408 Hp
11-05-2008, 09:16 AM
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408 Hp
Im building a 408 with 11.1 cr and .566 / .568 cam wondering what to expect for HP and what you guys with one are putting out or running in the 1/4.
11-05-2008, 10:20 AM
#2
Can you be a little more specific on your motor specs??? Cam duration, heads (ported), intake, headers etc.
My N/A 408 was able to hit 613HP on the engine dyno with a base tune. I expect after some wear-in and tuning, 625-650 isn't out of the question. I really wanted to see where the power was made rather than peak numbers and to break in the motor in a WOT situation. I am happy with the results.
My N/A 408 was able to hit 613HP on the engine dyno with a base tune. I expect after some wear-in and tuning, 625-650 isn't out of the question. I really wanted to see where the power was made rather than peak numbers and to break in the motor in a WOT situation. I am happy with the results.
11-05-2008, 02:08 PM
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cam is 222/224 566/568 112 and 243 heads polished and mill to 64cc shorty headers, magnaflow y pipe. It,ll be N/A
Last edited by JDC; 11-05-2008 at 02:14 PM.
11-05-2008, 07:19 PM
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Can you be a little more specific on your motor specs??? Cam duration, heads (ported), intake, headers etc.
My N/A 408 was able to hit 613HP on the engine dyno with a base tune. I expect after some wear-in and tuning, 625-650 isn't out of the question. I really wanted to see where the power was made rather than peak numbers and to break in the motor in a WOT situation. I am happy with the results.
My N/A 408 was able to hit 613HP on the engine dyno with a base tune. I expect after some wear-in and tuning, 625-650 isn't out of the question. I really wanted to see where the power was made rather than peak numbers and to break in the motor in a WOT situation. I am happy with the results.
get a bigger stick for HP i mean thats a good stick for a 5.3 not a 6.6 or whatever it is!!!
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11-05-2008, 11:33 PM
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I think that will be a great cam for a daily driver 408. I've driven them with smaller cams than that. With that cam you should be able to make 450RWHP and have it drive nice. Just because it's a 408 doesn't mean it needs a big cam. Bigger flowing heads are more important than a bigger cam with the big cubes.
11-06-2008, 06:33 AM
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Thats what i though but couldnt remember for sure it was like 2 yrs ago the shop that did them couldnt find any # from when they did them. I thought that we went to the 5.3s 61.1 cc they took off .045. It will be a DD untill I can find a RCSB to put it in.