72 chevelle ls swap

[garys 68]

car-part.com, found mine 15 minutes from me, picked it up the same day. Priced from $30-50.

I would say its a lot easier to find a 96 Jeep Grand Cherokee box, JMO.

[chevy4life]

[QUOTE]I have a set of LS2 heads that I sent out to TEA. They did a very nice job with them. I have them on my LQ9 (6.0l) with a custom grind comp cam that puts out over 450rwhp./QUOTE]

Do you remember what the turn around time was? It is truly amazing the amount of power these engines are capable of with such little work. I'm planning on reaching around 430ph with the cam and ported heads with a 5.3l.

I think you need to look more at the spring seat pressure than lift. Please don't cheap out because breaking a valve spring could cost you more in the long run.

Well i guess what you put it that way, im more than happy to spend that money! I've decided to do this project over a year or two so i'm going to do it the right way. thank you.

[67rally]

Do you remember what the turn around time was? It is truly amazing the amount of power these engines are capable of with such little work. I'm planning on reaching around 430ph with the cam and ported heads with a 5.3l.

It was 4 weeks door to door, and that was in March at the height of their season. Mike is a really good guy, spec'd my cam, and responded to all my emails/PM's.

I initially looked at Advanced Inductions, but after several weeks of less than stellar communication, I contacted TEA and am very glad I did. Here are the TEA Stage 2 243's:

[chevy4life]

wow those heads look mint. i'm going to do this in a few short stages so 1 is getting the motor in the car and drivable(aiming for the summer). 2 is getting the new comp cam and swap it in sept(when my bday is). 3 is having the heads ported(the following xmas). i want to make this a fun project, not something to just rush and do. I like my stock stance for the car right now, maybe lower the back an inch at most but i never have any clearance issues, and in mass the roads are terrible and i need all of it. with that said, do you think i will run into any problems if i kept the truck oil pan?

[67rally]

wow those heads look mint. i'm going to do this in a few short stages so 1 is getting the motor in the car and drivable(aiming for the summer). 2 is getting the new comp cam and swap it in sept(when my bday is). 3 is having the heads ported(the following xmas). i want to make this a fun project, not something to just rush and do. I like my stock stance for the car right now, maybe lower the back an inch at most but i never have any clearance issues, and in mass the roads are terrible and i need all of it. with that said, do you think i will run into any problems if i kept the truck oil pan?

I would do the heads and cam at the same time. If you are going to spend big bucks on porting your heads, you'll want a cam with enough lift to take advantage of the flow.

If you just put a big cam in without doing the heads, you're still going to need to do valve springs and pushrods to handle the lift, and the new cam isn't going to do much for you.

Get the engine in and running, and then save up and do heads/cam at once. You'll need to have it tuned afterwards as well.

[BLACKLIST]

i have a 71 chevelle. i picked up a 5.3 out of a tahoe. has the ****ty 706 heads. i guess certain ones were prone for leaking. ill just switch them out.

anyways.. i have some questions as well if i may butt in here if thats ok...

questions i have

-what engine harness do i use and what computer? do i just get the wiring diagram off LS1-tech?
-is it ok just to use the TH400 trans? (yes i know about the spacer part ill need)
-cant you just use a external fuel pump like a aermotive a-1000 instead of switching tanks?
-are you guys just getting a custom driveshaft made?

[garys 68]

You can easily modify the stock harness.
A TH400 will bolt up but an OD trans would be a better choice.
The A body tanks are low and flat, terrible for fuel starvation with external pumps. Check out the impala/caprice tank with intank pump
you can order a driveshaft cheaper than modding or having a custom made
http://southwestspeed.com/?sec=view_...hafts&ssub=!!2 1/2\" Steel Driveshafts

i have a 71 chevelle. i picked up a 5.3 out of a tahoe. has the ****ty 706 heads. i guess certain ones were prone for leaking. ill just switch them out.

anyways.. i have some questions as well if i may butt in here if thats ok...

questions i have

-what engine harness do i use and what computer? do i just get the wiring diagram off LS1-tech?
-is it ok just to use the TH400 trans? (yes i know about the spacer part ill need)
-cant you just use a external fuel pump like a aermotive a-1000 instead of switching tanks?
-are you guys just getting a custom driveshaft made?

[67rally]

i have a 71 chevelle. i picked up a 5.3 out of a tahoe. has the ****ty 706 heads. i guess certain ones were prone for leaking. ill just switch them out.

anyways.. i have some questions as well if i may butt in here if thats ok...

questions i have

-what engine harness do i use and what computer? do i just get the wiring diagram off LS1-tech?
-is it ok just to use the TH400 trans? (yes i know about the spacer part ill need)
-cant you just use a external fuel pump like a aermotive a-1000 instead of switching tanks?
-are you guys just getting a custom driveshaft made?

-I used PSI Conversions for my harness. Nice product, and they are easy to deal with.
-You could use an external fuel pump, but you want to avoid sloshing and fuel starvation, so that's whey most people switch to a tank with an internal pump and baffle.
-I'm using an M12 trans, so I can't help you there, but I already had a fairly new aluminum driveshaft for my old Saginaw, and just had it shortened and rebalanced. The splines were the same.

[chevy4life]

instead of taking the time to drill ur tank if it has no return port, why not spend the 500 bucks and get a brand new efi tank with a internal pump and sender from tanks inc? it has a baffle so if you want to track the car or drive hard you'll never run into that issue? i am building my chevelle on a budget but am going to spend the money on the tank so i never have to worry about fuel shortage. i will just have my driveshaft shortened with a new slip yoke to fit my 4l80e. for the wire harness and computer, so many options. im sure many people here can offer their advice. the shop im buying my motor from is including a cut harness and computer set up for me.

[garys 68]

no way the truck pan will work, it hangs several inches below the crossmember. The CTS-V is the best economical choice. It's only about 3/4" below the crossmember. If you don't lower the car too much, you'll be fine with it.

[SparkyRnD]

we also make a bolt-in radiator for the LS swaps into Chevelle's, let me know if you end up needing one (we also offer PT.com discount as we're a sponsor here)

[chevy4life]

im not sure if this would screw at all with timing but i dont really like the look of the coils ontop of the valve covers. is it ok if i were to run longer lines and mount the coils on the inside of the firewall? im into the "hiding the wire" stuff ever since my uncle hid almost every wire on his 67 fastback. it looks so good

[raustinss]

There are lots of companies which make coil relocation brackets and kits for l.s motors....probably the best then to do is just start looking at other people's set ups and ask what they used, any loss is performance due to the added resistance within the longer wires would be so minimal you'd never notice...maybe a couple hp... and if you need a rad or fan definitely check out RnD Fabrication...i bought a hood release cable n handle...great guys to deal with wouldn't hesitate to deal with them again at all
Ryan Austin

[chevy4life]

im not too worried about relocation brackets just lengthening the wires. so if its that minimal then i will go ahead and do it! thank you and i will keep RnD in mind for future parts