731-741 or 502/502 cam?
05-23-2005, 08:39 PM
#11
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Re: 731-741 or 502/502 cam?
go to www.cranecams.com
specs:
731 is 226/234 .587/.610" lift
741 is 234/242 .610/.632" lift
I'd suggest shooting for 5800 and running the 741 cam. Don't be afraid to turn some rpm!
For reference, a stock 500EFI cam is 230/236 .598/.610".
specs:
731 is 226/234 .587/.610" lift
741 is 234/242 .610/.632" lift
I'd suggest shooting for 5800 and running the 741 cam. Don't be afraid to turn some rpm!
For reference, a stock 500EFI cam is 230/236 .598/.610".
05-23-2005, 09:06 PM
#12
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Re: 731-741 or 502/502 cam?
Originally Posted by Pantera28-650HP
How would either of these cams work in a blower application. Lower boost 5 - 7 PSI?
Where are the spec cards for these cams?
I am in the search for a new cam for my motor also.
Not trying to steal your thread Migara422!!
Where are the spec cards for these cams?
I am in the search for a new cam for my motor also.
Not trying to steal your thread Migara422!!
Last edited by mikes280; 05-23-2005 at 09:16 PM.
05-23-2005, 09:23 PM
#13
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Re: 731-741 or 502/502 cam?
Are the 741 and 731 cams ground on the same LSA for blown and NA motors? For some reason I thought I saw they are available on 112 for NA and 114 for blower apps. Just curious and thought it may be good for these guys to know when shopping.
Craig
Craig
05-24-2005, 08:37 AM
#15
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Re: 731-741 or 502/502 cam?
I have all the take out valve train out of my 500efi. The 500 efi cam is real close to the 731 cam.I even have the valves and Crane rockers 
I put the 741 in my blower motor.It worked good with the blower.
If you are going to buy new ? Call [Bob] RMbuilder and have him design one for your aplication it will be real close to the same price . He just did one for a member on this board and it picked up 9 MPH!!!
I put the 741 in my blower motor.It worked good with the blower.
If you are going to buy new ? Call [Bob] RMbuilder and have him design one for your aplication it will be real close to the same price . He just did one for a member on this board and it picked up 9 MPH!!!
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05-24-2005, 05:59 PM
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Re: 731-741 or 502/502 cam?
I agree. the 741 for the blower is better. 731 for n/a. And to get all the torque, oval ports.
With the blower, rectangle ports and the 741. I have one in perfect condition if interested.
DAVE
With the blower, rectangle ports and the 741. I have one in perfect condition if interested.
DAVE
05-25-2005, 01:50 PM
#18
Re: 731-741 or 502/502 cam?
You will glad ya used him!!
[email protected]
http://www.offshoreonly.com/forums/m...poster&t=99919
Rob
[email protected]
http://www.offshoreonly.com/forums/m...poster&t=99919
Rob
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The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
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The Only Time You Have To Much Ammo Is When Your Swimming Or On Fire.
05-25-2005, 08:58 PM
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Re: 731-741 or 502/502 cam?
How do those cams compare to the 641?
Looks like the 741 is the replacement for the 641. I have been running the 641 for 5 years, no reversion problems.
Looks like the 741 is the replacement for the 641. I have been running the 641 for 5 years, no reversion problems.
Last edited by mr_velocity; 05-25-2005 at 09:03 PM.
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