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 Post subject: Camshaft ID
PostPosted: Fri Jan 29, 2021 11:13 pm 
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4 BBL ''Hyper-Pak''
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Joined: Sat Dec 12, 2020 1:53 am
Posts: 36
Car Model: 1974 Dodge D100
Hello I am rebuilding a slant and wondering if anyone can help me identify this cam.
[img] https://ibb.co/Fq3LK9D
https://ibb.co/kx4MNYk
https://ibb.co/6DgDbx9 [/img]
Next to the D4 is seems to have the numbers 253 24?? Its hard to tell the marks are not too prominent.


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 Post subject: Re: Camshaft ID
PostPosted: Sat Jan 30, 2021 6:23 am 
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Board Sponsor & SL6 Racer

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Location: Waynesboro, Pa.
Car Model: 65 Valiant 2Dr Post
Look on the ends of the cam for numbers. That is where you normally find the cam grind / manufacturer numbers.

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 Post subject: Re: Camshaft ID
PostPosted: Sat Jan 30, 2021 10:26 am 
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4 BBL ''Hyper-Pak''
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Joined: Sat Dec 12, 2020 1:53 am
Posts: 36
Car Model: 1974 Dodge D100
I dont have anything on the ends
[img] https://ibb.co/dKRFpL2
https://ibb.co/5hR8yvD [/img]


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 Post subject: Re: Camshaft ID
PostPosted: Sat Jan 30, 2021 4:31 pm 
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Supercharged
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Location: SW Washington
Car Model: Fiat 500e
Is there some reason you think the cam is other than stock?

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 Post subject: Re: Camshaft ID
PostPosted: Sat Jan 30, 2021 10:30 pm 
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4 BBL ''Hyper-Pak''
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Joined: Sat Dec 12, 2020 1:53 am
Posts: 36
Car Model: 1974 Dodge D100
I'm not too sure about the origins of the motor and it seems like someone has been through it before. Figured someone much more familiar than I would be able to tell right away if it was stock or not.


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 Post subject: Re: Camshaft ID
PostPosted: Sun Jan 31, 2021 4:58 am 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
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Location: Silver Springs, Fl.
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Do you have a "caliper"? If you do, measure across the high part of the cam. Then meAsure across the lobe 90 degrees (lower area). Subtract the numbers, then multiply by 1.5. That will give you the approx lift of the valve. Very hard to measure the duration "on the bench", but the lift might indicate whether it is a stock cam or not.

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