jshelton2006

iTrader: (15)

after regretting selling my 02 SS a few years back i finally got another SS. its a 2000 with 143k miles on it, im going to build a motor for it and redo the whole car. im wanting a bigger CI motor, like a 395+. my question is, whats the easiest way to do this as far as having to modify wiring harness, having enough room in engine bay, etc? im looking at a TSP 395 LS1, ive also considered going with an ls7 427 or 440 but not sure what all mods would have to be done to get it to work. car is not a daily driver, but is street driven. im looking for around 600hp to the ground, N/A with a big cam and TFS heads. my other car had TFS 215s, an MS4 cam on 111 lsa, ported fast 90/90 and about everything else i could upgrade on it, around 500rwhp, just to give you an idea of what i like. i will definitely go with a cam just as big or bigger than my last one. any input is appreciated, im open to about any suggestions and still trying to decide what route to take. also opinions on best shortblocks to buy or experience with the TSP shortblocks? i see several guys running a 408, any info about that? thanks for the help!

FORD KILLER

iTrader: (1)

I've seen some videos of some pretty bad 408's. Sticking N/A will help keep the cost down. Are looking to run NOS? A built 408 on a 200 shot would be pretty damn fast.

jshelton2006

iTrader: (15)

No I wanna keep it all motor

Whiteaw57

iTrader: (2)

Your best bet would probably be sticking to GEN III stuff if you dont want to do alot with the wiring harness. Otherwise youll have to get the conversion kit which isnt bad but i think its like 600 bucks. And if you really dont want to do any hard mods stay away from the ls7. Youll have to go to a dry sump oiling system for that puppy

ls1 1990 VN

572ci GM Crate, 620hp and huge torque. in your car...high tens

Whiteaw57

iTrader: (2)

in that case if were going that radical lsx 454. bolt right in. or go with the warlock 454

jshelton2006

iTrader: (15)

572 is a bit much haha. I've thought about a 427 or 440 lsx also but don't know if I want to go that big simply bc it is a street car. I think I'm leaning toward a 402 or 408.

intenseblue

iTrader: (1)

408 if it were me.

tboysen00

iTrader: (1)

Lets here some more opinions. What are some current setups and track times? Guys with 402's, are you keeping the bottom end stock?

COPO9560

All depends on your budget. Wet sleeving an LS1 block will eliminate your wiring issues and give you more than adequate size (427-440+) along with strength. With the 4.125 or larger bore, you can move into LS7 style heads like MAST provides and get close to your goals with a large cam. Not a cheap build but it will handle more power in the future should you get bored. Assume you have budgeted the rest of the drive train if you want 600 hp - the non-engine components add up quick too.

Havoc40

I'm also in the same boat. I'm about to start my 1st LS build and was going to do something exact to your 1st SS, but now thinking along the lines of a 402/408. I'm in a 98 A4 vette though.

COPO9560

Why stop at a measly 572ci when you could get 762ci on pump gas??

http://www.sonnysracingengines.com/e...-racing-engine

For the record, you can do much better with BBC than GM's 572 for the money.

SlowBurn

iTrader: (7)

I'd like to hear some experience on this as well...

99bluefirebird

iTrader: (8)

If you are spending the money to make 600hp, the conversion to an LS2/3 setup is nothing, like $300 wiring parts is all. Especially if you have the shortblock built you can avoid dry sump (if ls7) or the wrong 58x reluctor wheel. If going n/a only there is really no reason not to stay aluminum. All depends on the pocketbook. If your SHORTblock budget is less than $5k, go with a 418 LS3. More than that go with 440 LS7 or tall deck RHS for 500ci.
If it were me and I would go 418 LS3 and put small bore LS7 heads on top, should be a $7k engine and make 600 engine horse with a nice cam.

COPO9560

418 would be less expensive than a large bore engine but OP is looking for 600 wheel hp. Not sure you can get there on the smaller bore engine with a cam that can be driven on a regular basis. 600 wheel hp is not easy to get to with a 4.125 bore.

garygnu

consider a stroker ls2 with l92 heads.get a fast 92 intake combo,or go with the 102 mm intake system.search for Patrick-G engine combos ,he will help you with the correct cam for your engine build.

SS_Wannabe

you can go wet sump with an LS7, as this guy did, it requires some different parts and drilling a hole in the dipstick boss.

TSP even mentions this on their LS7 short and long blocks

"GM's LS7 block does NOT come pre-drilled for an oil dipstick since it was designed for the 2006+ Corvette Z06 with dry-sump oiling. If you are installing this engine into a car with wet-sump oiling, you will need the dipstick hole drilled! We offer this to our customers for no additional charge. You must specify when ordering!

you can also order it with the 24x reluctor wheel

Livernois Motorsports did it
LS7 - Dry Sump to Wet Sump Conversion

Installation 2010 Camaro

Floorman279

iTrader: (11)

^^^^^this.

I did a lot of research myself on this.......if you are going to get one built by tsp anyway, you wont need anyconversion kits or anything.......with there 418 ls3, you can choose the 24x reluctor (eliminating the need for the lingenfelter converter box, and avoiding an extra 300bucks). also, they will include the ls2 style front cover.....the only extra wiring you will need is cam sensor and knock sensorextension harnesses......like 60 bucks.......if you put ls7 smallbores on top, with a nice 245/253 cam or something likw that on a 112-113, driveability will not be bad at all witha good tune, and even with a stock ls7 intake id say you should be very close to 600 whp, id say anywhere from 570-600.......add a fast 102 and no doubt in my mindyou will clear 600.

hope this helps.

Floorman279

iTrader: (11)

thinking about doing a 762 in an rx7......hahahaha

RaVagE

To keep the costs a little down I would go with an LS3 coversion, punched out to a 427-429(depending on pistons). The longblock set-up is $2.5K less than the LS7 which will pay for a new oil pan, along with your intake mani, TB, etc. You would definetely need a set of badass heads, a good cam, and supporting mods to see 600 to the deck. I can see you getting around 560-575 realistically. It all depends on your budget and if your willing to sacrafice. Either way, it should be a sick set-up for sure