it was pretty heavily modified. I replaced the stock 1.6 liter with a 17k mile 2.0 liter. I added a “Japan market only” SSS performance large valve head and distributor, dual Webers, headers, 2 1/2” Ansa exhaust.
There was no internet back then, and I wasn’t positive the longer block 2.0 would fit under the hood, so I put putty on the top of the valve cover and brought the hood down slowly to see if there was clearance first time I tried to close it (fortunately it fit).
Both the 1.6 and 2,0 are the same engine as used in the 240z with 2 cylinders chopped off. My friend had a BMW 2002 at the same time (this was when we just started college) We never really raced, but pretty sure the 510 was quite a bit faster. It would keep up with my brother’s 240Z. Pretty good performance back then, but not relative to today (though the 2-valve-per-cylinder Japanese 4’s had low-end torque back then, so they felt very strong in normal driving versus many modern 4-valve-per-cylinder Japanese 4’s today).
I thought the engine compartment was as clean as I could make it back then as a youth, but there is a lot that I’d tidy up today (if I still had it) looking back at these scans of old (early 80’s) photos now.
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