Engine noise...new engine maybe??

**badboy10** · 09-10-2013, 04:36 PM

These are the images

**cammed goat** · 09-13-2013, 06:27 PM

Ouch!! That's what I was talking about. You could search your local junkyard for a used LS1 or do what other members here have done...go with an LQ4/9 block. Similar to the LS but iron. Your intake manifold and accessories(alternator, air con/brackets) will bolt to the LQ just fine. Others will chime in here to help out some more.

**badboy10** · 09-13-2013, 06:31 PM

Originally Posted by cammed goat

Ouch!! That's what I was talking about. You could search your local junkyard for a used LS1 or do what other members here have done...go with an LQ4/9 block. Similar to the LS but iron. Your intake manifold and accessories(alternator, air con/brackets) will bolt to the LQ just fine. Others will chime in here to help out some more.

Thx for your info. I found one for 2200 shipped plus install. How much would I be looking at four that block? Good and Bads about it?

**cammed goat** · 09-13-2013, 06:43 PM

I haven't heard anything bad about the LQ blocks. More durable than the LS when it comes to adding nitrous or boost. Can be bored/stroked as well. Your old block is worthless with that crack in it.

**cammed goat** · 09-13-2013, 06:54 PM

An LQ block can be had for less than a grand I believe. I could be wrong.

**badboy10** · 09-13-2013, 07:08 PM

Ill look into that then. To fully built the motor back with the block should be less than a new motor or what you think?

**cammed goat** · 09-13-2013, 07:12 PM

I would just swap the intake manifold and the accessories onto the LQ block and drop it in. Remember, you have a choice of 5.3 or 6.0 if I'm correct.

**badboy10** · 09-13-2013, 07:15 PM

Originally Posted by cammed goat

I would just swap the intake manifold and the accessories onto the LQ block and drop it in. Remember, you have a choice of 5.3 or 6.0 if I'm correct.

Would internals still be good by what you saw or need to get new internals?

***SMWS6TA*** · 09-13-2013, 09:16 PM

I'm currently in the process of build my 6 liter.

There's some more to it then just swapping over. There are pros and cons to this like every build. For iron blocks it's added weight. Here are some highlights.

You need to look for specific years to make it an easy swap.

The LQ4 or 9's are what you are looking for. The 9 is preferred because it comes with flat top pistons while the -4 comes is dish. The difference between the 2 is the -9 has compression around 10:4.1 while the -4 is 9:5.1. More compression = more HP. Now if you are building a FI build you want the -4 pistons because it helps in boost applications.

Ideal yrs for -4 are 00-04. The reason is the crank is the same exact size as the LS1. In the pre 99 yrs the crank is a little bit longer. And more importantly the reluctor wheel is 24x in those yrs, after 04 it is 58x. If you get a 58x you have 3 choices. (1) swap your crank (if still good) over, (2) remove and press on the 24x wheel off the LS1 crank (only need to do this if the LS1 crank is trash), or (3) you can get a converter box that goes from 58x to 24x. Cost a bit and adds one more electrical thing that can go wrong.

Yes everything on the LS1 can swap over minus the pistons. For the post 04' yrs they are all -9's and you have the reluctor wheel issue.

Now in regards to bumping the compression up for the -4's you can do like me and get a set of flat top pistons. You will need to have a shop balance the crank and pistons.

Like Rich said, with iron blocks they handle boost much better. Where Aluminum blocks run 3-8 lbs boost, iron blocks can handle 23-28 lbs (other things needed to do this). Common builds over stock are 370, 402, & 408 ci. Each has it's pros and cons. It comes down to how much you want to spend.

Jodi just finish rebuilding her's and it's almost identical to mine. She dyno just a hair under 450 to the wheels. When she upgrades the injectors to 42 lbs and installs a Racetronix FP she'll get some better numbers. I have those so when mine gets finish I'll compare the builds.

In my signature is my 6 liter build, If you want you can click on and ask me anything.

Ohh and I picked up my 6 liter short block for $325. I found out later why. #8 piston was bent, looks like it was hydro-locked. Most long blocks I've seen go for around $900-$1200.