Guys, here are pics of what happens to a re-grind after a little while.
We tried several times, but they will not work.
Also, if you measure several different times for pushrod length, you get more than one measurement.
Just trying to share and help someone avoid a potential problem.
'92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
http://videos.streetfire.net/video/d...d700c6401f.htm
New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.
Yep, cams are case hardened which means that the surface of the journal is heat treated .050" to maybe .100" deep and when you regrind the journal it removes the heat treated section of steel, down to the soft stuff.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
that one looks like it got tha **** beat outta it pretty bad...
'13 silverado LT...stock
'11 lt 4x4 z71..tvs1900
'01 gmc twins 6.0 jakes 400 ladder bars w/ coilovers tuned by nelson performance
so will this happen with custom grinds ?
[SIGPIC]5.3 k&n cai ,asm lt, hf cats, aero turbine muffler, vhp 216/224-551/551-115lsa, tbss intake, ls2 90mm tb,tb bypass, comp double roller tc, hv oil pump, ls2 injectors,nelson tune, b&m super cooler, taylor 10.4mm wires, ngk tr55ix, 373 Detroit tru trac,
not custom grinds, re-grinds.
It works on some old school motors, but will not on LSx motors.
There are no issues with reputable grinders; Comp, Crane, Vinci, etc..
'92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
http://videos.streetfire.net/video/d...d700c6401f.htm
New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.
thats def some ugly stuff there. Was there any other engine damage as a result, besides the obvious new set of lifters.
only the lifters, but that was not long term use. They start to break down pretty quick.
'92 GMC reg. cab, step side. 7.32@ 92.3. SOLD
http://videos.streetfire.net/video/d...d700c6401f.htm
New project: '00 S-10 ext. cab, ZQ8, 370, T-56, daily driver.
looks like it was made out of play-doh.
-leo-
2009 Silverado CC - 6.0L L76|6l80e|3.42s|4/7 drop w/ helper bags
01 silverado ecsb - (RIP 04/2009)
i had one of those...it caused the 5.3 i had in my black truck to start a rod a knocking
2006 silverado SS....Clifford Jr...turbo coming soon
1970 Chevelle ly6 swap....d1 coming soon
i've got a friend who's a got a lq4 with a cam that was cam doctored or something like that...been runnin the piss out of it for almost 2 years now...
2007 RCSB|DTR81 built LSx 3xx|PRC|NX|BOGART|MSD|QUICKFUEL 950 E85|4L80|FTI Converters|Smith RaceCraft|Racepak
midweststreetcars.com
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