5.3 Combo help....

[nicke]

Guys change of plans here. Instead of the 5.3, I made a last second decision to switch and get an L92 (with VVT), with really low miles out of an 07 Denali. I have read a ton of stuff on the DOD/AFM features and how people delete or disable these when putting in a performance cam.
I dont plan to go this route, and plan to put the engine in as is, using all the original accessories.

I see that I will run into an issue when I change the oil pan over to the holley one, as they don't recommend using the stock, high flow oil pump with this pan. Is this still correct?
Can someone shed some light on this for me? Is there anything else I need to know about getting a harness put together for this setup?

I'll probably start a new thread looking for help specific to the L92.

Thanks!

[67rally]

Guys change of plans here. Instead of the 5.3, I made a last second decision to switch and get an L92 (with VVT), with really low miles out of an 07 Denali. I have read a ton of stuff on the DOD/AFM features and how people delete or disable these when putting in a performance cam.
I dont plan to go this route, and plan to put the engine in as is, using all the original accessories.

I see that I will run into an issue when I change the oil pan over to the holley one, as they don't recommend using the stock, high flow oil pump with this pan. Is this still correct?
Can someone shed some light on this for me? Is there anything else I need to know about getting a harness put together for this setup?

I'll probably start a new thread looking for help specific to the L92.

Thanks!

Check out PSI Conversions for your harness, they make one for just about every application, and they respond quickly to emails and phone calls. Here's a link to the 58x Vortec harnesses:
http://secure.ultracart.com/catalog/...Harnesses-58x/

You'd probably need HAR-1039 (T56) or HAR-1040 (4L60E), but they will steer you in the right direction.

[Poncho72]

iv'e been looking for an answer to the whole LS1/6 intake swap-over compatibility and what works/won't work for a while. Thanks a lot Garys 68, post #15 cleared a lot of fog for me.

[67FirebirdKiller]

I just wanted to add one more thing to this. The OP mentioned an 2002 5.3, I recommend using 03+ truck engines since 03 and newer used the stronger LS2 rods from the factory where as the 99-02 used weaker rods. It's alittle extra insurance when getting high HP/TQ from these engines and if boosting the engine as well. Just my .02

[jwcarguy]

I just wanted to add one more thing to this. The OP mentioned an 2002 5.3, I recommend using 03+ truck engines since 03 and newer used the stronger LS2 rods from the factory where as the 99-02 used weaker rods. It's alittle extra insurance when getting high HP/TQ from these engines and if boosting the engine as well. Just my .02

FYI it is the 05'-up engines with the heavier duty floating wrist pin connecting rods, like what came in the LQ9 / LS2 engine, that is why 04' was that last year for the " LQ4 "

[67FirebirdKiller]

FYI it is the 05'-up engines with the heavier duty floating wrist pin connecting rods, like what came in the LQ9 / LS2 engine, that is why 04' was that last year for the " LQ4 "

You're right my mistake, the differences between the years were:

03+ all went to drive by wire
05+ got better heads, connecting rods, and flat tops
07+ got bigger intake manifolds + 87 mm TB (or larger)

It had been awile since I looked up the differences, sorry about that.