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KB Hypereutectic Pistons · SKB385.060

Part #: SKB385.060
UPC: 800745072085

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Description: KB Hyper Single Piston - Ford 408W Rod 6.000 Step Dish +28cc 2V; 4.000+.060", Step Dish 28cc w/ 2V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios:10.1/55cc,9.7/60cc,9.3/64cc,8.9/69cc,Gram weight 573/145, INT-Valve Depth/DIA .285-2.120", EX-Relief Depth/Dia .273-1.880"

Description:

Description

KB Series Hypereutectic 390 Alloy with 16% Silicon is a High Performance Piston for Marine, Drag, Circle Track and Towng. Fully machined head and valve reliefs. Mini Grooves to reduce scuffing if overheated. Accumulator Grove aids with compression ring seal. Triple Spiral Lock Rings. Machined in Oil Returns. CNC machined pin bores produce straight and accurately sized bores. Diamond finished skirts.

Features & benefits

  • Bore: 4.000+.060"
  • Pin Size:0.9122/ Pin#0912X300K
  • Ring Set: 4000AD8 or 4000AM8
  • Stroke: 4.000
  • Comp HT: 1.490
  • O.E Deck HT: 9.500
  • Lock Ring:PRJ100-3
  • Step Dish 28cc w/ 2 Valve Reliefs
  • Centered Pin:Oil spacer ring included
  • Pre-71 blocks .020" shorter. Not enough stock to clean up
  • Made with Ford 351 block

Specifications

GTIN
00800745072085
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB385
Bore (in)
4
Bore (mm)
101.6
Compression Ratio
55-10.2, 60-9.7, 64-9.3, 69-8.9
Crown (cc)
+28cc
Crown Type
STEP DISH 2V
Eng. Disp Liters
6.7
Eng. Disp. In.
408
Engine Family
Ford SB V8 Windsor
Engine Manufacturer
Ford
Exhaust Valve Depth/diameter
.273/1.880
Intake Valve Depth/diameter
.285/2.120
Lock
PRJ100-3
Make For Engine Family
Ford
Oe Deck Height
9.5
Oversize
.060
Oversizes
STD .020 .030 .040 .060
Pin Configuration
Centered
Pin Diameter (in)
.927
Pin Diameter (mm)
23.5
Pin Number
0927x300K
Pin Type
Floating
Ring Pack
5/64, 5/64, 3/16
Rod (in)
6
Rod (mm)
152.4
Sold As
SINGLE
Stroke (in)
4
Stroke (mm)
101.6
Top Land
.275
Year Range
-

Fitment status

This product is universal and will fit your application.

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