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Re: Largest Cam For Stock Springs
[Re: MoparMuscle]
#383514
07/22/09 08:42 PM
07/22/09 08:42 PM
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Joined: Nov 2008
Posts: 660 San Diego
formula S
mopar
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mopar
Joined: Nov 2008
Posts: 660
San Diego
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Quote:
I've still got a lot of deciding to do on the big motor for the Daytona. But I want to get it going so I can drive it around some now.
I have a 440 that I took out of a motorhome that only has 59,000 miles on it. I decided to pop it in there for now but I do want it to at least sound like it has something more than just bone stock.
I'm going to put an aluminum intake, Holley carb, aluminum valve covers and a chrome timing cover on it. Since I'll have the timing cover and valve covers off it will be easy to go ahead and change the cam.
I also have a set of Crane iron rockers so the cam could be solid or hydraulic. What do you think is the biggest I can get away with?
I also am thinking about using the converter out of the motorhome or should I leave the 8" in.
Better make sure their is enough room for the valve seal. I ran into this problem with a 484 cam with stock unmodified heads. The valve stem bosses had to be cut down, and if you go that far, you might as well change the springs to at least stock 440 magnum springs, wich is a single spring w/damper. Your motorhome springs are just a single spring no damper, and may not like that much lift, or rpm that cam will produce.
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Re: Largest Cam For Stock Springs
[Re: MoparforLife]
#383515
07/22/09 08:44 PM
07/22/09 08:44 PM
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Joined: Nov 2008
Posts: 660 San Diego
formula S
mopar
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mopar
Joined: Nov 2008
Posts: 660
San Diego
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Quote:
Gwet any more than that you better start doing some measuring. There is no cut and dried answer but each combo should be checked for sure. Maske sure to check the guide/seal to retainer clearance too, it needs to have the same free travel (IMO a very minimum of .060) at full valve lift as teh valve springs.
You beat me to it
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Re: Largest Cam For Stock Springs
[Re: solidcam]
#383517
07/22/09 09:45 PM
07/22/09 09:45 PM
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Joined: Jan 2003
Posts: 302 Northeast Texas
MoparMuscle
OP
enthusiast
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OP
enthusiast
Joined: Jan 2003
Posts: 302
Northeast Texas
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Yes, unfortunately it does have the rotators. Looks like I might as well pull the heads and change the springs and retainers. I have a small roller that sounds really sweet .555I .564E 244-254. I can't remember how far down in the hole the pistons are on the motorhome engine. What are the chances it will have enough piston to valve clearance?
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