Re: Will a 545 lift cam work in a stock 69 440
[Re: Mopar Ron]
#2805046
08/04/20 02:57 PM
08/04/20 02:57 PM
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Joined: May 2011
Posts: 4,489
northern,Ohio,USA
Clanton
master
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master
Joined: May 2011
Posts: 4,489
northern,Ohio,USA
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Hi guys it’s been awhile since I last posted but I have a question
I have a bone stock 69 440 that I want to put a comp cam in
And I wanted to know if you think it will fit with out hitting valves to pistons
The cam is 545 lift with 285 297 duration
The pistons are .034 down in the hole.
And fel pro gaskets
I will be running stock Eddy rpm heads.
What do you think can I run this cam in a stock
440
Thanks in advance. I am going to say no but the LSA could be wide enough at about 14.you can check easy by pushing on the valve and measure the stop distance.
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Re: Will a 545 lift cam work in a stock 69 440
[Re: Clanton]
#2805107
08/04/20 04:32 PM
08/04/20 04:32 PM
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Joined: Jun 2003
Posts: 52,972
Romeo MI
MR_P_BODY
Master
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Master
Joined: Jun 2003
Posts: 52,972
Romeo MI
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Measure the lift on the cam thats in it .. that should tell you how much more lift you can go.. dont ever assume.. it will bite you 
Last edited by MR_P_BODY; 08/04/20 04:34 PM.
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Re: Will a 545 lift cam work in a stock 69 440
[Re: lewtot184]
#2805125
08/04/20 05:29 PM
08/04/20 05:29 PM
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Joined: Feb 2005
Posts: 4,313
Prospect, PA
BSB67
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master
Joined: Feb 2005
Posts: 4,313
Prospect, PA
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there should be enough retainer to seal clearance, but with bigger valves, tighter LSA, lot more lift than stock you could be in real trouble with the intake valve chasing the piston. I think someone in past discussions said that between the bigger valves, thick margins and seat location that the valves are set closer to the deck surface in the Eddys verses factory original.
Last edited by BSB67; 08/04/20 05:30 PM.
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Re: Will a 545 lift cam work in a stock 69 440
[Re: Mopar Ron]
#2805127
08/04/20 05:34 PM
08/04/20 05:34 PM
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Joined: Feb 2005
Posts: 4,313
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,313
Prospect, PA
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Hi guys it’s been awhile since I last posted but I have a question
I have a bone stock 69 440 that I want to put a comp cam in
And I wanted to know if you think it will fit with out hitting valves to pistons
The cam is 545 lift with 285 297 duration
The pistons are .034 down in the hole.
And fel pro gaskets
I will be running stock Eddy rpm heads.
What do you think can I run this cam in a stock
440
Thanks in advance. No piston valve reliefs? Interesting piston to deck distance for a stock 440.
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Re: Will a 545 lift cam work in a stock 69 440
[Re: BSB67]
#2805141
08/04/20 06:17 PM
08/04/20 06:17 PM
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Joined: Jun 2008
Posts: 3,916
usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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there should be enough retainer to seal clearance, but with bigger valves, tighter LSA, lot more lift than stock you could be in real trouble with the intake valve chasing the piston. I think someone in past discussions said that between the bigger valves, thick margins and seat location that the valves are set closer to the deck surface in the Eddys verses factory original. could be. larger than stock valves should decrease piston to valve clearance a little. the eddy's i'm using have plenty of retainer to seal clearance. piston being .034" in the hole is a little odd. the true rocker ratio will have a big effect on a hydraulic cam. rockers should be checked for ratio. shelf push rods wouldn't work with the edelbrock heads i'm using and this needs to be checked.
Last edited by lewtot184; 08/05/20 10:58 AM.
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Re: Will a 545 lift cam work in a stock 69 440
[Re: Mopar Ron]
#2805872
08/06/20 05:28 PM
08/06/20 05:28 PM
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Joined: Aug 2006
Posts: 2,141
junction city oregon
viperblue72
top fuel
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top fuel
Joined: Aug 2006
Posts: 2,141
junction city oregon
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My feeling is that you’re not going to get the answer you want because you’re right in “maybe maybe not” territory.
If this was my motor and I haven’t ordered the cam yet, I’d be ordering the xe284 instead of the xe285hl just to make sure it clears.
The power difference is likely minimal.
Last edited by viperblue72; 08/06/20 05:31 PM.
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Re: Will a 545 lift cam work in a stock 69 440
[Re: viperblue72]
#2805903
08/06/20 07:52 PM
08/06/20 07:52 PM
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Joined: Jun 2008
Posts: 3,916
usa
lewtot184
master
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master
Joined: Jun 2008
Posts: 3,916
usa
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My feeling is that you’re not going to get the answer you want because you’re right in “maybe maybe not” territory.
If this was my motor and I haven’t ordered the cam yet, I’d be ordering the xe284 instead of the xe285hl just to make sure it clears.
The power difference is likely minimal. I've thought the same thing about xe284 vs 285hl. I feel very confident that the OP will get into enough problems with the 284, especially with aftermarket rockers, than going for broke with the 285.
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Re: Will a 545 lift cam work in a stock 69 440
[Re: Mopar Ron]
#2805979
08/06/20 10:54 PM
08/06/20 10:54 PM
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Joined: Aug 2003
Posts: 43,174
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,174
Bend,OR USA
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The rocker arms can make the differences in that cam working or not, I've seen after market race ductile iron rocker arms vary in the ratio from 1.42 to 1.53 on 1.5 ratio rockers  Stock Mopar ductile iron Hemi rocker vary a bunch more than the older ductile iron Max wedge rocker did  IHTHs 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Will a 545 lift cam work in a stock 69 440
[Re: MoonshineMattK]
#2807283
08/10/20 01:46 PM
08/10/20 01:46 PM
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Joined: Jan 2003
Posts: 7,992
Escondido, CA. Ron Podsiadly,...
Mopar Ron
OP
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OP
master
Joined: Jan 2003
Posts: 7,992
Escondido, CA. Ron Podsiadly,...
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Do you know what the compression ratio will be? Might not want that much cam unless its got a high stall or a 4spd It’s a bone stock 69 440. It should be 10 to 1 but with the pistons down.034 in the hole I don’t know. And it will have a 3000 stall converter and 4.10 gears.
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