hitmanws6

iTrader: (20)

Crossing over to the darkside, went through my 3rd LT1 in 4 years and am moving on. Have a lot of you guys to thank for steering me in the right direction for parts. I just feel I have bad luck with LTs and need to move on to something more budget minded. All you big guys in the LT world keep the spirit aliveHere is the partout thread if anyone wants anything off my setup. https://ls1tech.com/forums/parts-cla...1-partout.html

For now the plan is to go with a turbo LM7 (5.3). My friend is selling me his shortblock with 25K on it, heads with springs/some portwork, rockers and valvecovers for $650. The setup will be

LM7 shortblock
241 heads
LS6 or LS9 cam
Truck manifold hotside
Ebay FMIC
67-76mm Turbo
T56 w LS7 clutch kit
Twin intank pumps w/60-65lb/hr injectors
BBK Intake

Should make mid to high 500s on 12-15 psi

Verz

iTrader: (21)

I dont feel the darkside is the wrong side just a diff route to stay ahead of those damn fords. GL with the partout and new build

the_merv

iTrader: (88)

Man I'd look for a Cam with a decent duration and not a whole lot of lift..the LS6 Cam with Turbo might be a little too much for the smaller CI there.

merim123

iTrader: (11)

I'm assuming the lm7 is a 24x motor. If so, that ls6 cam will bolt in, but I think you need something more to bolt that ls9 cam in. the front timing covers and some other stuff? was looking at this too. Everyone wants that ls6 cam, so used they are going for $150, but that ls9 cam is $150 new. Also, consider the ls9 headgaskets as well? what are you going to do for the hot side?

the_merv

iTrader: (88)

The LS9 is a Gen 4 single bolt Cam..you need the single bolt Cam Gear with a 2X signal..I think the early LS7 MAY be like that..never had to look into it.
The LS2 Timing Cover with Sensor is definately needed for that Cam if its a Gen III Engine.

merim123

iTrader: (11)

lingenfelter has the ls9 cam on their site as a 3 bolt not a single bolt.

edit for forum link talking about using this cam in a earlier engine. looks like you'll need an extra 200+ in parts to use it.

http://www.lingenfelter.com/LPEforum...read.php?t=502

the_merv

iTrader: (88)

Maybe the one that I saw wasnt a LS9 Cam..Cool.

tbird31

iTrader: (22)

Damn 3 LT1s in 4 years? WTF are you doing to them? lol.

Either way good luck with the swap. Sounds like you've got a good plan in mind.

wysemunky

iTrader: (2)

so is your current LT1 blown up or is it just not meeting your goals and aspirations.

hitmanws6

iTrader: (20)

No its done, and I'm not doing anything to them, never even made it to the track. The LS6 cam is a great budget cam. Hot Rod just did a test using a stock 5.3 longblock and that cam. With no meth or intercooleer they were just under 600 at the crank at 12 psi. I'm planning on running 15lbs with beter heads

rich5368

iTrader: (2)

The LM7 is a very underrated motor what with the bigger ci LS1 and Lq4 out there. Car Craft did an NA build with it where they threw on some edelbrock heads a small cam and some headers and twisted somewhere in the neighborhood of 420 out of it. I'm thinking about picking up a little S-10 and dropping a fun little 5.3 in it.

kinglt-1

iTrader: (26)

the ls6 cam is perfect for a turbo 5.3... its a popular budget combination really. I think your right in the ball park with your expectations on power. Good luck with it!!

hitmanws6

iTrader: (20)

Here's pics. The shortblock with 25K, stock heads with portwork, PRC dual springs and rockers with stands all for $550

the_merv

iTrader: (88)

Nice..

lethal bird

iTrader: (12)

Bump for updates?

GREGG 97Z

iTrader: (4)

I was thinking the same thing, you went through 3 motors in 4 years? Sounds more like incorrectly set up motors than an LT1 issue. That or they were seriously abused. No offense I would just like to know what went so wrong each time. My original stock bottom end has been running strong for 14 years now, and I drive it very hard.

ahritchie

iTrader: (1)

Damn...now I don't feel so bad about blowing one up after 14 years of driving it! 3 in 4 years is a bit excessive....I would have jumped boat sooner if I had that kinda luck! Good luck in the LS world

Hackscamaro

should run for a long time. i will be intersested to hear your results. the one they built in hot rod was pretty dang impressive. i happened to pick up that issue when i was at skills usa and saw SAM's ls2 car they knocked the liners out of to put bigger liners in if i remember right it was a little over a 500 ci motor. good luck