LS9 cam with .650 valve springs - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

1le_ruiz · 09-07-2016, 10:08 PM

I already have .650 dual springs in heads from previous engine but going f/I now and was looking at new ls9 cam for 109$ on jegs. Great price for a blower cam but was wondering if my springs would be a overkill with this cam and damage valve train ?
Thanks

avido · 09-07-2016, 10:18 PM

They are overkill. The force they apply online the valves to close make them jump. There was a good video by Brian tooley about that

1le_ruiz · 09-07-2016, 11:03 PM

Is there a link to the video?

09-07-2016, 10:08 PM	#1
1le_ruiz Drives: 15 1le Join Date: Jan 2016 Location: Santa ana ca Posts: 85	LS9 cam with .650 valve springs I already have .650 dual springs in heads from previous engine but going f/I now and was looking at new ls9 cam for 109$ on jegs. Great price for a blower cam but was wondering if my springs would be a overkill with this cam and damage valve train ? Thanks

09-07-2016, 10:18 PM	#2
avido Drives: camaro ss\rs Join Date: Jun 2014 Location: Italia Posts: 755	They are overkill. The force they apply online the valves to close make them jump. There was a good video by Brian tooley about that __________________ 2014 camaro SS Whipple powered ,3.750 pulley,ID850, CAI,Flowmaster American Thunder exhaust,MGW racing shifter,Bo White ported tb,MightyMouse Catch Can,Vitesse throttle controller,GM 3.91 rear end, Dynatech longtube haders, BTR Pd cam,Fluidampr stock pulley,ZL1 fuel pump and ADM fpcm, Phastek scoop and fluid thank relocation Bmr Motor mount . Tuned by Mastuning

09-07-2016, 11:03 PM	#3
1le_ruiz Drives: 15 1le Join Date: Jan 2016 Location: Santa ana ca Posts: 85	Is there a link to the video?