Price Check: 3.0 Liter with nice mods

[ricks234]

I'm thinking about parting out my 911, and the first thing to go would be the 3.0 liter. It is a 1981, with about 80,000 miles. Compression and leakdown numbers are great with no issues. The motor has the following mods:

11 blade fan
turbo valve covers
964 cam
Webb Aluminum Airbox

My question is, what would this motor be worth complete, with all wiring? Essentially, it'd be a plug and play swap.

Also, I have a 915 with 4.31 gears and a turbo clutch.

Would like to establish a fair price in here, and then post in the classifieds. Car is located in San Diego.

[mpetry]

If you have no history of the build and can only substantiate its condition by saying "runs good" then I think you'll be lucky to get 3500-4000 bucks for it. Does it have pressure fed tensioners ? At 80K miles it's getting time to think about taking the heads off and doing a valve job. If you can do a compression check or bleed down and the numbers are good, maybe a little more. Spending $30 for a spectroscopic oil analysis might tell a prospective buyer more about the condition of the engine - I'd definitely want that before I bought it.

Just my $0.02

[ricks234]

Yes, it has the tensioner update. Compression and leakdown numbers are good. Looking at ebay, these things are selling regularly around 6k, thats what I was thinking was fair. Cores are going for over 3500-4000...

[techweenie]

It's unlikely you have a 4:31 trans. More likely a 7:31 or 8:31. the latter would be correct for a stock SC.

[ricks234]

this transmission is not stock, I was told 4.31, but maybe I'm mistaken and it is a 7.31...