Im considering a 6.0 liter LS1 style truck block swap in my IROC. I found a place that has pretty hot deals on short blocks. And ive had some experience with these motors. They have hardcore potential.

Just curious, would I just follow the protocal for a basic LS1 swap in doing this? Or is there something different about the 6.0 liters that would factor in?

 

Its the same block, don't see what would be any different. SHould go on just like a LS1. You may need to check out the accesory routing and oil pan. Pretty sure the oil pan will not fit, just get one for a f-body.

 

Yeah but the oil pan issue, dont normal LS1s have the same issue? If so I could just use whatever LS1 guys are using.

 

i thought you were building a 4xx sbc motor? Give up on that?

 

I still have the block, but the more i looked into it, the more I realized the OEM 400 block cant handle what I wanna do. And I dont want to drop $1k plus just on the block for a MoTown. This 6.0 from all acounts Ive looked into if you get the right heads is basically an iron blocked LS6. So you have the awesome flow of the LS1 heads, and all, but you have a more durable block for spraying or forced induction. Plus its just cool cause I only know one other person whoes done it. He has a 99 SS with this swap and runs 10 flat

Actually all my projects are on hold for the next moth because Im switching jobs, and trying my damdest to get an LS1 daily driver.

 

You can NOT run the stock pan that comes on a 6L. The truck pans are something like 3-4" deeper, and therefore does not fit with F-car crossmembers and may even come close to hitting the ground.

You will have to buy a F-car oil pan.

Eric

 

So will the stock pan off of a LS1 Z work?

Also I dont supose anyone knows how much power the stock 6.0 liter cranks can handle? I'll definetely buy aftermarket rods, but I was thinking of trying to sneak by with a stock crank if its reasonable. Also how much overbore can the blocks take?

 

im not sure what kind of induction ur gonna go w/,but ive heard alot that the 6L's are TERRIBLE on gas. not trying to burst ur bubble or anything...just wanna give u a heads up if u havent heard of it before.

 

It will either be a nitrous motor or a TT set-up if I come upon a little moremoney. And this would be a toy anyway, its not anywhere near a daily driver. Might even endup being a trailer queen so gas milage is a non-factor.

 

Yes, a pan from a LS1 Z28 will work.

I believe you can put quite a bit of power out with 6.0 internals, even the stock rods. Unless you're looking to run 500+hp, you should be fine with stock internals, from what I have learned.

Rice Killer87: The cubic inch dimensions of the block don't have much to do with the gas mileage of a set-up, other than assuming more cubic inches usually means less mileage. The heads and injection system and the vehicles they're in are what play the largest part as far as mileage.

Getting a 6.0 block doesn't instantly mean you'll get poor mileage.

Eric

 

ugh ive never understood the fascination with twin turbos in V8's. Point and case being that a car around here (roguevette) runs 9.7 on E/T streets using a 4.xL V6 single turbo setup. With the amount of torque a 6.0L could put out and how quickly a large single turbo would kick in you wouldnt notice the millisecond of turbo lag and with that single turbo you could make 1200 hp without too much trouble which is far more then you want.

 

yeah but theres a fairly ecomonicam way to make TT headers using reversed S10 headers with minor fabrication. In order to use a single turbo system you have to buy a set of Kooks or something which can cost upwards of $1500 just for the headers.

 

i wasnt ASSUMING anything,ive heard from several people that own vehicles (trucks and SUV's) w/ the 6.0L and they all said how bad the gas mileage was.

anyway,back to the original thread...

 

Trucks and SUVs are much heavier and have deeper gears to make up for the acceleration loss caused by that extra weight. Big weight+deep gears=bad mileage no matter WHAT engine you have.


I think the iron-block 6.0 has a lot of potential.....if I had the time and money I'd probably build one myself (just to say I did.)

 

Exactly.

Eric