1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Cash value of a streetport motor with <2k?

Old Jul 16, 2002 | 12:08 AM
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Cash value of a streetport motor with <2k?

I'm thinking of selling my current motor to help pay for a bigger streetport. This one is cut at 58 degrees (it may have been something else, I have it recorded somewhere), has the water jacket modification, the 17.5mm oil pump, mazdacomp oil jets, lightest front counterweight, 80 or earlier rotor housings, lightest 12A rotors and the 23# flywheel. I built the motor myself, it runs perfect and has lots more power than my stockport had, but I want to go faster. About 1800 miles on the clock.

How much is it worth on the open market? I can ship and I'd be more than willing to install it in someones car if they paid me.
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Old Jul 16, 2002 | 08:33 PM
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No one wants a streetport?
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Old Jul 16, 2002 | 10:16 PM
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Just like any modded engine, no one wants to pay you what you think it's worth...I can tell you for sure that no hi-po engine ever resells for what it cost to put it together...you can't even get the total price of the parts in the engine on a resell situation. I'm thinking that most of the members in this 1stgen corner are all tossing the number $500 in their head. Would you accept that amount? That's why no one will reply...
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Old Jul 17, 2002 | 02:13 AM
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I've seen stockports with tens of thousands of miles go for more than that. I guess I'll just keep it then and save up for the big one, maybe I'll go bridge.
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Old Jul 17, 2002 | 07:59 AM
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you could get $800.00 out of it,

i dont think any more then $1,000.00 though
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Old Jul 17, 2002 | 09:20 AM
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lightest front counterweight, 80 or earlier rotor housings, lightest 12A rotors and the 23# flywheel
That doesn't make sense? If you put it together with the lightest 12a rotors from a 83-85 and used a earlier front counterweight from a pre 83, the engine would be out of balance. It would run, but would have some vibration when you rev it up near or above 7000rpm.

qoute from Mazdatrix:
Important note on counterweights: The front and rear (or flywheel) counterweights PLUS the rotors make a balanced assembly. The years / rotors we list in the following charts are for PRODUCTION years of the rotors / counterweights! A lot of mixing can be done when building engines, providing the rotors and counterweights match. By this we mean 89-92 non-turbo rotors (lighter weight, higher compression) can be used in an 84-85 13B engine as long as the matching front and rear counterweights are used also, for instance.
I wouldn't run that engine without the right front counterweight on it if I were you. Did i miss something?
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Old Jul 17, 2002 | 12:07 PM
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From: Troy,Mi
Originally posted by WackyRotary


I wouldn't run that engine without the right front counterweight on it if I were you. Did i miss something?
uh oh
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Old Jul 17, 2002 | 01:19 PM
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NOW the number going through everyone's head is about $300 and they're hoping you didn't run it too much so they can correct the mistake on the cheap...
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Old Jul 17, 2002 | 01:20 PM
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Don't worry, I did my research. No vibrations up at 8500 so I'm sure I got the right advice on the counterweights (from Mazdatrix).
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Old Jul 17, 2002 | 01:22 PM
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Originally posted by mar3
NOW the number going through everyone's head is about $300 and they're hoping you didn't run it too much so they can correct the mistake on the cheap...
Everyone sure is quick to fall in line with the crowd, aren't they?
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Old Jul 17, 2002 | 01:38 PM
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The worst pack of sheep I've seen in a while...just try attacking any topic that falls under rotary religious dogma and watch the ants pour out of the mound....
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Old Jul 17, 2002 | 09:49 PM
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From: Troy,Mi
Originally posted by mar3
NOW the number going through everyone's head is about $300 and they're hoping you didn't run it too much so they can correct the mistake on the cheap...


try $150.00

im selling mine for $300.00 and its factory balanced
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Old Jul 17, 2002 | 09:54 PM
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You still gonna sell me that hood V8?!
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Old Jul 18, 2002 | 01:19 AM
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Originally posted by V8kilr
try $150.00

im selling mine for $300.00 and its factory balanced
Every rotating assembly was balanced by the factory, so that doesn't really say too much. Now if it was a balanced factory race motor...
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Old Jul 18, 2002 | 11:20 AM
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Originally posted by nimrodTT

Every rotating assembly was balanced by the factory, so that doesn't really say too much. Now if it was a balanced factory race motor...
Then he could ask for $400!!
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Old Jul 18, 2002 | 01:42 PM
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Value is usually somewheres in between what you want and what they want to pay. Its called making a deal.
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