GT-CORDY

Iam looking for a pullout lq4/9 for my mustang project but not sure what year to look for? It will be a turbo 408 when its done.

the_merv

iTrader: (88)

2004-up has full floating Pistons and good Rods in them.

GT-CORDY

I will be using a 408 stroker kit so does it matter since Iam not using the factory rotating assembly?

the_merv

iTrader: (88)

True..I overlooked that. An Iron 6.0l Block is all the same..just find a good priced one.

Redchevyman

iTrader: (4)

I would stick to the gen3 block 2000-2003

the_merv

iTrader: (88)

I'm pretty sure Gen IV started in like '07 or so

GT-CORDY

What's the difference between the Gen 3 and Gen 4? Also why is it better to stick with the Gen 3? Thanks

the_merv

iTrader: (88)

Knock Sensor placement and the Cam Sensor. Gen 3 bolts directly into an LS1 Car using the LS1 Covers, Gen IV is different..need a 1X Cam Gear too.

mcdonald77

iTrader: (21)

I like the 04 gen 3's only 2 differnet length head bolts not three different sizes

GT-CORDY

What heads come on those years,317's?

mcdonald77

iTrader: (21)

pretty sure 317's were on my 04, but I went with l92 heads.

the_merv

iTrader: (88)

Ahh yes the Head Bolts aswell.

omc8

iTrader: (7)

Gen IV first appeared 2005 MY LS2 Vette , GTO . Trucks 6.0 LQ4 and LQ9 up to 2007 classic body style . 2007 new body style NNBS got Gen IV LY6

GT-CORDY

Thanks, so should I look for a Gen3 over the others?

omc8

iTrader: (7)

What heads and intake are you planning on using , oem stuff. Sounds like you have a pretty big budget since its a stroker.

GT-CORDY

Not sure on intake or heads just yet but something nice. Iam getting my feet wet in the lsx world so as I find out what parts are going to go well together then I will buy accordingly. Car will probley be a few year project so the budget will be stretched over that time. I was going to do a 4v swap turbo build but with the price of mod motor stuff that went out the window and in goes the lsx.

omc8

iTrader: (7)

Well with the 6.0 you have the the option to go with L92 / LS3 heads. or cathedral port , I'm a fan of the L92 heads , but big power can be made with cathedral also. Is it going to be trubo or na.

GT-CORDY

Turbo been thinking twin 67's. Iam not sure the difference yet in cathedral port vs l92's ect. Iam very new to the ls game.

omc8

iTrader: (7)

I prefer Gen IV , due its advanage you get L92 heads ,better flowing intake , bigger tb and the option 6.2 verison. But since your going to build a turbo stroker a LQ4 would probally be your best way to go. They are cheap about a 1/3 the price of a Gen IV. As far as heads go 317s are very popular with turbos . Both 317s and L92 have a chamber volume of aprrox 71cc.

Lost_in_calgary

I would look at what rotating assembly you are considering. Since the older and newer blocks come with different reluctor wheels your rotating assembly will determine what block you need.

Determine what rotating assembly you are going to purchase, you may find a deal on the older or newer reluctor wheel styles then find a block corresponding to your rotating assembly.