shifter77

If you were to rebuilt this engine on a budget, what would be changed out first, to make engine bullet proof?

P.S. NO horsepower increase intended.

dvandentop

pistons are the weakpoint as many have said

AU N EGL

AER or LPE dry sump over the stock system

Dont drive above 6600 rpms

Bink

pm Jason harding @ katech - he'll have several suggestions.

davidfarmer

other than some random oil pump failures, and the rocker arm bearings, a STOCK LS7 has proven to be very durable.

Z06_BluByU

shifter77

Has anyone tried the lingenfelter drysump exchange ? An addition to the oem drysump has been added. Does it work?

GrantB

And valve spring failures? A friend of mine had a spring break while it was idling in his driveway.

Z06_BluByU

the problem with valve spring breakage is that the damage is often done before teh actual failure.. a simple overrev can over heat the springs and begin to weaken them.. then slowly they begin to fail until.. pop.. they break... sometimes in conditions you wouldn't expect (idling in a driveway at a traffic light etc..etc.._)

GrantB

If the PCM stores and flags over-rev conditions (and I think it does), then this motor was not over-revved. I know because the dealer tried everything they could to keep from warrantying it (tried claiming abuse, track usage, etc). The owner claims he never over-revved it as well. Incidentally, he now owns a Gen 4 Viper.

Bink

Good info here:

http://www.ls1tech.com/forums/6222846-post4.html
http://www.ls1tech.com/forums/6222849-post5.html
http://www.ls1tech.com/forums/6276875-post52.html
http://www.ls1tech.com/forums/6276892-post53.html
http://www.ls1tech.com/forums/6276916-post54.html
http://www.ls1tech.com/forums/6276931-post55.html
http://www.ls1tech.com/forums/6461626-post77.html
http://www.ls1tech.com/forums/6469716-post89.html
http://www.ls1tech.com/forums/6469799-post90.html
http://www.ls1tech.com/forums/6469801-post91.html
http://www.ls1tech.com/forums/6599854-post105.html

Here's the whole thread of Short Throw's build -> http://www.ls1tech.com/forums/genera...-race-car.html

Bink

Look into PSI springs.

http://www.psisprings.com/index.php?...ask=view&id=17

Datawiz

hmmm

for me, the weakest point is not engine related, it's clutch related. Per the video done by Ranger on the clutches, my clutch fluid looks like crap after every event. The engine has been bullet proof. I boiled the brake fluid today. Time to find better fluid.

shifter77

Great job BINK. HELPFULL.