I dont know how i missed it but the failed valve had the bottom of the spring broken.Now i can see why the valve hit the piston and destroyed my new baby!Where do i go from here.Are the spring manufactures going to pay for another motor.......I have been kickin myself in the ass for the last few days thinkin I caused it....Yes the valves had touched the pistons,but not enuff to kill it.So I say......
Pay up SUCKAS!
Vortec Performance Tuned
LQ9 built 4L60 LTs and a billion miles on the speedo!
PRCs? ? ? Dang I hope not those are the springs I have.
I wondered. I had more faith in your cam swapping ability's than that.
99RCSB Broke because I wasted thousands and thousands of dollars on my truck.
I thought all the pistons had marks on them.
The valve hitting the piston is what caused your problem. Don't expect the spring company to buy you a new motor...
2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
midweststreetcars.com
if you had PTV the spring isnt going to do nothing but break. a spring is ment to hold the valve stable not cusion it from the impact of hitting a piston
+1
Don't think spring failed first , like Quik said piston slapping valve broke spring .
Dang didn't knock sensors go off from all the metal to metal ?
Bore it out , slap some pistons in it , put some 317s on it and have 6.0 Liter the hard way .
Now what is a tune again?
Comp Cam 54-412-11 , Int:265, 212, .522 , Exh: 271, 218, .529 , LSA 114 , Longtube , CAI (Vararam) , TransGo HD2 shift kit , tuned by me with EFILive
I am torn here... From the looks of things, ALL of the intake valves were hitting the pistons. BUT if a spring DID in fact break, then that would have caused the engine failure.
LS1 aluminum 5.7L motors can be bored out to .010--nothing more. The block thickness cannot handle more than .010. But you can bore it out and re-sleeve it...back to a 5.7L displacement.
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
Ha Ha, Tyler, where'd you learn that?
Get it sleeved and it will be fine but don't ever spray it, the sleeve will collapse and you'll be redoing it all over again. Don't ask me how I know.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
YOU.
How do you know?
2000 ECSB 6.0L
TORQUER V2 CAM ● COMP 918's ● 7.4 HARDENED PUSHRODS ● K&N SERIES 77 CAI ● 80mm BBK ●PACESETTER LT HEADERS AND 3'' ORY ● SUPER 40 FLOW ● 3000 STALL ● 4.10s ● BUILT 80e ● VORTEC PERFORMANCE TUNE ● MSD 8.5mm PLUG WIRES● ELEC. CUTOUT ● UD & ALT PULLEYS ● FLEX-A-LITE E-FANS ● 22" CENTERLINE STINGRAY III's ● LUND FIBERGLASS TONNEAU ● 2" LEVELING SHACKLES ● 12K HID LOWS & FOGS ● LEDs ● DEBADGED ● WHITE-FACED ESCALADE GAUGES ● KICKER 450.1 ● 2-CVR 10's ● DS60's ● K693's
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