DSS 389 Piston Set 2-6133-4092, 1.285 CH 4.250 stroke, -18cc Dish Top

Series: FX-Series
Make: Pontiac
Engine: 389 V8
Bore: 4.092" Bore
Stroke: 4.25" Stroke
Rod Length: 6.800" Rod
Compression Height: 1.285"
Crown Volume: -18cc Dish Top
Pin Diameter: .990" Pin included
Piston Material: Forged 2618 Alloy
Ring Lands: 1/16, 1/16, 3/16"
Gas Porting: None
Wrist Pin Fitment: Pressed or Floating
Notes: Late Flat Top
Quantity: Sold As Set (8/pkg)



Strong, Heat Resistant 2618 Alloy
Proprietary "DMAX" Multi Stage Forging Process, Produces' a Superior Forging
Patented "X Groove" Skirt for Superior Cylinder & Ring Performance & Durability
Advanced Ring Lands Featuring a Combination of Accumulators and Drilling Ops.
6 additional areas of CNC milling for weight reduction in non critical areas.
Thinner Ring Grooves Maximize Critical Ring Land Strength
Larger CNC Machined Valve Reliefs for More Aggressive Head & Cam Combinations
DSS Heavy Duty 8720 Bearing Steel Piston Pins
Precision Diamond-Turned Skirts
Double True Arc Pin Locks, Provide Redundancy
Drilled Forced Wrist Pin Oiling
Drilled Bottom Ring Land Intersecting Oil Drain Backs
Advanced Profile Precision Diamond-Turned Skirts
Forged and Machined in Saint Charles Illinois USA!
Boost and NOS Ready! (Moderate to High Levels)


*STOCK CAST RODS MAY NEED TO BE NARROWED AND BALANCE PAD REMOVED TO CLEAR INSIDE PISTONS