Everyone seems to have heard of a mechanic that says Porsche V8s have a 7 foot timing chain that runs from front to back. The mechanic is used to Chevy motors and we all think that there's something wrong with Porsches because the mechanic has never seen one. We think they are so scary that we threaten shotguns upon the prospect of seeing something that dares to be different.PackardV8 wrote:As much as I loved driving the 928, if someone tried to give me one today, I'd chase him off with a shotgun. The local Porsche dealer is relatively new and if he didn't sell it, he doesn't want to see it in his shop. There's literally no one in 300 miles who stocks any parts; much less anyone who's ever seen the inside of a 928 V8 or knows how to change the water pump. I've been inside one and hope never to go there again.And you can buy a low miles, perfectly running, 32-valve quad-cam 5.0L Porsche V8 complete with harnesses and auxiliaries off Ebay for $2500.
jack vines
Jack, you have PACKARD in your name but are turned off by engines that don't have parts stocked locally?
The Porsche 928 32v was the first mass produced engine typical of many modern 4v engines, it's timing belt and other features are not unusual, the hydraulic OHC bucket valvetrain is typical and not unusual. Aside from it being different back in the day, it's pretty typical of current engines.
Parts are available, many trough Worldpac. There are 928 specific companies and aftermarket efforts.
In all of the letting lazy mechanics determine everybody's opinion of them, please consider:
4.803 bore spacing same as a Mopar 440, nice 4 valve heads. That means these are big block 4v engines just waiting for a brave hot-rodder.
Mine is 427 cu in, oversquare, 4.28 bore, 3.7 stroke, the piston doesn't poke out of the bottom of the cylinder like many common domestic strokers with sealing issues. It has 4 valves and makes power typical of a 4v engine without high valvespring pressure and pushrod problems.
I see 640hp on a chassis dyno with 93 octane and 10:1 with no detonation and it drives like a lamb. Try that with another 427 cu in engine that your mechanic says is great because parts are locally available.