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KB Hypereutectic Pistons · SKB378.040

Part #: SKB378.040
UPC: 800745079282

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Description: KB Hyper Single Piston - Ford 428FE Rod 6.490 Step Dish +28cc 2V; 4.130+.040", Step Dish 28cc w/2 V,Top Ring:5/64", 2nd Ring: 5/64", Oil Ring: 3/16", Comp Ratios:10.1/60cc,9.3/68cc,9.1/73cc,8.1/88cc,Gram weight 560/143, INT-Valve Depth/DIA .186-2.150", EX-Relief Depth/Dia .186-2.150"

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: 4.130+.040"
  • Stroke: 3.980
  • Comp HT: 1.673
  • O.E Deck HT: 10.170
  • Lock Ring:PRH107-3
  • Step Dish 28cc w/2 Valve Reliefs
  • Centered Pin
  • Pin Size:0.9752/ Pin#0975X300K
  • Ring Set: 4130AM8

Application summary

Year Make / model
1968 Ford Country Sedan
1968 Ford Country Squire
1968 Ford Custom
1968 Ford Custom 500
1968-1969 Ford Fairlane
1968 Ford Galaxie 500
1968-1969 Ford GT40
1968 Ford LTD
1968 Ford Mustang
1968 Ford Ranch Wagon
1968 Ford Torino
1968-1969 Mercury Comet
1968 Mercury Cougar
1968-1969 Mercury Cyclone
1968-1969 Mercury Montego

Specifications

GTIN
00800745079282
Life cycle
Available to Order
AAM brand code
KBP
Warehouse brand code
BJDT
AAIA brand code
BJDT

Attributes

Alloy
390
Base Number
KB378
Bore (in)
4.13
Bore (mm)
104.9
Compression Ratio
60-10.1, 68-9.3, 73-9.1, 88-8.1
Crown (cc)
+28cc
Crown Type
STEP DISH 2V
Eng. Disp Liters
7.0
Eng. Disp. In.
428FE
Engine Family
Ford BB V8 FE
Engine Manufacturer
Ford
Exhaust Valve Depth/diameter
.186/2.150
Intake Valve Depth/diameter
.186/2.150
Lock
PRH107-3
Make For Engine Family
Ford
Oe Deck Height
10.17
Oversize
.040
Oversizes
.020 .040
Pin Configuration
Centered
Pin Diameter (in)
.975
Pin Diameter (mm)
24.8
Pin Number
0975x300K
Pin Type
Floating
Ring Pack
5/64, 5/64, 3/16
Rod (in)
6.49
Rod (mm)
164.846
Sold As
SINGLE
Stroke (in)
3.98
Stroke (mm)
101.1
Top Land
.308
Year Range
-

Fitment status

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Application summary

1968 Ford Country Sedan; 1968 Ford Country Squire; 1968 Ford Custom; 1968 Ford Custom 500; 1968-1969 Ford Fairlane; 1968 Ford Galaxie 500; 1968-1969 Ford GT40; 1968 Ford LTD; 1968 Ford Mustang; 1968 Ford Ranch Wagon; 1968 Ford Torino; 1968-1969 Mercury Comet; 1968 Mercury Cougar; 1968-1969 Mercury Cyclone; 1968-1969 Mercury Montego