Here is some stuff I found on a 510 board. Hope it helps some.
Connecting rods center to center length
Z24, KA24 165.0mm
Piston pin heights (center of pin to top of piston)
L13, L16, L18, L20B, L24, L26, L28- 38.1mm
Z24, KA24 34.0mm
Block deck height, (center of crank bore to top deck)
L13, L16, L18, L24, L28: 207.8mm
L20B, Z20, Z22: 227.4mm
Z24, KA24: 247.4mm
(stroke/2)+connecting rod+ piston pin height: 207.95mm
piston deck height: 0.15mm (above block)
(stroke/2)+connecting rod+ piston pin height: 207.3mm
piston deck height: -0.5mm (below block)
(stroke/2)+connecting rod+ piston pin height: 227.0mm
piston deck height: -0.40mm (below block)
(stroke/2)+connecting rod+ piston pin height: 227.15
piston deck height: -0.25 mm (below block)
Please let me know what dish of Z20 pistons is! Do you at least know if they
are flattop or dished?
(stroke/2)+connecting rod+ piston pin height: 227.16
piston deck height: -0.24 mm (below block)
Rod length given as same as Z20E on the incorrect charts, Impossible
considering piston pin height! Using the Z22E rod length, the calculations
seem much more reasonable.
(stroke/2)+connecting rod+ piston pin height: 226.9
piston deck height: -0.50 mm (below block)
(stroke/2)+connecting rod+ piston pin height: 227.1 mm
piston deck height: -0.30 mm (below block)
Rod length given as same as Z22S/L20B on the incorrect charts.NISMO catalog
list the 148.6mm length that seems more reasonable and puts piston top where
it should be at TDC.
Motor: Z24 (piston pin height speculative!)
(stroke/2)+connecting rod+ piston pin height: 247.0mm
piston deck height: -0.40 below deck (using 34.0 pin height pistons- my
Please let me know what dish of Z24 pistons is! Do you at least know if they
are flattop or dished?
Frankenstein motors: collect all the parts at pick-n-pull JY and buy it as a
$50 short block!
Stuff a Z24 crank and pistons into bored Z22 block by cutting down crank
counterweights as per Ben Pila. This gives you a 2.4 L-series motor that
doesnt require using defective Z24 block, fabricating timing cover,
lengthening timing chain. Piston tops will need to be milled down slightly.
parts: : Z22 block, Z24 crank, z24 pistons, 22S/ L20B rods
piston deck height: 0.50 (above deck)
Stuff a Z24 crank into a Z22 block by cutting down counterweights. No piston
modification or block boring needed for 2.3L L series!
parts: Z22 block, Z24 crank, z22E pistons, Z22S/ L20B rods
s/2+r+p: 226.4 mm
piston deck height: -1.0mm below deck
Long rod 2.1L motor in a +2mm bored L20B (or stock bore Z22) block. Might be
necessary to mill tops of pistons.
parts: L20B crank, 2.2E pistons, z20e rods, L20B block
piston deck height: +0.50mm (above block)
Long rod ,big bore 2.1L Another variation of above (rods not as long, no
pison modification, lower CR)
Parts: L20B crank, L20B block, 2.2S pistons, z22e rods
piston deck height: -0.80 (below block)
This is my current short rod L16 for turbo use. Approx 7.8:1 CR using 37cc
parts: L16 crank, L18 rods, L13 pistons, L16 block.
piston deck height: -2.65mm (below deck)
Long rod L18 (needs small chamber head for decent CR)
Parts: L18 crank, L18 block, L16 rods, Z20S pistons
piston deck height: -0.24 (below deck)
Parts: Z22 crank, Z22block, 2.2E pistons, Z22S/L20B rods
piston deck height: -3.00 (below block)
Long rod, turbo 2.1
parts: L20B crank, L20B block bored 2mm over, 2.2e pistons, z22e rods
piston deck height: -3.30 (below block)
<font color=red>89 Nissan KingCab 4x4</font color=red>