Somewhere on the web there is a list of all the best possible combinations for blocks, heads, pistons etc from different years of Zs. I know I've seen it and I thought I bookmarked it but now I can't find it.

Anyone know of the chart I'm talking about?

Thanks,

Chris

What do you mean by best? You're looking for a web page where somebody has ventured their opinion on "the best" combinations? There are a few out there, do you remember any details? There are a few pages that I know of listing the specs. of the different heads and blocks but no opinions on good or bad.

http://datsunzgarage.com/

Does this look familiar? Guy

I think this is what I was talking about,

L28 Bore & Stroke Combinations

presented by Jim Wolf at a Z Club of San Diego Meeting.

Thanks to Donn Vickery for making this information available

(Provided by Jim Wolf Technology, Inc.)

BORE AND STROKE COMBINATIONS FOR L28 ENGINES HEAD # VOL. C.C. INT VALV. EX VALV. EXH. PORT PROD. DATE

E31 42.4 42 33 square ex 10/69-7/71

E88 44.7 42 33 square ex 9/71-7/72

N33 47.8 42 33 square ex 8/72-7/73

N33/P50 47.8 42 35 square ex 8/73-8/74

N42 44.6 44 35 square ex 9/74-7/77

N47 44.6 44 35 round ex 8/77-3/78

P81 44.6 44 35 round ex 2/79-6/80

P79 53.6 44 35 round ex 7/80-

P90 53.6 44 35 square ex 12/80-7/82Turbo

P99 53.6 44 35 square ex 8/82-Turbo Hyd

H/GASKET HEIGHT DIA. C.C. PART #

L28 STD 1.25 88 7.60 11044-P7911

HKS METAL 1 91 6.50 11044-91MM1

HKS METAL 2 91 13.01 11044-91MM2

PISTON DIA MM. PIN HEIGHT DISH C.C. PART #

KA24E STD.cut .5 89 33.5 0.00 12010-40F10

KA24E +1.00 cut .5 90 33.5 0.00 12010-40F73

Z24 STD. cut .5 89 33.5 13.00 12010-83W01

Z24 +1.00 cut .5 90 33.5 13.00 12010-83W03

Z22S STD. 87 35.0 9.33 12010-06W11

Z22S + 1.00 88 35.0 9.33 12010-06W13

PRACTICAL PISTON / ROD / CRANK COMBINATIONS NO. PISTON ROD CRANK PIST/DECK +/- CC VOL+/- SIZE C.C.s

#1 KA24E STD.cut .5 L24 LD28 0.13 -0.80 3098

#2 KA24E +1.00 cut .5 L24 LD28 0.13 -0.83 3168

#3 Z24 STD. cut .5 L24 LD28 0.13 -0.80 3098

#4 Z24 +1.00 cut .5 L24 LD28 0.13 -0.83 3168

#5 Z22S STD. L28 LD28 -1.02 6.06 2960

#6 Z22S +1.00 L28 LD28 -1.02 6.20 3028

#7 KA24E STD L24 L28 -1.37 8.50 2949

#8 KA24E +1.00 L24 L28 -1.37 8.71 3015

ROD LENGTH PART # CRANK STROKE PART # BLOCK HEIGHT

L24 133.00 12100-N0102 L28 79 12201-P3000SV L28 207.87

L28 130.35 12100-A8703 LD28 83 12201-V0790

COMPRESSION RATIO USING HKS 1.MM HEAD GASKET FOR ABOVE COMBINATIONS HEAD #1 #2 #3 #4 #5 #6 #7 #8

E31 11.73 11.98 9.45 9.65 8.67 8.83 9.56 9.72

E88 11.24 11.48 9.14 9.33 8.41 8.56 9.23 9.39

N33 10.65 10.87 8.76 8.94 8.08 8.23 8.83 8.97

P50 10.65 10.87 8.76 8.94 8.08 8.23 8.83 8.97

N42 11.26 11.50 9.16 9.34 8.42 8.57 9.25 9.40

N47 11.26 11.50 9.16 9.34 8.42 8.57 9.25 9.40

P81 11.26 11.50 9.16 9.34 8.42 8.57 9.25 9.40

P79 9.71 9.91 8.14 8.31 7.53 7.67 8.16 8.30

P90 9.71 9.91 8.14 8.31 7.53 7.67 8.16 8.30

P99 9.71 9.91 8.14 8.31 7.53 7.67 8.16 8.30

I have a a L28 block and a E31 head and a N47 head to choose from, combination #3 and #4 look promising for compression ratio.

This should be made a 'Sticky'.

This is a a good one too, http://atlanticz.ca/zclub/techtips/calcs/engine%20builder/index.html