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some thing interesting

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Mater

Post subject: some thing interesting

Posted: Tue Sep 30, 2008 7:15 pm

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ok i am going to school to be an auto tech. so to day where wherre mesuring cams and happen to use my old stocker. so here is the odd part it had .288 of lift on both the int and exh lobes :shock:

every one so we did it agian same number used a diffrent micrometer same number :shock:

so we checked the GM spec for the lobe lift .258 int and .255 exh. ok odd. grabbed one from the back (we have lots of 3800s) and it was .257 int. and .253 exh..

we are going to check the duration tomarrow. i think i know why my car seemed faster then it should of been when it was "stock" :???:

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gpkid00

Post subject: Re: some thing interesting

Posted: Tue Sep 30, 2008 7:37 pm

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are you sure it was the stock cam?

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Mater

Post subject: Re: some thing interesting

Posted: Tue Sep 30, 2008 7:40 pm

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no i am not, witch is why i am going to check the duration tomarrow

gpkid00 wrote:

are you sure it was the stock cam?

it was the one from the car if that is what you ment

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

Last edited by Mater on Tue Sep 30, 2008 7:42 pm, edited 1 time in total.

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Bri98GT

Post subject: Re: some thing interesting

Posted: Tue Sep 30, 2008 7:49 pm

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What yr 3800 and model car did the cam from "in the back" come from. Not every 3800 used exactly the same cam.

As for the one in your car, that may have been the original cam. Mass maufacturing always has a few that "make their way through". Your car may have been the lucky canidate of a bigger then normal cam.

You always hear of "factory freaks" now and then.

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Mater

Post subject: Re: some thing interesting

Posted: Tue Sep 30, 2008 7:53 pm

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the cam from the back was from a 2003 3800 N/A never has seen a car.

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97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

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Reptile

Post subject: Re: some thing interesting

Posted: Tue Sep 30, 2008 8:36 pm

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Here's some food for thought........IIRC, ALL of the L36's and the L67's shared the same cam grind. :idea:

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BlitzGT

Post subject: Re: some thing interesting

Posted: Tue Sep 30, 2008 9:02 pm

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Probably just came from the factory like that. If you get the rest of the numbers you can check it against the table someone made and figure out if it is an aftermarket cam.

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Mater

Post subject: Re: some thing interesting

Posted: Tue Sep 30, 2008 10:29 pm

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BlitzGT wrote:

Probably just came from the factory like that. If you get the rest of the numbers you can check it against the table someone made and figure out if it is an aftermarket cam.

we are putting it in an engine tomarrow to get the valve timing

Reptile wrote:

Here's some food for thought........IIRC, ALL of the L36's and the L67's shared the same cam grind. :idea:

you are 100% correct just the camshaft sprocket is diffrent for the cam degree

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92 LeBaron Convert: Turbo 3L 97 Grand Prix GT 4dr "Frankenstein": L67 4t65 swap
97 Grand Marquis: Summer DD 99 Grand Prix GTP: Top Swap Beater

Last edited by Mater on Tue Sep 30, 2008 10:30 pm, edited 1 time in total.

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