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post #1 of 5 (permalink) Old 05-30-2007, 09:39 AM Thread Starter
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better than stock?

how would i know if my engine was rebuilt with better-than-stock parts? i bought it at a j/y out of a 97 bird that had a tree fall on it in katrina. he said that the guy that owned the car had just had the engine rebuilt about 3 months prior to the tree incident. i think i got a really good deal ($550) because this thing runs really well. i was just curious because it seems to have a LOT more power than the previous engine did. i think i actually broke traction into 2nd on dry pavement (awesome for 3.8!) are there any easy ways to see? thanks ahead of time...
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post #2 of 5 (permalink) Old 05-30-2007, 05:40 PM
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as far as rebuilt with better than stock parts as in for duability maybe but aftermarket work i doubt it if he didnt say anything and sold it for that price

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post #3 of 5 (permalink) Old 05-30-2007, 09:35 PM
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1. Tear down the block and look
2. If you seriously think you have some form of a power gain, you could always go for a dyno run and see if your numbers are out of the normal range for a stock 3.8 V6.
3. Try to see if the J-yard has a phone number or remembers the guys name and try to contact him about what components he had put into the motor. Most yards keep titles for vehicles due to legal issues, and most places won't allow a yard to scrap a vehicle without a title.. so odds are they have one for it if the car is still in the yard.

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post #4 of 5 (permalink) Old 05-31-2007, 10:11 AM
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Other than the things already mentioned... You can try doing a compression test and compare your numbers with those who have done compression tests on similar engines in stock form that are in good condition. If the numbers are similar, then your engine is probably stock. However, if there is a difference (higher or lower) it means somethings been changed (cam/rockers/something) however it won't tell you whats been changed or anything other than it has changed.

Otherwise, consider it stock and enjoy the "new found" power it makes.

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post #5 of 5 (permalink) Old 05-31-2007, 10:31 AM Thread Starter
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i'll try to contact the previous owner and if that doesn't work out, i'll go with what you said, gs69350. dyno's are too expensive for me to waste money on. when i bought it i asked if he had any paperwork on it but he didn't. maybe i sould have gotten the trans too...anyways, the car hit the crusher after i got the motor, so as for the title i doubt it. maybe he has a number. i'll see what i can do. thanks for the input.
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