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JE Pistons / SRP · 300247

Part #: 300247
UPC: 193564040152

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Description: Piston Set, 2618, Flat Top, 4.030 Bore, 1.125 CD, 0.927 Pin, Set of 8.; 4.030 in. Bore, 1.125 CD, Flat Top, -1.8 cc, 8 Cyl. Piston Kit

Description:

Description

Accumulator Groove, Combo 2, Contact Reduction, Double Pin Oilers, Pin Fit, and Lateral Gas Ports. JE Auto Pistons are engineered, forged and machined 100% in the USA

Features & benefits

  • Forged in the USA using 2618 aluminum, yielding high tensile strength needed for high-demand performance applications
  • Pin Fit: The pin bore is precision honed to attain an exact pin clearance. Clearances typically range from .0003 to .0010 between the wrist pin and pin bore.
  • Lateral Gas Ports: This process mills slots into the top of the top ring groove and provides a pathway for combustion pressure to get behind the top ring. Resulting in increased ring seal and is most common in circle track applications.
  • Designed specifically for Chevrolet Small Block 23 Degree Engines. To provide optimized performance durability
  • Proprietary Forged Side Relief (FSR) forging design minimizes friction and power loss with reduced skirt width and saves additional weight with a shorter wrist pin
  • Includes high-quality wrist pins, and locks
  • Made 100% in the USA
  • Accumulator Groove: A specialty groove between the top and second ring provides added volume for blow-by gases. This helps reduce pressure between the rings, improving top ring seal and minimizing ring flutter at high cylinder pressures.
  • Contact Reduction: Reduce the amount of contact area against the cylinder wall when the piston "Rocks over". Contact reduction also serves to disrupt the flame travel into the crevice area causing a reduction in detonation.
  • Double Pin Oilers: Deliver twice the amount of oil to the wrist pin as compared to the standard single pin oiler.

Information

These pistons utilize our dedicated Forged Side Relief (FSR) forging that was specifically designed to increase strength.

Specifications

GTIN
00193564040152
Weight
12.1 lb
Height
6 in
Length
26 in
Width
12 in
EO
Offroad
Life cycle
Available to Order
Warehouse brand code
JEP
AAIA brand code
BHXG

Attributes

2nd Groove Width
0.04400
3D Undercrown Milling
No
Accumulator Groove
Yes
Add-On
J71408-4030-5
Anodize Top Ring Groove
No
Bore Diameter
4.030
Bore Diameter - Web
4.030 IN
California Proposition 65
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Category Hierarchy
Auto>JE Pistons>Piston Kits>Domestic
Combo 2
Yes
Compression Height
1.125
Compression Ratio
0.42222222222222
Connecting Rod Length
6.125 IN
Contact Reduction
Yes
Cylinder Head
STD CHEVROLET 23 DEG
DVGP
No
Double Pin Oilers
Yes
EBAY Category ID
33623
EN Plating
No
Econo Undercrown Milling
No
Engine
Small Block
Engine - Web
Small Block
Engine Detail
23 Degree
Engine Displacement
400 Small Block
Engine Family
Small Block
Engine Stroke
3.500
Engine Type
ICE
Exhaust Angle
23
Exhaust Depth
S
Exhaust Diameter
1.750
Forging Type
FSR
Gas Distribution
No
Industry
Automotive
Intake Angle
23
Intake Depth
.190
Intake Diameter
2.170
Lateral Gas Ports
Yes
Make
Chevrolet
Make - Web
Chevrolet
Mill Undercrown
No
Oil Groove Width
0.11900
Oil Ring Thickness
0.119
Out of Stock Message
Please Allow Approximately 3 Weeks or Less for Shipping
Pin Fit
Yes
Piston Average Weight
323
Piston Avg Wt
323
Piston Head Type
Flat
Piston Material
2618
Piston Pin Length
2.350
Piston Pin Material
5115
Piston Pin Outside Diameter
0.927
Piston Pin Wall Thickness
0.150
Piston Quantity
8
Piston Qunatity
8
Piston Series
JE Pistons
Piston To Wall Clearance
-0.004999
Piston Volume
-1.80
Product Market
Domestic
Product Type
Engine Piston Kit
Ring Set Included
No
Ringset Included
No
Second Compression Ring Thickness
0.0440
Skirt Coat
No
Smooth Crown Finish
No
Stroke
3.500
Thermal Crown
No
Title
JE Pistons - Chevrolet, Small Block, 4.030 in. Bore, Piston Kit
Title - Web
JE Pistons 23? FSR Superfly Gas Ported Chevrolet Small Block Piston Kit
Top Compression Ring Thickness
0.0435
Top Groove Width
0.04350
Tuff Skirt
No
Ultra Dome
No
Ultra Groove
No
Ultra Groove Plus Gas Port
No
Vertical Gas Ports
No
Wrist Pin Length
2.350
Wrist Pin Material
5115 Low Carbon Steel, Case Hardened
Wrist Pin Outer Diameter
0.927
Wrist Pin Wall Thickness
0.150

Fitment status

This product is universal and will fit your application.

Application summary

Chevrolet Small Block 350