75.5mm pistons and 83mm stroke is strange if derived from a H series
as the H series engines all have massive bores around 85-92mm bores
https://en.wikipedia.org/wiki/Nissan_H_engine

K engine I think is a reworking of the H engine but with L-ported pushrod head. Same stroke as the H20

Since it comes in sizes up to 2.5 liter it definitely is not based on the A-engine. The K15 is the destroked, derated version that can run flat out all day long

Ummm
Does it have the same bore spacings as an A15
The Stroke is 1mm longer, bores 0.5 bigger
Could it be a reworked A15 engine?
Would love to see the head pattern and crankshaft
to see if its possible to use those parts in an
A14 or A15 block as the head design looked good
on the K25 but no idea of the K15 visually.

Considering A15 engines are so rare now this
could be an awesome upgrade

Quote:it appears to be only used in forklifts so there's less info available

1486cc
75.5mm bore
83mm stroke
35hp @ 2450 rpm

Komatsu Forklifts
FG10-20 K15 Engine 2004-2009
FG15-20 K15 Engine 2004-2009
FG18-20 K15 Engine 2004-2009

MITSUBISHI FORKLIFT
FG15ZN K15 Engine 2004-2009
FG18ZN K15 Engine 2004-2009

NISSAN FORKLIFT
L01 K15 Engine 2004-2009
1F1 1.5 ton
1D1

TCM INDUSTRIAL FORKLIFTS
FG15C-13 K15 Engine 2004-2009
FG15T-13 K15 Engine. 2004-2009
FG18C-13 K15 Engine 2004-2009
FG18T-13 K15 Engine 2004-2009

I totally forgot that Mitsubishi was sold as Dodge here in the U.S. which is really funny considering I owned a Plymouth Arrow for a few years.

DODGE CHALLENGER 1978-1979
DODGE COLT 1971-1983
DODGE COLT DL 1984
DODGE COLT E 1984
HYUNDAI PONY 1983-1987
HYUNDAI STELLAR 1985
HYUNDAI STELLAR GSL SUPER 1986
HYUNDAI STELLAR SL DELUXE 1986
PLYMOUTH ARROW 1976-1980
PLYMOUTH CHAMP 1979-1982
PLYMOUTH COLT 1976-1983
PLYMOUTH COLT DL 1984
PLYMOUTH COLT E 1984
PLYMOUTH HORIZON 1983
PLYMOUTH SAPPORO 1978-1979
PLYMOUTH TURISMO 1983

So what North American car uses 4G32B engine/pistons?

Yeah those Mitsu 4G32B pistons are dished. There is a pic in our Overbore tech article

from another members post

"Last A14 I built in the early 90s used some sort of Mitsubishi piston - looks like it was a G32B piston. 76.9mm, 33mm Comp ht and 19mm pin. It was about .040" oversize for the A14 and with .020 or .030" (.5-.75mm) milled off the crown - really just the outer edge to get the comp height down. Trawl through an ACL catalog... Way cheaper than getting stuff made."

whats the bore and stroke of stock K15?
Ive always thought the chevy hemi 2ltr L4
was the only option to emulate a good OHV
but with more capacity than the A series.

Toyota guys are lucky the 7k series was
1,781 cc or 1.8L and able to change to
Liteace 2.0 & 2.2 ohv Y series