FORD


SPECIFICATIONS

 PART NO.
RING PACK		 NOTES: HEAD PHOTO/EFFECTIVE HEAD VOL.
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
372W
V-8
4.000"
3.640"
6.200"
.0015"
1.440"
.9272"
FLAT TOP
9.480"
485/145g
 
KB254*
2-5/64
1-3/16

Head vol.-
Comp.ratio
58cc -11.4
60cc - 11.2
64cc - 10.6
68cc - 10.1
6.2"ROD

1)351W Stroker motor click here for details.





SIZES Std.,.020,.030,.040,.060

+6.5cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
372W
V-8
4.000"
3.640"
6.200"
.0015"
1.440"
.9272"
.150 Pop-up
9.480"
505/145g
 
KB255*
2-1/16
1-3/16

Head vol.-
Comp.ratio
58cc -12.6
60cc - 12.3
64cc - 11.7
68cc - 11.1
6.2"ROD

1)Dome height .150".

2)351W Stroker motor click here for details.



SIZES Std.,.020,.030,.040,.060
Check piston dome-to-cylinder head clearance.

-1cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
372W/C
V-8
4.000"
3.640"
6.200"
.0015"
1.440"
.9272"
FLAT TOP
9.480"
500/145g
 
KB285
2-1/16
1-3/16

Head vol.-
Comp.ratio
62cc -11.5
66cc - 11.1
76cc - 9.8
6.2"ROD

1)351W Stroker motor click here for details.

2)Use with Cleveland cylinder head.

SIZES Std.,.020,.030,.040,.060

+2cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
372W/C
V-8
4.000"
3.640"
6.200"
.0015"
1.440"
.9272"
.100 Pop-up
9.480"
541/145g
 
KB286
2-1/16
 1-3/16

Head vol.-
Comp.ratio
62cc -13.2
66cc - 12.5
76cc - 10.9
6.2"ROD

1).100 solid dome.

2)351W Stroker motor click here for details.

3)Use with Cleveland cylinder head.

SIZES Std.,.020,.030,.040,.060
Check piston dome-to-cylinder head clearance.

-8cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
383W
V-8
4.000"
3.750"
6.200"
.0015"
1.405"
.9272"
21cc D-Cup
9.500"
482/145g
 
KB321*
2-5/64
1-3/16

Head vol.-
Comp.ratio
55cc -10.3
60cc - 9.8
64cc - 9.4
69cc - 9.0
6.2"ROD

1)351W Stroker motor click here for details.

NEW ITEM. AVAILABLE NOW.

SIZES Std.,.020,.030,.040,.060


+21cc

PICTURE NOT AVAILABLE
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
383W
V-8
4.000"
3.750"
6.200"
.0015"
1.405"
.9272"
FLAT TOP
9.500"
502/145g
 
KB322*
2-5/64
1-3/16


Head vol.-
Comp.ratio
55cc -12.2
60cc - 11.5
64cc - 11.1
69cc - 10.3
6.2"ROD

1)351W Stroker motor click here for details.

NEW ITEM. AVAILABLE NOW.

SIZES Std.,.020,.030,.040,.060


+6.5cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
390
V-8
4.050"
3.780"
6.490"
.0015"
1.780"
.9752"
Step Head
10.170"
530/143g
 
KB150*
1-5/64
1-3/32
1-3/16

Head vol.-
Comp.ratio
60cc - 10.2
68cc - 9.4
73cc - 9.0
88cc - 8.0
6.490"ROD

1)Can be used in 360 truck motors '68-76.
2)390 FE engine is not popular as a race engine but this piston helps make it respectable in a light car or restoration.

NEW ITEM. CHECK AVAILABILITY.

SIZES Std.,.020,.030,.040,.060


+20cc

PICTURE NOT AVAILABLE AT THIS TIME.
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
393
V-8
4.000"
3.850"
5.956"
.0015"
1.608"
.9122"
22cc DISH
9.500"
/143g
KB364*
2-5/64
 1-3/16

Head vol.-
Comp.ratio
55cc - 10.4
60cc - 9.9
64cc - 9.5
69cc - 9.1
5.956"ROD

1)351 stoker motor.
2)Aftermarket "Skat" 3.85" stroke 71 or later Windsor block with stock or stock length connecting rod.
3) Smaller heads require premium or race gas depending on cam (long duration cam reduces compression pressure and octane requirements).

NEW ITEM. CHECK AVAILABILITY.

SIZES Std.,.020,.030,.040,.060


+22cc

PICTURE NOT AVAILABLE AT THIS TIME.
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
408W
V-8
4.000"
4.000"
6.000"
.0015"
1.490"
.9272"
Dish
9.500"
 
KB385*
2-1/16
 1-3/16
Head vol.-
Comp.ratio
55cc - 10.2
60cc - 9.7
64cc - 9.3
69cc - 9.0
6.0"ROD

1)351W Stroker motor click here for details.

NEW ITEM. AVAILABLE NOW.

SIZES Std.,.020,.030,.040,.060


+28cc

PICTURE NOT AVAILABLE
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
408W
V-8
4.000"
4.000"
6.200"
.0015"
1.280"
.9272"
27.5cc D-Cup
9.500"
467/145g
KB319*
2-1/16
 1-3/16

Head vol.-
Comp.ratio
55cc - 10.2
60cc - 9.7
64cc - 9.4
69cc - 9.0
6.2"ROD

1)351W Stroker motor click here for details.

NEW ITEM. AVAILABLE NOW.

SIZES Std.,.020,.030,.040,.060


+27.5cc

PICTURE NOT AVAILABLE
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
408W
V-8
4.000"
4.000"
6.200"
.0015"
1.280"
.9272"
FLAT TOP
9.500"
455/102g
 
KB320*2-1/16
 1-3/16


Head vol.-
Comp.ratio
55cc -13.1
60cc - 12.2
64cc - 11.6
69cc - 11.1
6.2"ROD

1)351W Stroker motor click here for details.
2)For oil ring installation tips click here.

NEW ITEM. AVAILABLE NOW.

SIZES Std.,.020,.030,.040,.060


+6.5cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
416W
V-8
4.000"
4.075"
6.123"
.0015"
1.310"
.9272"
30cc D-cup
9.480"
490/145g
KB189*
2-5/64
1-3/16

Head vol.-
Comp.ratio
55cc -10.1
60cc - 9.6
64cc - 9.3
68cc - 9.1
6.123"ROD

1)351W Stroker motor click here for details.

2)Check rod balance pad-to-piston clearance, underside of piston cup.
3)For oil ring installation tips click here.

SIZES Std.,.020,.030,.040,.060

+30cc

Part numbers with an asterisk * are not legal for sale or use on pollution controlled motor vehicles.

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