bought a cam
Jul 19, 2006 | 09:53 PM
#1
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From: Alexandria, LA
bought a cam
i just bought greggo's cam today and was wondering how poor my little 4.8 will actually run with this cam. also i know i need some 918's and which pushrods do i need for this cam (the 7.4's), also how would a factory convertor work if it is restalled because i have heard that they are already heavy duty and really just need to be re-stalled.
Jul 19, 2006 | 10:05 PM
#4
what are the cam specs? some cams you can go with ls6 springs instead of the 918's if its a milder cam. the ls6 springs should be a lil cheaper. personally i wouldnt waste the time getting the factory converter restalled i would do it righ tthe first time and get a yank or fuddle,etc. i bought a trail blazer converter for 150$ and it stalls up to about 2600 rpm, but its not made for that, the extra torque and hp our motors produce compared to that of the 6cyl trailblazer causes the converter t ostall at that speed. but the aftermarket converters have furnaced braised fins,torrington bearings,etc. all the hd stuff you need to keep if from getting hot and performing properly. but my tb stall is still goin strong and a lot of people on here have them .im sure someone else will post.
Jul 19, 2006 | 10:06 PM
#5
Originally Posted by regency
i just bought greggo's cam today and was wondering how poor my little 4.8 will actually run with this cam. also i know i need some 918's and which pushrods do i need for this cam (the 7.4's), also how would a factory convertor work if it is restalled because i have heard that they are already heavy duty and really just need to be re-stalled.
Dude, you are going to need one hella big stall!
Jul 19, 2006 | 10:09 PM
#7
That is a monster cam for a 4.8l, the cam I just put in a 408 was a 233/239 .595/.603 on a 113lsa. That cam would require A LOT of tuning, 7.4 pushrods, I would go with dual springs, better rod bolts and it will need a lot more compression. You will also need AT LEAST a 3500-3800 converter. The cam is good for power up to about 6800-7000 rpms. In all honesty though that is just too much cam unless you raise your compression dramatically and do all the supporting work. I would look for someting in the lower 220's on duration and around 560-580 lift.