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
351W
V-8
4.000"
3.500"
5.956"
.0015"
1.774"
.9122"
FLAT TOP
9.500"
615/143g
 
KB124*
2-1/16

1-3/16

KB151*
2-5/64

1-3/16
Head vol.-
Comp.ratio
55cc -11.5
60cc - 10.8
64cc - 10.3
69cc - 9.7
5.956"ROD

1)Pre-'71 blocks have a .020" shorter deck height and do not provide adequate stock for squaring or cleaning up the block. KB pistons used in these blocks will be above deck.

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
351W
V-8
4.000"
3.500"
5.956"
.0040"
1.774"
.9122"
FLAT TOP
9.500"
/143g
KB710*
2-5/64

1-3/16


Head vol.-
Comp.ratio
55cc -11.5
60cc - 10.8
64cc - 10.3
69cc - 9.7
5.956"ROD

1)HYPO 18 FORGING. Pump gas marginal with 69cc cylinder heads, race gas for most smaller heads.

2)Pre-'71 blocks have a .020" shorter deck height and do not provide adequate stock for squaring or cleaning up the block. KB pistons used in these blocks will be above deck.

NEW ITEM. CHECK AVAILABILITY.

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


+6.5cc
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
351W
V-8
4.000"
3.500"
5.956"
.0015"
1.774"
.9122"
.150 Pop-up
9.500"
635/143g
 
KB136*
2-1/16

1-3/16


Head vol.-
Comp.ratio
55cc -12.7
60cc - 11.9
64cc - 11.3
69cc - 10.6
5.956"ROD

1).150 solid dome.

2)Pre-'71 blocks have a .020" shorter deck height and do not provide adequate stock for squaring or cleaning up the block. KB pistons used in these blocks will be above deck.

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
351W
V-8
4.000"
3.500"
6.580"
.0015"
1.130"
.9272"
FLAT TOP
9.480"
437/145g
KB276*
2-1/16

1-3/16


Head vol.-
Comp.ratio
55cc -11.5
60cc - 10.8
64cc - 10.3
69cc - 9.7
6.580"ROD

1)Uses Ford 400 connecting rod, 6.580" in length. Pre-'71 blocks have a .020" shorter deck height and do not prvide adequate stock for squaring or cleaning up the block. KB pistons used in these blocks will be above deck. Rod must be bushed to .927" pin size. Large end of rod must be narrowed to fit rod journal of crankshaft.
2)For oil ring installation tips click here.

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
351W
V-8
4.000"
3.500"
5.956"
.0015"
1.774"
.9122"
FLAT TOP
9.500"
629/143g
KB313*
2-5/64

1-3/16


Head vol.-
Comp.ratio
61cc -11.1
5.956"ROD

1)Designed for Trick Flow heads, including the R heads.

NEW ITEM. AVAILABLE NOW.

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

+4cc
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
351W
V-8
4.000"
3.500"
5.956"
.0015"
1.774"
.9122"
POP UP
9.500"
646/143g
KB314*
2-5/64

1-3/16


Head vol.-
Comp.ratio
61cc -12.4
5.956"ROD

1)Designed for Trick Flow heads, including the R heads.
2)Solid dome. Can be milled to reduce compression ratio.

NEW ITEM. AVAILABLE NOW.

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

-5cc

Check piston dome-to-cylinder head clearance
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
351W
V-8
4.000"
3.500"
5.956"
.0015"
1.774"
.9122"
FLAT TOP
9.500"
565/143g
KB315*
2-5/64

1-3/16


Head vol.-
Comp.ratio
64cc -11.1
5.956"ROD

1)Designed for SVO Sportsman N-head. 10 degree valve angle.
NEW ITEM. AVAILABLE NOW.

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

0cc


C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN
351W
V-8
4.000"
3.500"
6.580"
.0015"
1.160"
.9272"
FLAT TOP
9.500"
447/145g
KB333*
2-1/16

1-3/16


Head vol.-
Comp.ratio
55cc -11.5
60cc - 10.8
64cc - 10.3
69cc - 9.7
6.580"ROD

1)Uses Ford 400 connecting rod, 6.580" in length.
2)Long rod 351 use Ford 400 rod bushed to .927" pin with the big end narrowed to fit 351 crank journal.
3)Pre-'71 blocks have a .020" shorter deck height and do not provide adequate stock for squaring or cleaning up the block. KB pistons used in these blocks will be above deck.
4)For oil ring installation tips click here.
NEW ITEM. CHECK AVAILABILITY.

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

+6.5cc


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
351W/C
V-8
4.000"
3.500"
5.956"
.0015"
1.774"
.9122"
FLAT TOP
9.500"
641/143g
KB110
2-1/16

1-3/16


Head vol.-
Comp.ratio
62cc -11.1
66cc - 10.6
76cc - 9.5

5.956"ROD

1)Windsor block using Cleveland head.

2)Pre-'71 blocks have a .020" shorter deck height and do not provide adequate stock for squaring or cleaning up the block. KB pistons used in these blocks will be above deck.

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
351W/C
V-8
4.000"
3.500"
5.956"
.0015"
1.774"
.9122"
.100 Pop-up
9.500"
657/143g
KB117*
2-1/16

1-3/16


Head vol.-
Comp.ratio
62cc -12.7
66cc - 12.1
76cc - 10.6

5.956"ROD

1).100 solid dome.

2)Windsor block using Cleveland head.

3)Pre-'71 blocks have a .020" shorter deck height and do not provide adequate stock for squaring or cleaning up the block. KB pistons used in these blocks will be above deck.

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

-8cc

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


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