murlyn403

could any one tell me which manifold I need to go from 5.3 truck engine to car manifold and still use my throttle body thanks q

murlyn403

vary good article. /do you know if this manifold will fit a 2008 5.3 engine or what manifold would fit? thanks murlyn

murlyn403

hey good info.. could you tell me if this manifold set up will work on a 2008 5.3 engine or what manifold may work thanks murlyn

-TheBandit-

iTrader: (1)

Does your '08 5.3 have rectangular intake ports on the heads? I suspect it would. If so, the tech here would also apply to your engine.

twin74s

iTrader: (10)

which manifold makes the most power? Anyone have any dyno numbers to show any?

nycblazer

Here's what I did with my LS3 engine using truck asscessories with a LS3 water pump in order for me to use the LS3 throttle body.
I had a custom made 1 1/2 inch LS water pump spacer so the LS3 Corvette water pump could line up with the truck accessories..

Schwanke Engines

iTrader: (1)

Either the LS2 or the LS1/6 style manifolds would work with your combo. I am fairly certain you have a 4 bolt manifold at which point you would be needing the LS2 intake. Give me a call if you need one, we have a few of them on the shelf right now.

elevatedGTO

in the title it mentions l99 ,but there has been no coment on it. im gathering it the same as the ls3 intake -correct

-TheBandit-

iTrader: (1)

Here is how I relocated the idler pulley and made the truck accessories work with the LS3 intake for under $10. Granted I do still need to buy a belt, but I'm also thinking about scrapping this altogether and making my own brackets from scratch. I don't like how high the alternator sits with this setup.

First off the parts. From Misumi USA (www.misumiusa.com), the spacer is PN KNCLM10-30-20 and cost $5.70. It is nickel plated steel, 10mm ID, 30MM OD and 20MM length. The bolt is PN CB10-160 and cost $2.40. It is M10x160mm length. Total $8.10.



Here you can see that the spacer is the appropriate height to position the idler in line with where it originally was



I am spoiled with a mill in my garage, so I used it to cleanly trim down the bracket. You could also do this with a vertical bandsaw or even a hacksaw.







Here is the trimmed bracket around the throttle body



And here you can see a notch I added for the vacuum port on the drivers side of the intake



Here is the ilder pulley mounted with a ratchet strap used as a mockup belt



The Misumi spacer installs here:



And this is what the finished accessory drive looks like using a ratchet strap to mockup the belt path.



Sorry about the black & white pictures. Somehow the setting got changed while I was taking pictures.

LS1MonteSS

iTrader: (1)

Clint,

That was awesome and I was thinking of something along the same lines... Question though... I know the spacer was only $5.70, but with your mill couldn't you have drilled out the threads from the ilder pulley mount and mill that down for your spacer?

I really like how your ALT mount came out though, really clean!

Kevin

-TheBandit-

iTrader: (1)

Kevin - Thanks for the comment! I certainly could have made the spacer on the mill, but making it from the old piece didn't cross my mind. For the cost of material, I figured I may as well buy it already machined from Misumi. I have been using them for years on my automation projects (I'm a mechanical engineer), so it was just a gut reaction to use them for this. I honestly don't think it would have been worth my time to cut it either from fresh material or the bracket.

Here are some more pictures of this in a complete form. I may be selling these parts off though as I want to go to an L99 accessory drive.

ChucksZ06

iTrader: (9)

That is cool. I did almost the same mod on my 68 camaro as I had hood clearance but the bottom mount alternator was not workable. I did not do the idler pulley and it works fine on an 02 ls6 engine. What engine is that water pump off of? My belt hangs over my car water pump pulley a little but it has not been a problem.

-TheBandit-

iTrader: (1)

The waterpump shown is from an '07 LY6. The same pump is used on the L92 and probably other gen IV truck motors. I may be selling it along with the modified accessory bracket if you're interested. I am likely going to an L99 FEAD.

Beaflag VonRathburg

iTrader: (176)

I'm saving that information on the dirty dingo mount.

-TheBandit-

iTrader: (1)

Did you see the idler spacer I used for about $10? I don't see why it wouldn't work just as well.

Beaflag VonRathburg

iTrader: (176)

Yes, I did. For an extra $20 though I'll save myself the effort of trying to cut a giant piece of aluminum with a hack saw, time, sweat, bug bites, and the potential of breaking a saw blade. If I had a mill I'd throw it in there and be done.

-TheBandit-

iTrader: (1)

I hate to break it to you, but you're going to have to cut the accessory bracket down whether you use the $10 spacer or the $30 dingo setup. Trimming down the bracket has nothing to do with relocating the idler. It has to be done in order to clear the throttle body. You don't have to do it the way I did with the mill - there are easier ways and even a hacksaw will do the trick. You don't even have to trim as much as I did - I just wanted it to look clean.

futureuser

iTrader: (1)

This is the map in my LY6 intake:





same map in ls3 intake:









This is a 2009 LY6 map and it appears to be the same as a LS3 map.

-TheBandit-

iTrader: (1)

Good info futureuser. Looks like they eventually incorporated the new style of screw down MAP into these. If you have an extra screw-down style, I maybe be interested.

briancb1

What type of screw does it need? I just purchased an LS3 manifold and LS3 MAP sensor, but it didn't come with the hold down screw, what size/length is it?

Thanks