Any "better" year 5.3's for FI?
12-01-2011, 03:23 PM
#1
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Any "better" year 5.3's for FI? Just wondering if there are any advantages to using a certain year 5.3 for FI. Does it matter at all i.e. better heads/rods/pistons over a different year? Or are they pretty much all the same?
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12-01-2011, 04:42 PM
#2
The 04+ ones are probably better due to the rods. I'm not exactly sure when they changed them but I think late 04. I'm using a gen3 block with the gen 4(floating pin) rods and pistons. Mines a 4.8 though.
12-03-2011, 07:14 AM
#4
another thing to add would be that the 07+ 5.3s come with 799/243 heads and that would make them a bettter engine. The fastest stock shortblock car has an aluminum 5.3(l33)with 799/243 heads and has run 8.65@167iirc.
I dont think you will have a problem with any 5.3 you decide to go with. As long as you get a healthy engine and have a spot on tune it should do fine.
Im building a stock shortblock 4.8 setup and plan on making 650whp on pump gas and 750ish on race gas. Unless i decide to go with e85 then probably closer to the 750 all the time.
I dont think you will have a problem with any 5.3 you decide to go with. As long as you get a healthy engine and have a spot on tune it should do fine.
Im building a stock shortblock 4.8 setup and plan on making 650whp on pump gas and 750ish on race gas. Unless i decide to go with e85 then probably closer to the 750 all the time.
12-04-2011, 08:43 PM
#7
cant go wrong with the 2005 l33 motor, flat top pistons, 10.1 compression, ls6 heads....ls2 timing chain, has the bosses for the timing damper also, and has a special cam..
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12-04-2011, 10:31 PM
#8
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At 10:1 compression will you have to swap to a larger combustion chamber head to lower the compression before going turbo? I thought the iron 5.3L had 9.5:1 or 9:1 compression ratios.
12-05-2011, 09:43 AM
#12
Nope not the one in Cambridge, I have a friend who works at a yard down here so I was able to go in and pull the valve covers and take a look at it first.
Picked up the complete L33, set of coils, two truck harnesses, starter, and a pcm for a great price.
Picked up the complete L33, set of coils, two truck harnesses, starter, and a pcm for a great price.
12-05-2011, 09:52 AM
#13
12-05-2011, 09:54 AM
#14
Yes, hoping to drop 150lbs and pick up 100rwhp. It ran 10.45 with the 6.0 setup that was under turbo'd. This should get me in the 9's with a very budget friendly combo. The Nova is my advertising so thats the reasoning for the budget setup this time, lots of guys looking to do similiar builds but cant spend $4000 on a shortblock.
