

x
Turned dishs

x

x

 

 

 
Max Quench milled dishs

 

 

x

x

x
Additional CNC milling for weight reduction in non-critical areas

 

 

x

x

x
Patented “X Groove” skirt for superior cylinder and ring life

 

 

x

x

x
Thinner/shallower Ring grooves for maximum ring seal and land strength

 

 

x

x

x
Low volume contact reduction grooves    

x

x

x
2nd ring land accumulator groove prevents ring flutter    

x

x

x
3rd ring land scraper relief    

x

x

x
Oil ring groove relief reservoir    

x

x

x
Inner and outer pin boss weight reduction radiusing    

x

x

x
Tighter control of crown thickness yields consistently lighter parts    

x

x

x
Dynamic skirt milling controls skirt thickness for consistently lighter parts  

 

x

x

x
Diamond-turned high strength skirts

x

x

x

x

x
High-strength piston pins

x

x

x

x

x
Extreme Duty XR wrist pins      

 

x
Horizontal Gas Ports enhance ring seal        

x
Forged and machined in the USA

x

x

x

x

x