1001867 Racetec Forged Dish Piston Set for GM Gen IV LS7 Engines [4.125 in. Bore]

Name: 1001867 Racetec Forged Dish Piston Set for GM Gen IV LS7 Engines [4.125 in. Bore]
Brand: RACETEC PISTONS
SKU: 613-1001867
Price: 987.30 USD
Availability: InStock

^$987³⁰$1097.00You Save$109.70

Ships on 10/12/2026

Lowest Price Guarantee

Racetec Forged Piston Set

GM Gen IV LS7

4.125 in. Bore

Forged 2618 Aluminum

4 in. Stroke

6.125 in. Rod Length

1.115 in. Compression Height

-23.5 cc Crown Volume

1.5 x 1.5 x 3.0 mm Ring Grooves

Set of 8

RaceTec 1001867 RaceTec Dish Piston Set Features:

Manufactured on 2618 material (FSR box style forgings, where noted) that will accept most extreme racing applications
CNC Precision used in every manufacturing operation
Valve pockets machined for oversized valves and high lift cams
Critically machined ring grooves for 1.5mm, 1.5mm, 3.0mm rings
927-2250-51-15C wrist pins, pin fit, wire locks, broached double pin oilers, and accumulator groove are included at no extra charge
Diamond tooling used throughout production including ring grooves and skirts
Top ring land gas distribution grooves to enhance performance and improve ring seal
Dyno tested and race track proven designs

RaceTec 1001867 RaceTec Dish Piston Set Specs:

Engine Family: GM Gen IV LS7
Bore: 4.125 in.
Stroke: 4 in.
Rod Length: 6.125 in.
Compression Height: 1.115 in.
Crown Volume: -23.5 cc
Piston Style: Dish
Alloy: 2618
Wrist Pin Diameter: 0.927 in.
Ring Grooves: 1.5 mm Top, 1.5 mm Second, 3.0 mm Oil

RaceTec 1001867 RaceTec Dish Piston Set Notes:

Requires RaceTec AT 4130 Ring Set or Equivalent (Sold Separately)
Check rod small end dimensions before ordering

RaceTec Series Pistons For Chevy Applications: Ultimate 2618 Alloy Strength For High-Horsepower Builds

RaceTec Series Pistons represent the highest level of precision-engineered performance, manufactured from forged or billet 2618 aluminum alloy for extreme durability and strength. Designed using advanced CAD technology and modern CNC machining, these pistons feature diamond-turned ring grooves and skirts for superior sealing, reduced friction, and consistent performance under high horsepower demands. The RaceTec Series provides proven reliability for everything from shelf applications with mild nitrous or boost to fully custom Top Fuel, vintage racing, and extreme power builds.

Part TypePiston

Product LineRaceTec Series Pistons for Chevy

BrandRACETEC PISTONS

Package Height6.0

Package Width12.0

Package Length12.0

Weight14.0 PG

Part CategoryPerformance Parts

Pin Lock Rings IncludedYes

Compression Height (In)1.115

Bore (In)4.125

Wrist Pin StylePress or Full Floating