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 Post subject: 408 Build
PostPosted: Sun Apr 04, 2021 1:10 pm 
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Joined: Tue Oct 30, 2012 8:32 pm
Posts: 114
Can a factory Cleveland block (70) be used with a modern hydraulic roller cam, are lifter hold downs needed ? Also is it possible to get a good street performance build with an older Ford head like a B351 and its needed single plane intake with pump friendly compression of about 10 to1 ?


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 Post subject: Re: 408 Build
PostPosted: Sun Apr 04, 2021 3:28 pm 
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Joined: Mon Oct 29, 2012 9:05 am
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You can use link bar lifters easily, or you can use a short base circle cam and the OEM style lifter spider and dog bones. On a lot of blocks, the lifter valley needs to be ground on to make the dog bones fit.

It's easiest to just use link bar lifters.

"Street" is relative I suppose LOL

I don't see anything wrong with factory heads and a single plane intake if everything else is made to work with that combination.

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 Post subject: Re: 408 Build
PostPosted: Mon Apr 05, 2021 8:35 am 
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Joined: Tue Nov 06, 2012 12:02 pm
Posts: 494
The only issue I'd see you have with using those heads is finding an intake to fit under the hood. There were low rise single planes made by ford, but they were fetching a premium the last I checked. There are some aftermarket intakes that might fit with some port work, you'll have to do your own research on that.


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 Post subject: Re: 408 Build
PostPosted: Mon Apr 05, 2021 1:31 pm 
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Joined: Tue Oct 30, 2012 8:32 pm
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I realize street is interpreted in many different ways, the B351's are a aluminum head and rated at 300cfm with a very good raised exhaust port. The intake does fit under the hood with a samller reproduction 289hp type air cleaner. Im looking to shoot for 500 to 550 with a 4.30 rear and a double over drive stick. Brent how far out are you for specing a cam and what would be the best way to start this process, Thanks.


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 Post subject: Re: 408 Build
PostPosted: Mon Apr 05, 2021 1:38 pm 
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Joined: Mon Oct 29, 2012 9:05 am
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Week and a half on a hydraulic roller. I'd need to know flow numbers and all the info.

www.customfordcams.com

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Brent Lykins, Lykins Motorsports
www.lykinsmotorsports.com
brent@lykinsmotorsports.com


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 Post subject: Re: 408 Build
PostPosted: Tue May 04, 2021 8:54 am 
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Joined: Mon Oct 29, 2012 2:39 pm
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Pick your lifters carefully - have Brent recommend. I run a Howards hydro with their link bar lifters and they - lifters - sign off right at 6500. Which to Howards credit, they publish that as a spec limit. Other than that, no issues with the lifters or cam in many years. Raced regularly.

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http://raceabilene.com/kelly/hotrod
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