What Cam, 454 w/wieand 177
02-23-2003, 05:25 PM
#1
What Cam, 454 w/wieand 177
I have stock 1997 454 Mag carb. I am working on a deal for the blowers and carbs from a pair of Merc 525sc's. Wieand 177's and Holley Dominator 1050's. I am planning on installing inconnel exhaust and stainless intake valves, 525 head gaskets and intake gaskets. With the stock cam and "forced induction" exhaust (no options allowed with blowers) Desktop dyno is predicting 527hp@6000. I am considering changing the cams. I would like to use the stock roller lifters with the new cams. Any recommendations? Is it worth the expense? I will be running stock exhaust for a while. Besides valves,gaskets,t-stat housing, and exhaust, any recommendations for other parts that should be changed?
I was thinking perhaps better cams would offset the power loss of stock exhaust. Stock 525 cams used flat tappet lifters, I want to stay roller.
I was thinking perhaps better cams would offset the power loss of stock exhaust. Stock 525 cams used flat tappet lifters, I want to stay roller.
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02-23-2003, 05:48 PM
#2
Registered
Check with the guys at 800-448-1223 for Ferrea Super Alloy valves. Stock roller lifters are only good to .335 lobe lift with standard base circle. 0.335 x 1.7=.5695 lift on your cam. Check out the Comp Cam website, they have several cams below that lift for stock lifters. See 01-418-8 XR282HR.
02-23-2003, 07:09 PM
#3
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Charter Member
http://www.cranecams.com/master/apps/chevy47.htm
Go4Broke, try this site. I found it while looking for specs on the blower and carb for the 525SC.
Thanks for answering the question on the other thread.
Go4Broke, try this site. I found it while looking for specs on the blower and carb for the 525SC.
Thanks for answering the question on the other thread.
02-24-2003, 01:17 PM
#8
To avoid any confusion...
The actual entire part number on the Crane "741" cam as it is being refered to is; 139741 .... And yes it is a very good cam! I have duration specs almost exactly to the "T" with my Crower cams in my 540's engines only mine are on 114* lobe seps.
02-24-2003, 04:09 PM
#10
Re: To avoid any confusion...
Originally posted by KAAMA
The actual entire part number on the Crane "741" cam as it is being refered to is; 139741 .... And yes it is a very good cam! I have duration specs almost exactly to the "T" with my Crower cams in my 540's engines only mine are on 114* lobe seps.
The actual entire part number on the Crane "741" cam as it is being refered to is; 139741 .... And yes it is a very good cam! I have duration specs almost exactly to the "T" with my Crower cams in my 540's engines only mine are on 114* lobe seps.
I tend to agree with Bobby on this one. I would go with the 731 on a 454. I was only listing the correct cam # in question, and not my opinion, but since Bobby brought it up 1st..........
Jerry
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Some people are like Slinkies - Not really good for anything, but they
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Some people are like Slinkies - Not really good for anything, but they
bring a smile to your face when pushed down the stairs.
Last edited by US1 Fountain; 02-24-2003 at 04:12 PM.
