My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

JE Pistons 170762 Forged Dome Piston Set Bore Alloy - 4.145 2618 8-Cylinder

(1970-1980 Chevrolet 400 Small Block)

Part of: JE Pistons Forged Dome Piston Set Bore

Other options in this family: JE Pistons 353906 JE Pistons 186235 JE Pistons 359152 JE Pistons 361278 JE Pistons 258239

Manufacturer

Picture for manufacturer JE Pistons

Part Number

170762
5 reviews
Sale Price

$1,154.99

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The JE Pistons 170762 is a precision-engineered forged piston set designed for high-performance Brodix -12 series cylinder heads. Manufactured from 2618 aluminum alloy for superior strength and heat resistance, this 8-piston set features a 15-degree dome design, 4.145-inch bore diameter, 1.100-inch compression distance, and 0.927-inch pin diameter.

Key Features:

  • Application-specific forgings ensure optimized, uniform crown thickness for consistent compression and durability
  • Contact reduction groove minimizes frictional drag for increased horsepower and efficiency
  • Accumulator groove provides enhanced top ring stability and superior sealing
  • CNC-machined side relief with lower support band delivers additional skirt strength and stability
  • Precision-honed pin bores with double pressure-fed pin oilers for improved lubrication
  • Includes oil rail support and wire locks for complete installation

With over 60 years of racing heritage, JE Pistons sets the industry standard for forged racing pistons. Each set is precision-matched to ensure balanced performance across all cylinders. Recommended ring set: J10008-4145-5 (sold separately).

Products specifications

Fits

1970-1980 Chevrolet 400 Small Block

Block Height

9

Bore

4.145

CID

410

Comp Height

1.095

Comp Ratio @ 58CC

15.4:1

Comp Ratio @ 64cc

14.5:1

Comp Ratio @ 76CC

13.7:1

Dome Volume

+2

Gram Weight

466

Oversize

0.015

Rod

6

Stroke

3.795

Ringset Included

No

Piston Volume

2.6

Bore Diameter

4.145

Top Compression Ring Thickness

0.064

Engine

SMALL BLOCK CHEVROLET

Add-On

927-2750-15-51S

Cylinder Head

BRODIX -12 15 DEG

Make

Chevrolet

Second Compression Ring Thickness

0.064

Piston Pin Length

2.750

Forging Type

Round

Add-On

927-042-CS

Piston Pin Material

5115

Piston Avg Wt

470

Piston Material

2618

Category Hierarchy

Pistons>Piston Kits

Add-On

J10008-4145-5

Piston Head Type

Dome

Piston Pin Wall Thickness

0.150

Industry

Automotive

Oil Ring Thickness

0.218

Piston Pin Outside Diameter

0.927

Product Market

Domestic

Out of Stock Message

Call for Availability

Compression Height

1.100

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Wrist Pin Outer Diameter

0.927

Piston Quantity

8

great product at a great price

Good fitment info and easy to follow menus.

This is the first time I ordered from Autoplicity. Very good experience overall. The prices are the best I can find anywhere online. It was shipped very quickly, and I received my item just in time before my trip. Thanks!

Very poor info on shipping. Order was sent in 2 separate shipments, but tracking notice indicated everything was sent in one shipment. When I received 1/2 of my order I called & was put on hold for over 20 minutes. The world's WORST music on hold.... Good prices though.

it's a great company had the lowest price anywhere that i could find even online. great customer service that will even help you track your order all the way to your house. thanks autoplicity for helping me out and for being there with the lowest price when i needed you.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy