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Another Old Cam Question #2730871
01/07/20 05:46 PM
01/07/20 05:46 PM
Joined: Aug 2019
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Super Spudsville
Mr PotatoHead Offline OP
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Mr PotatoHead  Offline OP
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A small block cam here, solid lifter.

What can you glean from the specs here to as what application it might fit.

TIA.

sss.jpg

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Re: Another Old Cam Question [Re: Mr PotatoHead] #2730889
01/07/20 06:59 PM
01/07/20 06:59 PM
Joined: Jan 2003
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So. Burlington, Vt.
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fast68plymouth Offline
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@.050=244/254
Lsa = 106+4

Mid-range Low lift oval track/bracket race cam.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Another Old Cam Question [Re: Mr PotatoHead] #2730890
01/07/20 07:01 PM
01/07/20 07:01 PM
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usa
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lewtot184 Offline
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older profile. should idle rough. I wouldn't be afraid to try it. knowing at what lobe lift the advertised numbers are would be a help.

Last edited by lewtot184; 01/07/20 07:02 PM.
Re: Another Old Cam Question [Re: lewtot184] #2730894
01/07/20 07:27 PM
01/07/20 07:27 PM
Joined: Oct 2003
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KY USA
mopargem Offline
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Looks like a 3/4 race cam drumhit grin

Re: Another Old Cam Question [Re: lewtot184] #2730896
01/07/20 07:36 PM
01/07/20 07:36 PM
Joined: Jan 2003
Posts: 14,492
So. Burlington, Vt.
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fast68plymouth Offline
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Originally Posted by lewtot184
older profile. should idle rough. I wouldn't be afraid to try it. knowing at what lobe lift the advertised numbers are would be a help.


I think that would be known if that glare wasn’t in the pic.

Edit..... I believe the SAE method for determining duration on solid lifter cams is; lash point (at the cam/lifter), +.004”.
Since the lash is shown as .022...... divide by RR(1.5) for lash point at the lifter(.01466)....... then add in the .004.... and it’s .01866”...... so, duration @.01866.
For that particular cam......it’s pretty close to the .020” many cam grinders currently use.

Edit #2- actually...... it’s not lash +.004”....... it’s lash +.006” lift at the valve.

So, that is lash point at the cam +.004...... If.... you’re figuring it with 1.5 rockers.
But for engine families that use different rocker ratios it would be a different number.
It’s .006” divided by the RR.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads
Re: Another Old Cam Question [Re: fast68plymouth] #2730907
01/07/20 08:27 PM
01/07/20 08:27 PM
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Posts: 793
massachusetts U.S.A.
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1969ronnie Offline
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1969ronnie  Offline
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Looks like a Ashley Graham 3/4 race cam . drive

Re: Another Old Cam Question [Re: 1969ronnie] #2731369
01/09/20 11:12 AM
01/09/20 11:12 AM
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Mr PotatoHead Offline OP
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Mr PotatoHead  Offline OP
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As usual, THANKS GUYS!

Ive about 5 track dates planned this year and am gonna play each time with a old school cam the time a modern comp just to see what pops. Thats the beauty of slow brackets, just be consistent so I dont care what the slips say to a point, just want to compare.


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Re: Another Old Cam Question [Re: Mr PotatoHead] #2731598
01/09/20 10:18 PM
01/09/20 10:18 PM
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God's Country Maryland
GODSCOUNTRY340 Offline
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Just a little heads up, with 299 degrees duration you're going to need pistons with valve reliefs. Usually anything over 290 degrees need reliefs.


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