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 Post subject: 264 cam
PostPosted: Mon Jul 30, 2018 7:52 pm 
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1 BBL (New)

Joined: Mon Mar 05, 2018 11:23 am
Posts: 3
Car Model: '67 Plymouth Valiant
What would the valve lash be set at for a 264 duration cam? Thanks in advance!


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 Post subject: Re: 264 cam
PostPosted: Tue Jul 31, 2018 2:27 am 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8800
Location: Silver Springs, Fl.
Car Model:
Who's cam is it? Crane, Comp, Clifford, Etc?

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


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 Post subject: Re: 264 cam
PostPosted: Tue Jul 31, 2018 7:53 pm 
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1 BBL (New)

Joined: Mon Mar 05, 2018 11:23 am
Posts: 3
Car Model: '67 Plymouth Valiant
It’s a Clifford


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 Post subject: Re: 264 cam
PostPosted: Wed Aug 01, 2018 7:29 am 
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Turbo EFI
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Joined: Mon Aug 02, 2010 7:36 am
Posts: 1200
Location: Rome, GA
Car Model: 1963 Dart 270, 1980 D150
According to Clifford's website their 264 cam is hydraulic lifters, so zero lash.

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 Post subject: Re: 264 cam
PostPosted: Thu Aug 02, 2018 4:48 pm 
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EFI Slant 6

Joined: Sat Mar 19, 2016 7:25 pm
Posts: 408
Location: SW PA
Car Model:
:shock: :shock: Yeeaaahhhhh, I'd stop right there, unless it's an older Cliffy design, (& I can't recall
them ATM) then You shouldn't/wouldn't have adjustable rockers to begin with to go with that cam. That's
a completely different rocker/tappet/pushrod setup, & if You're trying to run a Hyd. cam w/mech. valvetrain, it ain't gonna go well.......................


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 Post subject: Re: 264 cam
PostPosted: Thu Aug 02, 2018 4:58 pm 
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EFI Slant 6

Joined: Sat Mar 19, 2016 7:25 pm
Posts: 408
Location: SW PA
Car Model:
Now if You have a Hyd. cam & valvetrain, then You would be looking to check the lifter preload,
and using pushrod length changes or rocker shaft shimming to adjust it. Pushrod length correction being
the best choice, unless shimming the shaft will be minor, or actually improve geometry in doing so. I've
not played with Hyd. valve train on Slantys, so I'm not sure how "on" or not they are stock, plus Your
actual set-up (valvestem height etc...).


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 Post subject: Re: 264 cam
PostPosted: Thu Aug 02, 2018 9:43 pm 
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1 BBL (New)

Joined: Mon Mar 05, 2018 11:23 am
Posts: 3
Car Model: '67 Plymouth Valiant
Thanks everyone for the input . Yea that is my problem the Previous owner set it up with mechanical valve train on a hyd. Cam . No wonder it would always make a “ salt shaker” noise LOL .


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 Post subject: Re: 264 cam
PostPosted: Fri Aug 03, 2018 1:28 am 
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SL6 Racer & Moderator
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Joined: Sat Oct 19, 2002 12:06 pm
Posts: 8800
Location: Silver Springs, Fl.
Car Model:
Not necessarily previous owners fault. At one time Clifford was selling cam kits, with hydraulic cams, and solid valve train. He wouldn't listen to any one that told him it wouldn't work.

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Charrlie_S
65 Valiant 100 2dr post 170 turbo
66 Valiant Signet 170 nitrous
64 Valiant Signet
64 Valiant 4dr 170
64 Valiant 4dr 225


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 Post subject: Re: 264 cam
PostPosted: Fri Aug 03, 2018 10:03 am 
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Guru
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Joined: Sat Oct 12, 2002 11:22 am
Posts: 3740
Location: Sonoma, Calif.
Car Model: Many Darts and a Dacuda
FYI...
If it is a hydraulic lobe profile, then .006 to .008 is the approximate amount of mechanical valve lash it will take before getting noisy.
( I have seen and "worked-out" this issue before...)

A tightly lashed solid lifter hydro cam will perform like a "bigger" cam when you set the lash that "tight" so the engine will need more compression to get anywhere close to making good power.

Short term: Experiment with tighter valve lash setting but plan on changing out the cam because lash settings that tight does not allow enough clearance for exhaust valve expansion rates and "on the seat" valve cooling time.
DD


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 Post subject: Re: 264 cam
PostPosted: Fri Aug 03, 2018 8:04 pm 
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Turbo EFI
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Joined: Mon Aug 02, 2010 7:36 am
Posts: 1200
Location: Rome, GA
Car Model: 1963 Dart 270, 1980 D150
If you run hydro lifters with the hydro cam the adjustable rockers should be fine. Other engines use the same adjustable rockers on both hydro and solid cams.

_________________
“Buy the ticket, take the ride.”
― Hunter S. Thompson


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 Post subject: Re: 264 cam
PostPosted: Fri Aug 03, 2018 9:07 pm 
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Supercharged

Joined: Thu May 12, 2005 11:50 pm
Posts: 6291
Location: So California
Car Model: 64 Plymouth Valiant
The oiling for hydraulic tappets on a slant is backwards from other engines.

Oil flows from the rear cam bearing, to the rocker shaft to the rocker arms, then down the pushrods to the tappets.

Adjustable rocker arms won't work if you want the hydraulic feature.

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Ed
64 Valiant 225 / 904 / 42:1 manual steering / 9" drum brakes

8)


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 Post subject: Re: 264 cam
PostPosted: Sat Aug 04, 2018 6:20 pm 
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Turbo EFI
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Joined: Mon Aug 02, 2010 7:36 am
Posts: 1200
Location: Rome, GA
Car Model: 1963 Dart 270, 1980 D150
Quote:
The oiling for hydraulic tappets on a slant is backwards from other engines.

Oil flows from the rear cam bearing, to the rocker shaft to the rocker arms, then down the pushrods to the tappets.

Adjustable rocker arms won't work if you want the hydraulic feature.
Thanks. I understand now.

_________________
“Buy the ticket, take the ride.”
― Hunter S. Thompson


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