FAST on 5.3?
06-08-2008, 07:38 PM
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FAST on 5.3? i have a 2000 silverado 5.3 and know that it is in an lsx based engine and was wondering if i can bolt basically most ls1 parts on it such as heads, cam, etc. on it. the one thing i would like to change would be to put a fast intake/tb combo. so i guess my question is can you do this and do you have to change anything if this is possible. thanks guys
06-08-2008, 07:52 PM
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from what i have read you might want to get heads/cam first. i dont think it would do anything for a stock motor. but i am 95% sure it will bolt up. maybe the 78mm will work good on a stock 5.3?
06-08-2008, 07:56 PM
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yea i've been looking in the head/cam swap first cause the fast would prolly do no good on a stock setup. so does anyone have any kind of suggestions on what kind of head/cam would be good on a 5.3, i seen a set of afr heads on here for sale that were at a good price just don't really know what kind of cam to put and whether i have to change rocker arms, lifters, pushrods, etc. my moter has 115k miles on it and i'm just going to start using it as a weekend/play vehicle cause i just can't afford to drive it all the time and want something to have fun with
06-08-2008, 08:05 PM
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well my plan is to leave it n/a cause i really don't want to spend the money forging the roatating assemble to make it anything but n/a. speaking of that how much hp can a stock bottom end on a 5.3 handle. i'm just looking to have a truck with a lot of power to have fun with.
06-08-2008, 08:18 PM
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well that answers that question, i have nothing to worry about on the bottom end. so do you think if i get a good head/cam combo i will be able to run the fast 90/90 or should i go with the 78. and if anybody has any suggestions on which cam/head feel free to throw them out there
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06-09-2008, 06:21 AM
#8
As stated before, the FAST will need a healthy top end to see decent results on a 5.3L
And keep in mind that if you switch over to an LS6 or FAST intake, you will need to get an F-body accessory drive setup. The intakes will not clear a truck accessory drive.
And keep in mind that if you switch over to an LS6 or FAST intake, you will need to get an F-body accessory drive setup. The intakes will not clear a truck accessory drive.
06-09-2008, 05:23 PM
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so how do i go about getting one of those, go to a junkyard or something and pull one off or can you get them somwhere?
06-09-2008, 05:45 PM
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A Friend Of Mine Did P/p Heads 706 Casting And A 220/220 Cam With A Fast, On A 2005 Chevy 1500 With A 5.3 A Put Down 400+ To The Wheels And Ran 12.2x@109 Miles
06-09-2008, 06:09 PM
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damn...i'm getting excited about doing this now. so is a head/cam swap hard to do on one of these motors. i'm only 20 and don't know if i want to take on this task i mean i have worked on motors before but they were all older and not sure if i want to risk messing something this expensive up. and i live in west virginia and there isn't really many motor places around here
