I have a silverado 1500 with a 4.8l in it but I want to drop a 350 in it. Is this duable? I found a crate for a decent price. ...

I have a silverado 1500 with a 4.8l in it but I want to drop a 350 in it. Is this duable? I found a crate for a decent price. I need a intake for it. Is it compatible with a 4.8l? And also will my headers from the 4.8l to the 5.7? Will the computer work? Please help me. And here's the crate engine http://www.jegs.com/i/GM-Performance/80 ... 2/10002/-1

Nothings going to work with the 350, none of the mounts, none of the fuel injection, headers will not work, i dont think even the tranny would bolt up, now a 5.3 i think most everything would work, probably need it custom tuned though or a ecm from the 5.3. Why in the world would you want to go back to a 350, that 4.8 would out perform a stock 350 any day if the week. Stock 350 225 hp. Stock 4.8 260hp

Those are two totally different designed engines. Is it doable, yes, but it's not really worth it. I'd just mod the 4.8. The 4.8 is a great engine by itself.

everyone says go with a 350, i drove my cousins 98 with 350 and i ate those 35s up in place, my 4.8 will barley bark my 33's, i already have the best tune i can get around my area, i just want to get a motor with more power.

What Gears do you have in your diffs?? if you want to make it have more off the line take off you need to change gears i would bet that you have 3.23 or 3.42 rear gears. you could step up to 3.73 or 4.10 for more performance and it will do better off the pavement..

I have 3.23 on my 09 with the 4.8 it is hard to get mine to spin the new 20's that i put on it but running down the freeway i runs like a bat out of hell.. but i am considering changing to a set of 3.42 or 3.73 have not made my mind up yet and have not talked my self into spending the money

I hve 3-42s so dose he I want to change my reared out to
Posi trac and better gears . Idk I just want more power. And wen I'm running on the interstate I can be doing 70 and get on it and I'll be doing 110-115 it's quick idk I guess I just expect too much out of that lil 4.8

southernpride1500 wrote:everyone says go with a 350, i drove my cousins 98 with 350 and i ate those 35s up in place, my 4.8 will barley bark my 33's, i already have the best tune i can get around my area, i just want to get a motor with more power.

It is torque that causes tires to spin, not horsepower. As stated above, it probably has more to do with the gear ratio your truck has and the torque management software installed than the horsepower/torque rating of the engine.

^^^ i could not say it better myself

go with the 5.3L its 325ci it was made to replace the 350. if you need to spin your tires look into a gear swap. i bet you have 3:73 in there now and if you get any bigger tires then 4:10 would be the way to go.