C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

347
V-8
4.000"
3.400"
5.400"
.0015"
1.090"
.9272"
STEP HEAD
8.206"
/102g

KB366*
2-1/16
1-3/16

---

Head vol.-
Comp.ratio
55cc -10.0
60cc - 9.4
64cc - 9.0
69cc - 8.6

5.4"ROD
1)302 Stroker motor click here for details.
2)For oil ring installation tips click here.
3) This is the largest 302 block stroker that we make pistons for it is designed with pump gas in mind. But don't use a torque cam above 9.1 compression ratio. A new design valve relief encourages reattomization of wet flow don't remove the sharp corners of the valve relief near the intake valve.

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

347
V-8
4.000"
3.400"
5.400"
.0015"
1.090"
.927"
FLAT TOP
8.206"
415/102g

KB246
2-1/16
 1-3/16

---

Head vol.-
Comp.ratio
55cc -11.2
60cc - 10.5
64cc - 10.0
69cc - 9.5

5.4"ROD
1)302 Stroker motor click here for details.
2)For oil ring installation tips click here.

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

347
V-8
4.000"
3.400"
5.400"
.0035"
1.090"
.9272"
FLAT TOP
8.206"
/145g

KB709*
2-1/16
 1-3/16

---

Head vol.-
Comp.ratio
55cc -11.2
60cc - 10.5
64cc - 10.0
69cc - 9.5

5.4"ROD
1)302 Stroker motor click here for details.
2)HYPO 18 FORGING very much like KB246.
3)Race gas with most all popular heads light weight of engine makes it competitive in 350 class circle track.
4)Spacer ring supplied with pistons.

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

347
V-8
4.000"
3.400"
5.400"
.0015"
1.090"
.927"
FLAT TOP
8.206"
421/102g

KB349*
2-1/16
1-3/16

---

Head vol.-
Comp.ratio
55cc -12.2
60cc - 11.4
64cc - 10.8
69cc - 10.3

5.4"ROD
1)302 Stroker motor click here for details.
2)For oil ring installation tips click here.
3)Probably the hottest 347 gas package no valve reliefs needed or provided because the Ford N head advanced design doesn't need reliefs. Short of a Bush Grand National cylinder head the N head is probably the strongest small block Ford head period.

NEW ITEM. CHECK AVAILABILITY.

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

347
V-8
4.000"
3.400"
5.400"
.0015"
1.090"
.927"
DOME
8.206"
/102g

KB367*
2-1/16
1-3/16

---

Head vol.-
Comp.ratio
55cc -14.5
60cc - 13.3
64cc - 12.5
69cc - 11.6

5.4"ROD
1)302 Stroker motor click here for details.
2)For oil ring installation tips click here.
3)Lightweight hollow dome.
4)RACE GAS AND ALCOHOL ONLY.

NEW ITEM. CHECK AVAILABILITY.

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

347
V-8
4.000"
3.400"
5.400"
.0015"
1.090"
.927"
DOME
8.206"
468/102g

KB332*
2-1/16
1-3/16

---

Head vol.-
Comp.ratio
55cc -15.8
60cc - 14.4
64cc - 13.5
69cc - 12.5

5.4"ROD
1)302 Stroker motor click here for details.
2)For oil ring installation tips click here.
3)ALCOHOL ONLY.
4)Now the hottest alcohol 347. 15.5cc of solid dome can be removed all or part.

NEW ITEM. CHECK AVAILABILITY.

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

351C
V-8
4.000"
3.500"
5.778"
.0015"
1.670"
.9122"
13cc D-cup
9.206"
597/143g

KB148
2-5/64
1-3/16

---

Head vol.-
Comp.ratio
62cc -9.8
66cc - 9.4
76cc - 8.5

5.778"ROD
1)Designated as O.E. replacement for engines manufactured in years 70-74.

2)* All other years.

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

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

351C
V-8
4.000"
3.500"
5.778"
.0015"
1.670"
.9122"
FLAT TOP
9.206"
582/143g

KB108
2-1/16
1-3/16

KB177
2-5/64
1-3/16

---

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

5.778"ROD
1)Designated as O.E. replacement for high output engines manufactured in year 1972.

2)* All other years.

3)Not recommended for street use because of high compression and today's low octane fuel.

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

C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT.PISTON/PIN

351C
V-8
4.000"
3.500"
5.778"
.0015"
1.670"
.9122"
.100 Pop-up
9.206"
600/143g

KB149
2-1/16
1-3/16

---

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

5.778"ROD
1).100 solid dome.

2)Designated as O.E. replacement Boss engines manufactured in 1972.

3)* All other years.

4)Not recommended for street use because of high compression and today's low octane fuel.

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

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"
22cc D-cup
9.500"
620/143g

KB181
2-5/64
1-3/16

---

Head vol.-
Comp.ratio
55cc -9.6
60cc - 9.1
64cc - 8.7
69cc - 8.4

5.956"ROD
1)Designated as O.E. replacement for engines manufactured in years 69-76.

2)* All other years.

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

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"
STEP HEAD
9.500"
/143g

KB379*
2-5/64
 1-3/16

---

Head vol.-
Comp.ratio
55cc -10.3
60cc - 9.8
64cc - 9.4
68cc - 9.0

5.956"ROD
1)Designed for Sportsman N head with 10 degree valve angle. Step piston head for fast burn and use with pump gas. Excellent for 9:1 racing rules - Ford racing block suggested for high RPM and power levels.

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