RareBreed0295

iTrader: (35)

I have been trying to decide for a while noe to go with a fully assembled ls2 stroker motor or go with my H/c Ls1 setup. I could get the ls2 stroker from TSP for around 8g. I currently have the TSP PRC 2.5 5.3l heads and the Ms3 cam right now. I haven't installled them yet and im trying to decide whether to go with my original plan or go with the stroker. My ls1 has about 80k miles on it right now but i want to get some good numbers put to the ground. I averaged it up and ill be spending right around 6g for all the parts i want for my Ls1 block. This car will have to be streetable and it is a m6. Any advice on which motor i should go with?

Asmodeus

The stroker and a bigger cam.. cams are pretty cheap, just another 400 bucks.

252/256 110+2

RareBreed0295

iTrader: (35)

Does TSP have about the best deal on the 414cid longblock?

Asmodeus

depends on what parts they use.

if they're the cheapest, then they're probably using the cheapest parts.

RareBreed0295

iTrader: (35)

They have it for around 8g but not exactly sure what i want to do yet. Thats a lot of money for me only being 18 to come up with. I just want a lot of torque.

GEOFRC

Hey man I'm in the same situation. I don't know wether to save for bigger cubes or just make it a little easier on myself and just do Heads and Cam on the stock c.i. motor

BOWTIE

How in the hell will you be spending 6g on parts for a H/C LS1 when you already have the heads and cam? I could see maybe 1-1.5gs more for the gaskets, t/set, lifters, rockers, pushrods, and all the other extras. That is unless you are including fuel system extras and stuff like that which wouyld have to added to the 414 as well. Or are you saying your 80k mile LS1 needs a rebuild and that is the numbers you have come up with to go forged? I just don't get this post, something is missing.

SOM 02

iTrader: (10)

i went stroker motor. my ls1 had 55k, i just didnt wanna put 2000-2800 dollar heads on a stock motor. the way my luck works motor blow and there goes my heads and everything else.

RareBreed0295

iTrader: (35)

If i bought a 414cid or a 402cid shortblock, what other parts would i need to complete the block if i already have the heads, cam, intake, throttle body? Would most of the parts on my ls1 convert to the aluminum ls2 block?

SOMbitch

iTrader: (8)

You'll need bigger heads than the 5.3's with a stroker and you'll also want to upgrade the fuel system. A lot of the other stuff will work for both.

RareBreed0295

iTrader: (35)

You don't think the TSP 2.5 5.3 heads will work? If not, what heads should i go with for around the same price?

tilly

iTrader: (5)

Those heads will bolt right on but they were designed for a smaller bore. You would have to have the heads reworked so it would fit on a motor with a bigger bore.

RareBreed0295

iTrader: (35)

Would it be best to try to sell the h/c setup i have now and get the ls6 stage 3 heads and a bigger cam(ms4 maybe)?

WS6_00

iTrader: (10)

I am no pro at this, I am simply offering my opinion/suggestion. I think if you sold your current setup and tried to get a better one to fit the 402 or 414 whichever you go with, the ms4 would be too small of a cam.

RareBreed0295

iTrader: (35)

I think i could get a bit of money from my current heads setup, just can't decide which shrtblock to go with. 402, 408, 414? The 408 is a lot cheaper so i am kinda leaning towards it.

SmokinU

Ok... To go a cheaper route then the 408 low compression and a nitrous setup would work best. If you had an addtional say 3-6g you can go FI on the 408. You can do many setups on the 408 just depends on what you want to do... But if you do not plan on going forged and jsut an ls2 vs ls1 block be very careful. The LS1 block is actaully a stronger block and can withsatand the bigger numbers better. Many options out there. First is to decide the budget and go from there.

SuperC1

iTrader: (4)

I would have to agree with this statement. Those 5.3 heads will not be enough to support 414ci. You will have to go with something bigger to let that stroker motor breath. Otherwise, the 5.3/MS3 setup would probably work better on the LS1. I probably wouldn't go with anything less than a set of 225 etp's or afr's, or maybe even a set of etp 240's.

RareBreed0295

iTrader: (35)

If i got the 408, i would not be going into fi or any nitrous routes. I mainly want to go to the 408 for the torque. I am looking at getting the l92 heads with the longblocks setup. That setup should come with everything i need including cam, rockers, lifters, intake manifold, and throttle body. That way i can get rid of the fast 90/90, the 5.3s, and the ms3. Hopefully i will be satisifed with the 408. John at TSP said that i would produce good torque numbers.

Brad Hutchcraft

iTrader: (8)

yeah, you have WAYY more cubes to work with, but the thing is the install isnt JUST going to cost you 8g... you will nickel and dime it to death, just like the ls1 H/C build up... FWIW, I would just go over your budget, and priorities, and make sure everything else was in order, because the last thing you want is to build up a bad *** engine, and then limp it because you have the stock 10 bolt in it... When you build for big numbers, then you will always have to update the rest of the car to harness the new power... i would figure up a detailed plan, budget, and then add 10%...lol. Good luck. And also, I would leave the off the shelf cams right where they are, and spring for a custom grind...

RareBreed0295

iTrader: (35)

Yeah, not totally sure what im going to do, but the 408 does comes with a custom grind camshaft so that is a plus.