Fair point yet KA block is much heavier than L20b especially after L20b is bored to suit KA sized slugs.

On the L18 pictured below - the owner chose it for its weight savings even over the L20b, the L20B has better clearance 227mm vs (247mm KA24DE)making it 20mm taller allowing better design inlet tract without hitting the bonnet. So the L18 is 40mm lower than a KA with a fair it of weight savings. Not to mention 3mm off the bores is like removing 4 x 3mm thick cast iron pipes.

bare block weights -/+ 1kg bare with mains caps

A12 = 30kg
L16 = 37kg
L18 = 44kg
L20B = 50kg
KA24DE = 63kg

Those weights are from "Dave" & others on Ozdat inc myself for the first 3 engines supplied by some members to satisfy my weight based fetish. Weighing was done on bathroom scales subtracting final weights from our body.

"Ken Graham's 240+ rwbhp KA24DE Datto 1600 is the record holder for IPRA O2L at MtCotton"

I like the sound of that pity many club, hillclimb & circuit privateers dont get much coverage of their feats & cars.

At least there's a choice for those willing to toy with the front timing case & other bits for a nice "non pollution" relatively old school looking L series based engine.

Unlike rare LZ heads the KADE heads can be had at Pick-a-tart for 35 a pop on 50% specials week and L20b bottom ends for 20 or beer.

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nice, that sorta n/a power & revs would be bags of fun in a 1200 (on a racetrack)

The reason given for using L-block with KA-head is given as "the KA crank and rods are not strong enough". I do not know if that is true or not.

To make 290 HP the engine will have to revved quite high (8350 RPM in this case).

Quote:

why would I be 'not impressed'? I've always been a fan of the L series.

there's nothing new about making power from the KA24DE head though. But unless you were going for an U2L build, I have NFI why you wouldn't just use the whole KA engine rather than messing around putting the head on the Lseries bottom end.

My old mate who I shared my L powered 1200 coupe racecar with lis SWR Lseries donk, now has a 2.6 litre stroked KA24DE in his 1600 now making good power with more to come.
And Ken Graham's 240+ rwbhp KA24DE Datto 1600 is the record holder for IPRA O2L at MtCotton. Its been making good power and going very fast for many years...

KA24DE weighs 167 kgs. And the L-series block is practically identical.

Thats what I thought, no dyno queen but for their first couple they have built there is more potential and shouldnt weigh more than 140kg going into a 1600 for clubsprints. Still makes more power than some boosted modern engines.

Can only imagine it in a datsun 1200 or caterham lotus 7.

are you guys serious? this thing makes 220odd flywheel kw. sound pretty good to me! it doesnt have to be a guiness world record to be good. i reckon itd be a real grunter in a little datsun!

Nissan pulsar vzr n1 has a greater specific power per litre than Hondas almighty S2000

1596cc 150kw = 93.98 kw/l

Limited production vehicle,

impressive,

and a NISSAN!

i do'nt think so

Are we talking street car or track ?? In 1993 I bought a speedway motor ( 1.4 NA ) which was dynoed at 177hp and 126 bhp thats around 125hp / L . Same year Gordon Dobie (dick head) claimed 181hp and 132 bhp (1.2). There was a guy that claimed 300hp in WA about 1990 ( 1.3 twin turbo) in a bugeye sprite.... So 126 hp per litre for a 2.3 isnt that impressive