Product images and videos are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Engines and Components› Pistons and Piston Rings
RACE TEC PISTONS
GM LS Dished Piston Set 4.010 Bore -20cc
SKU: R0AE 1000615
Advanced — 4+ hours
Overview
Constructed from durable 4032 high-silicone aluminum alloy, these pistons offer wear resistance, a low expansion rate, and reduced friction. They are suitable for muscle car restorations, performance street rods, and spec racing classes, and can handle mild nitrous, turbo, or supercharger applications. The set includes wrist pins and retainers, with CNC-machined ring grooves and diamond-turned skirts for enhanced performance and sealing.
Show original supplier description
Part #: 1000615
Piston - AutoTec - Forged - Dished - 4.010 in Bore - 1.5 x 1.5 x 3.0 mm Ring Grooves - Minus 20.00 cc - GM LS-Series - Set of 8
Vehicle Symptoms
- Low compression in multiple cylinders
- Excessive oil consumption with blue smoke
- Engine knocking or detonation under load
- Loss of power and rough idle
- Failed leakdown test revealing ring seal issues
Relevant Conversations
- LS forged piston set 4.010 bore
- best pistons for LS3 6.0L build
- RaceTec AutoTec piston review
- difference between 4032 and 2618 alloy pistons
- low compression after cylinder head swap
- engine knock on boosted LS engine
- 4.010 bore piston for stock stroke LS
- forged pistons for 600hp street build
- piston ring gap for 6.0L forced induction
- replacing pistons after detonation damage
Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.
Fitment
Fitment Guaranteed
Don’t gamble
on fit.
Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.
Available on iOS & Android
Specifications
| Brand | RACE TEC PISTONS |
| Part Number | R0AE 1000615 |
About MOTORMIA
Buy with Confidence
Returns & Fitment
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
View Full Return PolicyShipping
Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.
Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.
View Full Shipping Policy