BIG 408 Cam Selection Help (Come in)
09-12-2008, 10:26 AM
#1
Staging Lane
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BIG 408 Cam Selection Help (Come in) I am considering building a 408. What size cams are you guys using for a nice rough idle and good top end power.
Hope to use 235TFS heads and 1-7/8 headers and maybe fast 92/92 or vict. jr. This is a daily driven car but I want to go big on the cam.
This motor will be built around 9.0 compression as it will be a FI motor later.(Yes I will change the cam at that point)
Hope to use 235TFS heads and 1-7/8 headers and maybe fast 92/92 or vict. jr. This is a daily driven car but I want to go big on the cam.
This motor will be built around 9.0 compression as it will be a FI motor later.(Yes I will change the cam at that point)
09-12-2008, 06:27 PM
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with those heads you can run plenty of cam...something like that 248/252 should be ok. talk to one of the sponsors such as 99blancoss. he works with HKE and they build tons of 408 and can certainly get you the cam you are looking for.
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09-13-2008, 10:43 AM
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Isnt a trex cam like in the 220's? Thats way too small IMO, 248/25x would be the smallest id go, the 257/266 sounds interestig....
I have a 232/234 in my 346 and i want it to act bigger with 62 more CI
I have a 232/234 in my 346 and i want it to act bigger with 62 more CI
09-13-2008, 11:13 AM
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Trex- 244/248 - .612/.615 - 112 lsa
Stroker, my bad its a TR cam as well there are multiple specs you can get-
244/248 - .612/.615 - 112 lsa
248/254 - .615/.623 - 110 lsa
248/254 - .615/.623 - 112 lsa
OR
TSP Texas Giant Camshaft
248/254, .611"/.613" Camshaft With Your Choice of Lobe Seperation.
Those might be a bit mild in a 408, but should provide stump pulling torque.
Stroker, my bad its a TR cam as well there are multiple specs you can get-
244/248 - .612/.615 - 112 lsa
248/254 - .615/.623 - 110 lsa
248/254 - .615/.623 - 112 lsa
OR
TSP Texas Giant Camshaft
248/254, .611"/.613" Camshaft With Your Choice of Lobe Seperation.
Those might be a bit mild in a 408, but should provide stump pulling torque.
09-14-2008, 02:03 AM
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this is an old vid of the car. it was just on the dyno for some misfireing issues no numbers. also this was with my 6 liter heads and a little lower compression than i have now 
let me know what ya think. oh this was with my true duals now im back to stock catback
http://videos.streetfire.net/video/4...-ta_146518.htm
let me know what ya think. oh this was with my true duals now im back to stock catbackhttp://videos.streetfire.net/video/4...-ta_146518.htm
09-14-2008, 09:20 AM
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Trex- 244/248 - .612/.615 - 112 lsa
Stroker, my bad its a TR cam as well there are multiple specs you can get-
244/248 - .612/.615 - 112 lsa
248/254 - .615/.623 - 110 lsa
248/254 - .615/.623 - 112 lsa
OR
TSP Texas Giant Camshaft
248/254, .611"/.613" Camshaft With Your Choice of Lobe Seperation.
Those might be a bit mild in a 408, but should provide stump pulling torque.
Stroker, my bad its a TR cam as well there are multiple specs you can get-
244/248 - .612/.615 - 112 lsa
248/254 - .615/.623 - 110 lsa
248/254 - .615/.623 - 112 lsa
OR
TSP Texas Giant Camshaft
248/254, .611"/.613" Camshaft With Your Choice of Lobe Seperation.
Those might be a bit mild in a 408, but should provide stump pulling torque.
09-14-2008, 12:27 PM
#13
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I am running a custom cam sale right now where you can spec out your cam any way you want.
https://ls1tech.com/forums/generation-iii-internal-engine/983272-brand-new-custom-cam-sale-355-shipped.html
also might want to ask Patrick G his opinion as he specs out cams
https://ls1tech.com/forums/generation-iii-internal-engine/983272-brand-new-custom-cam-sale-355-shipped.html
also might want to ask Patrick G his opinion as he specs out cams
10-10-2008, 10:46 AM
#14
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This sounds huge! What do all you other guys think of something this big? The lift is huge also wow.
I heard a tsp giant cam in person, and it sounds pretty nice. I may want to step up into the 25x/25x range. But this one is really big.
I at this point wont go smaller than 248/254.
I heard a tsp giant cam in person, and it sounds pretty nice. I may want to step up into the 25x/25x range. But this one is really big.
I at this point wont go smaller than 248/254.
02-21-2011, 03:42 AM
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Im not really sure why folks continue to post questions like this. The best thing anyone can do when they are building a motor is have a cam specd for there application. This is the only way you will get the most out of what you are looking for. Congrates on the build and good luck..
