4.8 5.7 ls1 swap questions

[Blue01]

Im sure this has been asked before but all I could find was 4.8 to 6.0 swap threads. I found a 70k mile complete LS1 for $750 that I want to put in my truck(ecsb 4.8). If I just use the ls1 long block will I need buy any swap parts (other than a new tune)or will all of my 4.8 stuff bolt up.
I am planning on a cam(not sure witch one yet) and stall(probrbly circle D,GM 278mm HP 4L60E LS Torque Converter) while Im doing the swap also.

TIA for any input

[gTeran1]

if its complete,why not just drop the entire thing in?


but yes,your 4.8 stuff will bolt up

[Trevor]

swap over your accessories, oil pan and tube and tray, intake fuel setup. Then plug it all in and go.

[Blue01]

Thanks. How much of a pain would it be to use the LS1 intake and would it be better than the truck intake?
Will my starter and flexplate/flywheel work?
When I order my convertor, do I order one for my truck or for the LS1?

Sorry about all the questions but this is my first non-Mustang project.

When I start ordering parts I will post what I have to make sure I have everything. I will be doing the swap 100 miles from home and Im not sure what kind of parts stores they have out there.

Thanks again for the help

[Trevor]

The ls1 intake is less superior flowing than say a ls6 or fast intake, not many people run them if any. Also since the will be in a truck you most likely want to run the truck intake because the downside to the car intake even though you gain top end, you loose a decent amount of torque which never helps a fullsize truck.

your starter and flex plate will swap over.
Order a converter for the truck tranny.

[Blue01]

Will my 4.8 inhectors be enough for a cammed Ls1

[Trevor]

i asked the same question when i got my motor. depends on the cam i believe. I had to bump up to 8.1 injectors. they were only 80 bucks on ebay

[Blue01]

How big of a cam are you running?

[Trevor]

224/224 .561 .561 114lsa

[Blue01]

Well damn, I guess I will add that to my list of stuff to buy. It just keeps growing. Come on overtime, I need some money...lol