so if someone wanted a ls turbo and wanted to actually build it instead of doin stock bottom end what block would be best as in hp and reliablility and also tell me the diff in shortblocks and longblocks and btw it will be for a obd2 car so no obd1 input. thanks guys

 

You want to turbo an LS motor? Just buy an OBD2 LS block and throw in some lower compression pistons with forged rods. If you want more block strength have it sleeved.

I don't know what the point of this thread really is...

 

apparently u didnt read! umm the diff between longblock and shortblocks seems to be the ? at hand

 

Short block in the lower half of the engine only, a long block is the short block and also includes the head. So short block = without the head, long block = with the head. You're also going to be a little limited with power and reliability (together) if you stick with OBD2; as far as the engine management systems that are available.

 

Wow my mistake. I would have thought that with over 500 posts you would know the difference. I guess not. You should do more reading and less posting...

 

LMAO..... I like that answer but here is my .02.
If ur going to build a block using an LS then the question of short block and long block do not apply unless u don't have jack to start with. The b series blocks (with the exception of the B16A) are all the same as far as majority parts and castings. The B18C's & B16B have 2 advantages over the B18A/B and the B20 which make them more desirable but that's another thread. If you put forged pistons and rods in and keep ur redline reasonable as well as boost levels then there should b no real problems occur. The more hp and abuse the more likely it is to break and running OBD2 ur really gonna have a problem tuning things correctly and I'm sure most everybody on this forum can tell u the tuning is KEY!

 

The blocks are not at all the same. B16A/B17 Blocks are different than GSR/B16B/ITR Blocks which are also different from LS Blocks and those are different from B20 Blocks. The cranks are also all different.

@OP Dont go OBD2. Just get a conversion to OBD1 or just run a full OBD1 Harness. You can make 300HP on a stock LS Block. if you want more than that then Build it with Forged H beam Rods and some Forged Pistons. Dont over-rev the **** out of it and it should be ok.
You also said if someone wants a LS turbo, meaning that you need a LS Block & Crank to do an LS Turbo. All the blocks (with the exception of a B20 Block) will hold the same power, the B20 block has thinner sleeves because it is the same cast as a LS Block but it is overbore from the factory to 84mm.

 

Jimster the more u talk the more I'm finding out u r a fool! I said the blocks r majorly the same I didn't say a damn thing about the cranks.. So then mister smart guy what is it that sets them all apart other than the obvious bore and stroke, girddle, & oil sqirters? Can u put a B20 water pump on a B16, yes! What about the oil pump, yes! How about a B17 head on a B18, yes! This is a tough one.... Can I put a B18C crank in to my B18A/B if I so wished, YES! Now read again....

 

There is only ONE major difference from the B16A block than all the others, do u know what that is????

 

you just proved that your an idiot. They all have different deck heights. And B20's have different bores. Just because you can bolt the same external parts to the different motors does not mean that the block is the same dumbass.

B16A/B17A Deck Height - 203.25mm
B18A/B Deck Height - 211.84mm (B20 Has Same Deck Height but 84mm Bore)
B18C/B16B Deck Height - 212.39mm

Now if you knew about motors you would know that the deck height makes a big difference for compression ratios.
Maybe you should mess around with this: http://www.zealautowerks.com/bseries.html
It will teach you that just because you CAN put a crank into another block doesnt mean that you would want to, because the deck heights are different and the rod lengths are different. A B16B is just a Hand built B16 Rotating assembly inside of a B18C Block with extra long rods to reach the top of the deck giving it a good Rod/Stroke Ratio. Please learn before speaking, as you are going to steer people in the wrong direction by giving them false information.

 

The deck height on the B18A/B, the B20, the B16B and the B18C's are all 8.347" jack get a better source of info. I know what I'm talking about and have built my fair share of engines using unknown to u power house block/crank combos. It's all simple math my dear watson!

 

U can take a make a one hell of a frankenstine engine just by simply swapping stock size cranks and rods. Most ppl just don't research and can't do the math so they will always b a step behind the competition. Oh yeah and the B17 and B16A deck heights r 7.992", now I know that it's not 100% ur fault cause ur source lead u to believe wrong.

 

Where is your proof that all the deck heights are the same? The compression calculator is not incorrect about the size of the blocks. If you do the math manually you will see that its impossible for B16's B18A/B and GSR/ITR/B16 to have the same deck heights. But instead you come to this forum and start telling people that they are wrong and their known sources are wrong.

 

Go to your presious compression clac and it even states

Quote:

This calculator is intended for use as a general estimate of your compression only. Not all values are verified.

Now go to wiseco.com and look at the stat's there if u like. I'll even go to the shop and measure an actual block and take a pic and send it to u, lol..
LMAO..... y do u say it is impossible for those blocks to b the same??

 

I'd like to see it.

 

yes im waiting for him to go to the shop which each one of the blocks and get them measured.

 

Lmao, I've been reading these forums and everytime I read them, people always tries to prove Jimster wrong. Lol. Don't argue with him, he knows his engines. I should know lol, I've seen many threads where they try to prove him wrong but in the end. He's always the one that gets the last laugh haha.

 

Yeah that was b4 I finally decided to join this forum, I'll have ur pic's and measurements tomarrow.

 

you friend are WRONG. jimster is indeed correct. why do you think a b16 header wont fit a gsr, or any 1.8 for that matter? the 1.8 block is taller then a b16. PERIOD. i know first hand, i had a b16 header and tried to put it on my gsr.... not happening. you are not god so stop acting like an ***.

 

^^
X2

True true. I had a friend trying to do the same exact thing Lol.

 

WOW, this has gotten misconstrude some where.. All of u need to read my posts again!! I never said the the B16A had the same deck height as the B18A/B, the B16B, the B18C's or the B20. What I said was the B16B, the B18A/B/C, and the B20 all have the same height @ 8.347" and the B16A and B17 have a height of 7.992". You guys need to read things better!!

 

Stop being stubborn. You got called on something and all you had to say was "whoops" but now you are going to try to argue with someone(Jimster480) who totally knows what he's doing? Why don't you just stop talking, you sound like a ****ing moron.

 

I have never had a problem interchanging headers.. is this true? I thought all b-series headers were the same(Not in design of course, but as far as mounting.).

 

if you get a motor specific header (ie: b16, gsr, type r) there is a difference in size and the b16 wont fit anything but a b16. if you get a generic b series header it will fit all of them. i found this out the hard way with a dc b16 header... it didnt fit my gsr. haha made for a frustrating night

 

Start back at the top and read again, this time read word for word and ever word.. no skipping around. Ur completely right, I should stop trying to share my knowledge and secrets with a bunch of morrons who can't even read the dang thread correctly and can't even do any research for them selfs. Jimster ur b@77s must hang real low cause all the r-tards swing from them, LOL.....