Norfleet cam

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Apr 4, 2017 | 12:08 PM

dirtfrmr57

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Norfleet cam

I am doing a 390 build for my mid-70's F250. I am looking at a Master Rebuild kit from Mabbco in TX that offers a Norfleet reground hydraulic flat-tappet cam with 264 duration that they recommend for towing/low-end torque. Does anybody have feedback about Norfleet's cams? Thanks. Kirt

Apr 5, 2017 | 02:03 PM

krewat

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From: Long Island USA

Never heard of them, and I guess no one else here has either.

Why go with a regrind?

Apr 5, 2017 | 03:37 PM

dirtfrmr57

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Agreed. It was part of a complete over-haul kit and purchasing everything together kept life more simple. But the cam issue caused me enough concern that I switched to another kit that includes a new Eglin that looks like it should give good torque. (.214/.224 duration @ .050" and .512/.538 lift)
Is there a way to request a thread be discontinued?

Apr 5, 2017 | 03:53 PM

85e150

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Once people stop posting, it will just keep falling down the page until some newbie posts on it 10 years from now.

With your rebuild kit, check the piston compression height. Pickup motors are going to have 1.66" (approx.) compression height. That leaves the piston down the hole over .100. Ford did that to reduce compression for reliability under heavy loads. Car pistons are approx. 1.77 and bring you up to .030 or less. Much better for compression and quench and all that good stuff.

Good luck with it.