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Still in the crate. Has odd exhaust ports. Has anyone seen this before?

Also has an odd "temperature sensor bung" that looks like it was welded on. Maybe for use in the 280ZX? N42 heads didn't use the cylinder head temperature sensor.

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No Reserve: Datsun L28 Crate Engine

Bid for the chance to own a No Reserve: Datsun L28 Crate Engine at auction with Bring a Trailer, the home of the best vintage and classic cars online. Lot #190,091.


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Already $1800. I'm surprised it's that high considering it's been sitting and you really don't know what you've got until you take it apart.

Is the compression ratio a turbo level compression ration?

Somebody called datsunparts bid $2200. There's a business called datsunparts, looks Roadster focused. Might be worth more parted out. Those exhaust ports are weird. Maybe it's a "detuned" L28 for a different model. Maybe the Z's got the good stuff.

https://datsunparts.com/

Here a pic of my euro N42 head and N42 engineblock.. (Year is 1979.)

20211012_172748.jpg

On 4/26/2025 at 4:43 AM, Zed Head said:

Has odd exhaust ports. Has anyone seen this before?

@Zed Head I often see those gasket and oilseal sets for the L24-L28 engines, they have round, square and diamond shaped exhaust outlets so i'm not surprised to see those round ones.

(The diamond called one is a hexagonal exhaustport.)

I asked myself if it's normal that there is paint within the oilfilter cavity, but my 1979 N42 has it also.. BUT..

There should NOT be any paint on the contact surface of the oilcardridge !! 😀 so that new engine is a fake?? Blue paintwork also does not look as if it's 40+ years old! (I got a new painted block in my garage under a cover and was painted new in 1990.. it does not look that fresh! AND It was under a thick cover all these years! )

20210930_143925.jpg

ALSO, the original painted block has no paint on the waterplugs! (AND many other contact points, see pic in above reply)

Who sees more differences.. (Besides the sensor welded stud near the sparkplug 5 hole.)

Edited by dutchzcarguy

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