Install a car intake on a Vortec 4.8L, 5.3L, 6.0L engine

[retrolsx]

http://www.ls1truck.com/forums/front...take-swap.html

here is a great write up on the swap and the adapter brackets for the idler pulley are available from

www.KwikPerf.com

and

Speartech.com

[Scatillac]

Here are some photos of an LS6 manifold installed on my 02 Silverado using the 07 L92 water pump and top hose.

There is no idler bracket as the idler was mounted on a longer bolt instead. The belt clearance is ~3/8" with this setup.

I still have to rework my intake tube. Routing will depend on the cooling fan system that I decide to use. It will be much cleaner if I use a stock electric setup.

I've got some more photos of this setup and will post them later.

[retrolsx]

Can you send me a CD of as many pics of the swap and what you had to do to make it work? I could really use this info for the book im doing.

[retrolsx]

Or shoot me a email to RetroLSX@comcast.net

[Scatillac]

The photos attached show a mock-up motor with the 06-up Gen 4 truck water pump (GM PN 12600767) and an LS2 intake.

This pump will not allow the use of an LS2/3/7 90mm DBW TB unless you use a ~46-48 mm spacer due to the location of the stepping motor location on the TB. All is not lost, though.

With an LS2/3/7 intake, a Nick Williams 90 mm cable TB will clear with a small spacer and some minor relief grinding on the pump body. A Nick Williams 90 mm DBW TB will clear with no issues since it uses the stepping motor assembly form an LS1/6, which mounts on the side opposite the water outlet.

This pump also works with an LS1 or LS6 intake with a stock cable TB or a DBW TB from a CTS-V or Corvette. With both of these manifolds, you also have provisions for mounting a throttle/cruise control cable bracket.

When installed on a truck using the idler/long-bolt method instead of a bracket to relocate the idler, an NAPA #060990 belt is used. The top radiator hose for the large (6.0L) radiator is GM PN 19130027.

If you have a truck with a return line, the '97 Corvette LS1 fuel rails work nicely on the LS1/6 manifolds. If your truck has a return line system and you have an LS2/3/7 manifold, you have to change to the later (return in tank) system or install a regulator w/return in your line.

I've also added a photo showing the belt clearance with the idler/long-bolt method. It's hard to tell in the photo, but there's about 3/8" or so.

[Sweetmonty]

What intakes are people using when running L92 square bore heads? I assume all car intakes will not work. Are there aftermarket options?

[Scatillac]

There are 3 factory intakes that fit the L92 heads, the L76, the LS3/L99 and the L92 truck intake. The L76 is no longer in production.

The only aftermarket intake (other than custom-fabbed aluminum or ITB stuff) is from FAST, part number 146102.

FAST also offers a cathedral port truck intake, but so far, they don't have the L92 version available.

If being installed on a truck, the same requirements outlined in the previous paragraphs still apply.It's basically the same for all of the car intakes.

[retrolsx]

Great info do you have a photo of the TB clearing the waterpump?

[biggeazy]

edit ........

[biggeazy]

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