[m21sniper]

The problem is that there are so few 928 V-8 motors around. It was a very low volume car. I think world wide sales only topped 2000 units a couple times during it's entire 18 year production run. The 928 was the flagship of the Porsche line, so it was intended to be highly exclusive and low volume. I rarely see another 928 on the road (probably less than a dozen in the 4 years i've had the car). Also, buying 928 motors is not cheap. What IS cheap is buying older model 928s with perfectly good running motors in them(esp. old neglected junkers).

To just go buy a 928 motor at the dealer(i can any factory Porsche motor at wholesale for anyone interested) would cost you about $8 grand. Used they're about $3500. However, a smacked up 84 Euro with a 310hp 4.7 liter mechanical injected V-8 will only set you back about 3 grand for the whole car, and after you get done parting it out, the motor will end up having cost you virtually nothing.(while 928s have not held their value in general, the parts very much have, lol)

There are also a wide variety of motors that were used.

The US 928's started with the 219hp US 4.5 liter in the 78-82 models, and gradually increased in displacement and power to the 345hp 5.4liter motor in the last GTS models. All have their plusses and minuses, but even the early mechanical injection 4.5 models will approach 400rwhp with a supercharger running a mere 6lbs of boost.

The motors are also fully strokable too, and HUGE power gains are available going that route. The top 928 racer is running a naturally aspirated 6.4 liter stroker and is putting out close to 600rwhp naturally aspirated. Of course stroking a 928 motor is BIG money, but the results are worth it if you have the extra coin laying around.

But, say you bought an 83 US 5spd for $4000 USD in 'fair' shape(which you could do if you perused ebay for a while looking for the right car). For the additional cost of $3500 USD you can add the stage II complete supercharger kit (or for $5500 the turbo kit), approach 500rwhp, and for under 8 grand you have a V-8 PORSCHE powered, and highly exclusive supercar that will easily top 190mph, run will into the 12 second 1/4 mile ET range, and generally outperform cars costing more than 10x it's value....including in the curves (esp. if the 928 has the factory Bilstien/Eibach/limited slip options, like mine).

The 928 is IMHO the greatest bang for the buck on the roads today. Thank god the porshe-phile purists didn't 'take' to them....cause by rights the cars should be worth 4-6x what they are, based on actual merit and quality.

Go figure...