5.3L To LS1 Swap?

[Johny_Vette]

Good Idea? Or should I just cam/ 243 Heads/ Springs?
Ls1's are running for 2300 with 4L60E Trans in L.A. (I'm in Chicago btw.)
Anyone know what needs to be done for the swap though?

 

[Gzes]

You know what would be super cool. If you went back in time to a 383 supercharged. Cheaper to build and is gonna be one of a kind

 

[Johny_Vette]

Lol I looked it up, Seems pretty cool but na lol I like fuel injection . But whats up though any info?

 

[Johny_Vette]

Cam Or Engine?

 

[hoe]

imo Engine... its no replacement for displacement. I would even try getting a 6.0, milling the heads, and then caming that... should still come up to be less cost. and IMO it can be made more powerful.

You have lots of researching to do... this should be a no brainier... what exactly do you want for your truck? and what is the budget?

 

[Colossus]

I would go w a 6.0L. Most used LS1 are high dollar and came out of a sports car so they have had the piss ran out of them. Plus 6.0L will be a direct replacement for the 5.3L. Meaning not having to change oil pan, intake or accessory's. You can just drop it in. You will just need a little tuning on the PCM. A stock 6.0L w no mods will give you about 100 more RWHp and 100+tq over a 5.3L/4.8L.
Now do heads and cam on that 6.0L and your looking in the 400hp range.

 

[redaddiction]

I'd go with either an ls1 or 6.0 depending on what you find for a good price. Don't worry you just need the long block everything else you have will transfer over.

Only thing about an ls1 is it is around 100lbs lighter. This will raise the front end of your truck a little bit.

---------- Post added at 01:01 PM ---------- Previous post was at 01:00 PM ----------

You know what would be super cool. If you went back in time to a 383 supercharged. Cheaper to build and is gonna be one of a kind

Not cheaper to build. Quit spreading misinformation on subjects you have no personal knowledge of.

---------- Post added at 01:02 PM ---------- Previous post was at 01:01 PM ----------

I would go w a 6.0L. Most used LS1 are high dollar and came out of a sports car so they have had the piss ran out of them. Plus 6.0L will be a direct replacement for the 5.3L. Meaning not having to change oil pan, intake or accessory's. You can just drop it in. You will just need a little tuning on the PCM. A stock 6.0L w no mods will give you about 100 more RWHp and 100+tq over a 5.3L/4.8L.
Now do heads and cam on that 6.0L and your looking in the 400hp range.

Swapping an intake will be necessary anyways to drop the motor in and the oil pan takes maybe 5 minutes to switch over on an engine stand.

 

[JennaBear]

I would cam it. The 5.3Ls can push out some good power with the right mods.

For the price of the LS1, I would drop in a 6.0L, can be had for cheap. And mod the crap out of it!

 

[Colossus]

Yes, cam can be a good way to go depending on what you want. One of the coolest trucks Ive road in had a 5.3L. It was modded w/ a 224 cam, long tube headers and a stall converter. That truck hauled a** and sounded mean w/ the lope. It ran 8.7 in the 1/8th mile on 20'. Truck could not hook up.

Now that being said that was a 4200lb step side reg cab truck. Our Tahoe's and Yukon's have a lot of a** to pull. Thats why people say 6.0L, bigger motor to help pull that big SUV down the road.

 

[Johny_Vette]

Alright So I guess I'll go with the 6.0.
Found one on ebay 103k miles out of an 05 escalade, $1,500 + $200 Shipping.
Anyone got a better price than that?