JDub66

iTrader: (1)

Hello, have a few questions I need a little help with on my 5.3 swap into my 1966 Impala.

Please go easy, I gladly call myself a noob but I pick up on stuff quick.

Here are a few questions, keep in mind I have a 2000 5.3 lm7

Fuel injectors/system:
Want something a little more than stock since I am running a ls1 intake and ported throttle body, cam and tune. Thinking just regular ls1/ls6 injectors or maybe ls2 if they worked?

Let me know if there are any decent after markets that don't break the bank or should I just got used injector or remaned ls1/6?

Also I see fuel rails with and without returns? How do I know which one I should use for my swap? With or without return? This one has me stumped.

How can I clean my maf sensor? Is screening it worth?


Accessories:

What's best for relocating the alternator down and the tensioner? Dirty dingo makes some but they look bulky. Thought maybe another engines dressing would work but need ideas of which ones...

A few questions I can think of to start......any input would be appreciated in my quest to get this swap done and build what I am calling my ls.5 lol!

Thanks in advance for your help!

-Jacob

JDub66

iTrader: (1)

Here is a pic from this weekends work

superdave84

Well, I can help you out with the rails....

Some (maybe all) truck fuel rails have a regulator at the rails. If you use an LS1 intake, or any car intake, you won't want to run truck rails, because they arch way up to go over the tall truck intake. You should probably do what most of us do, and use the Corvette filter/regulator. Mount it after the fuel pump somewhere, and run the return line from there back to the tank. Run the fuel line from the filter/regulator to to the rails like you would normally

JDub66

iTrader: (1)

I have an ls1 intake and fuel rail right now so I might have the regulator already? What does it look like?

superdave84

If you have the LS1 fuel rails, you won't have the regulator.

On the truck rails, you can see the regulator in this pic. Ignore the red arrows. It's the circular rusty thingin the lower leftish area....

superdave84

This is what you want to use:



It won't have the blue fittings though, you will need to buy those. And you don't need to mount it anywhere near the engine. Mount it anywhere after the fuel pump that is convenient.

JDub66

iTrader: (1)

Awesome help! Got it now on the rail/return, looking at regulators right now!

Stormed_Norm

iTrader: (10)

You won't need a regulator with the corvette fuel filter. The "extra" fuel goes back into the gas tank.

JDub66

iTrader: (1)

Got the regulator coming with the gas tank so I am set there. Tank/pump/reg should be here this week.

Got a set of cheap headers but don't think they will fit based on Nicke's post but need to confirm my power steering box is stock since when I bought the car the seller told me it was updated (maybe smaller?) I hope to figure that out quick.

JDub66

iTrader: (1)

Farted around tonight and took the truck intake off and started cleaning things here and there, gonna be a task getting her ready for paint. For fun I mocked up the ls1 intake and took a look at what I have to move.

I'd post a pic but it won't work for some reason

Hart_Rod

iTrader: (3)

FYI, a 2010+ camaro water pump has the same offset as the trucks.

JDub66

iTrader: (1)

I seen that photo you posted on the other thread too, which was very helpful. that inlet position would be helpful to run my radiator but my only concern there is I planned on moving the tensioner pull in the same spot....I guess l could look around at both options and see what is more budget friendly.

JDub66

iTrader: (1)

Current progress (finally got the picture to post) on the engine, got a long way to go. Want her all GM orange

JDub66

iTrader: (1)

Actually maybe this water pump will solve my problems.....it will let the throttle body sit right and move the inlet down....hmmmm


http://www.ebay.com/itm/230993939526...84.m1423.l2649

superdave84

Why do you need another waterpump? You can get a new one, yes, and it will look better...but you can take a ball peen hammer and "massage" the truck pump at the water neck so that the TB doesn't touch. I did this on my 5.3 and it worked fine. Had to shave a little off the TB arm too but it was easy. Took maybe 10 minutes

Hart_Rod

iTrader: (3)

Here's a picture of the water pump and LS intake.

JDub66

iTrader: (1)

Ok so I think I'll go with the massage method first since that's free, it just looked really tight when I was mocking it up. Plus I found the pulley repositioner that keeps the positioner and alt on top of the pow steering.

Speaking of mocking it up these coolant lines are in the way of my ls1 intake (it won't sit flat). I assume they are needed but need them slightly moved out of the way in some spots. Plus advice on valley cover would be good at this time, assuming ls1 valley cover is what I need from what I read.



Other news, I ordered the oil pan today and hope to get some differ headers tomorrow. Gas tank/fuel pump should be here Monday based on tracking number. Harness goes out Monday also.

99ssleeper

iTrader: (98)

That pic is labeled backwards...the center fitting is the return, the offset fitting is the inlet/feed.

Jimbo1367

Some FPFR have the 5/16" & 3/8" reversed. It doesn't matter which is in the middle. 5/16" is the return to tank. The 3/8" is the SUPPLY from the tank.

JDub66

iTrader: (1)

Noted, I'll use this for reference when I get the tank install going.



Also a BIG thanks to everyone else so far that has posted and helped me, being a noob is always tough but I don't think I could do this swap without ls1tech.com!