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Registered
Join Date: Oct 2002
Location: Northern California
Posts: 786
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I am looking to sell my 81 SC motor in the near future for a 3.2 swap. I need to know what a fair asking price is. The motor has 225,000 miles on it and as far as I know it has not had a rebuild. It runs well but goes through 1 quart of oil every 500 miles - it also has two leaks. One minor leak from the crankchaft pulley seal and one moderate leak from the oil cooler area. It will come with all the fuel injection stuff and has the upgraded tensioners and pop off valve. What is the market price for a motor like this?
Thanks for the help. |
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Information Junky
Join Date: Mar 2001
Location: an island, upper left coast, USA
Posts: 73,189
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with 225,000 miles on it and the leakage/burning, I would say it falls into the catagory of a "core motor" . . .~$1500-2000.
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Everyone you meet knows something you don't. - - - and a whole bunch of crap that is wrong. Disclaimer: the above was 2¢ worth. More information is available as my professional opinion, which is provided for an exorbitant fee. ![]() |
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Registered
Join Date: Oct 2002
Location: Northern California
Posts: 786
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Ok, thanks!
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Super Moderator
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I'd say Souks estimate was more than fair. Hopefully by 225K it's had at least one top end rebuild and the bottom end is looking pretty tired. What are the oil pressure readings?
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Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
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Registered
Join Date: Oct 2001
Location: San Carlos, CA US
Posts: 5,523
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I don't know if I would pay that much for a core motor, then spend $5K-$7k more rebuilding it.
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Porsche 2005 GT3, 2006 997S with bore-scoring Exotic: Ferrari F360F1 TDF, Ferrari 328 GTS Disposable Car: BMW 530xiT, 2008 Mini Cooper S Two-wheel art: Ducati 907IE, Ducati 851 |
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Registered
Join Date: Oct 2002
Location: Northern California
Posts: 786
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The oil pressure reads about 120 psi at full throttle and about 20 psi at idle with 20W50 synthetic oil at 180 degrees. I am the third owner and the PO, who was about 75 yrs old, could not recall if it had a top end rebuild but did recall spending $5000 for a service at about 135K. When I got the PPI done at 223 K the mechanic told me that the car runs strong and he suspects that it has had a top end rebuild but there is no way of knowing for sure.
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Registered
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If I may chime in here I'd like to ask why the rebuild prices are so high for 911 motors. I have looked at a couple of rebuild kit prices for the parts and I dont come up over 3500 dollars, keeping in mind of course that I would be doing all my own labor except for machine work I.E. valve guides and seat grinding etc... But I still come up on the low end of 4k for a pretty thorough rebuild. Am I missing something that brings the end figure up past the 5k mark?
School me please...thanks! Stormin ![]()
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78 911 SC "Scratchy" 2004 Mini Cooper S "Pele" (gone but not forgotten) 1979 classic mini clubman-"Coolio" |
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Super Moderator
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That's pretty darn good oil pressure fro 225k miles.
Norm... 40 hours of labor!
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Chris ---------------------------------------------- 1996 993 RS Replica 2023 KTM 890 Adventure R 1971 Norton 750 Commando Alcon Brake Kits |
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Registered
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Pardon my ignorance but what is the going rate at say a Porsche specialist shop Non-dealer type?
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78 911 SC "Scratchy" 2004 Mini Cooper S "Pele" (gone but not forgotten) 1979 classic mini clubman-"Coolio" |
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Registered
Join Date: Aug 2002
Location: MD
Posts: 5,733
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Varies greatly, I think $70-100/hr is common.
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Author of "101 Projects"
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Norm, at 225,000 miles, the pistons and cylinders are surely worn beyond their useful life. Those alone are $3K!
-Wayne
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Wayne R. Dempsey, Founder, Pelican Parts Inc., and Author of: 101 Projects for Your BMW 3-Series • 101 Projects for Your Porsche 911 • How to Rebuild & Modify Porsche 911 Engines • 101 Projects for Your Porsche Boxster & Cayman • 101 Projects for Your Porsche 996 / 997 • SPEED READ: Porsche 911 Check out our new site: Dempsey Motorsports |
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Banned
Join Date: Jul 2001
Location: los angeles, CA.
Posts: 41,257
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120 lbs. of oil pressure is pretty darned impressive since that motor is supposed to top out at 4 bar, (58lbs.).
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Registered
Join Date: Oct 2002
Location: Northern California
Posts: 786
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Yea, that is according to the gauge.
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