CHEVY

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
305
V-8
3.736"
3.480"
5.700"
.0015"
1.561"
.9272"
FLAT TOP
9.025"
470/145g
KB143
2-5/64 
1-3/16

Head vol.-
Comp. ratio
55cc -10.4
58cc - 10.0
64cc - 9.3
76cc - 8.2
5.7"ROD

1)Designated as O.E. replacement for engines manufactured in years 82-86.

2)* All other years.



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

+5cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT. PISTON/PIN
305
V-8
3.736"
3.480"
5.700"
.0015"
1.561"
.9272"
FLAT TOP
9.025"
488/145g
KB226*
2-5/64 
1-3/16

Head vol.-
Comp. ratio
55cc -
58cc -
64cc -
76cc -
5.7"ROD

1)No valve reliefs.

2)Customer must machine valve clearance. Best to use carbide cutter.

3) This piston is offered to allow experimental work on race engines ONLY.

NEW ITEM. AVAILABLE NOW.

SIZES .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
305
V-8
3.736"
3.480"
5.700"
.0015"
1.561"
.9272"
.100 Pop-up
9.025"
485/145g
KB144*
2-5/64 
1-3/16

Head vol.-
Comp. ratio
55cc -11.3
58cc - 10.8
64cc - 9.9
76cc - 8.6
5.7"ROD

1).100 solid dome.





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

-.5cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT. PISTON/PIN
305
V-8
3.736"
3.480"
6.000"
.0015"
1.261"
.9272"
FLAT TOP
9.025"
420/145g
KB153*
2-1/16 
1-3/16

Head vol.-
Comp. ratio
55cc -10.4
58cc - 10.0
64cc - 9.3
76cc - 8.2
6.0"ROD

1)Discontinued upon depletion of stock.

2)For oil ring installation tips click here.



SIZES Std.,.020,.030

+5cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT. PISTON/PIN
305
V-8
3.736"
3.480"
6.000"
.0015"
1.261"
.9272"
.150 Pop-up
9.025"
437/145g
KB179*
2-1/16 
1-3/16

Head vol.-
Comp. ratio
55cc -11.7
58cc - 11.2
64cc - 10.3
76cc - 8.9
6.0"ROD

1).150 solid dome.

2)For oil ring installation tips click here.



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

-2.8cc
C.I.D.
CYLINDER
BORE
STROKE
ROD LENGTH
MIN. CLEARANCE
COMP. HT.
PIN DIAMETER
HEAD TYPE
CRANK CL TO DECK
WT. PISTON/PIN
327
V-8
4.000"
3.250"
5.700"
.0015"
1.678"
.9272"
13cc D-cup
9.025"
586/145g
KB158
2-5/64 
1-3/16

Head vol.-
Comp. ratio
58cc -9.6
62cc - 9.2
64cc - 9.0
76cc - 8.0
5.7"ROD

1)Designated as O.E. replacement for Truck engines mfgd. in years 62-68.

2)* All other years.

3)Check rod balance pad-to-piston clearance, underside of piston cup.
SIZES Std.,.020,.030,.040,.060

+13cc
Part numbers with an asterisk * are not legal for sale or use on pollution controlled motor vehicles.


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