I'm floating the hell out of my valves
02-20-2007, 11:29 AM
#1
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I'm floating the hell out of my valves Can somebody point me to someone who can work out a good valve train set up for me? Seems like if you work on the car yourself you don't get much help from some of the vendors. I'm getting a bunch of valve float over 6400.
ET heads
403
.236/.242
Stock lifters
I have a lifter that sounds a bit cooked so I'm going to replace those as well.
ET heads
403
.236/.242
Stock lifters
I have a lifter that sounds a bit cooked so I'm going to replace those as well.
02-20-2007, 12:04 PM
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They are the upgraded ETP spings. I think they are Comp 977 but I have to pull the serial number off the head and call ET. I'd love to be able to throw a .040" shim in there, lighten up the push rods, use some GM race lifters and call it good.
Last edited by AintQik; 02-20-2007 at 12:14 PM.
02-20-2007, 01:37 PM
#5
The 977s have shown lots of valve float. Put some AFR 8019s or Patriot Extreme Duals in there.
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2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
2013 Corvette Grand Sport A6 LME forged 416, Greg Good ported TFS 255 LS3 heads, 222/242 .629"/.604" 121LSA Pat G blower cam, ARH 1 7/8" headers, ESC Novi 1500 Supercharger w/8 rib direct drive conversion, 747rwhp/709rwtq on 93 octane, 801rwhp/735rwtq on race fuel, 10.1 @ 147.25mph 1/4 mile, 174.7mph Half Mile.
2016 Corvette Z51 M7 Magnuson Heartbeat 2300 supercharger, TSP LT headers, Pat G tuned, 667rwhp, 662rwtq, 191mph TX Mile.
2009.5 Pontiac G8 GT 6.0L, A6, AFR 230v2 heads. 506rwhp/442rwtq. 11.413 @ 121.29mph 1/4 mile, 168.7mph TX Mile
2000 Pewter Ram Air Trans Am M6 heads/cam 508 rwhp/445 rwtq SAE, 183.092 TX Mile
2018 Cadillac Escalade 6.2L A10 Pat G tuned.
LS1,LS2,LS3,LS7,LT1 Custom Camshaft Specialist For custom camshaft help press here.
Custom LSX tuning in person or via email press here.
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02-21-2007, 07:24 AM
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In most cases you can feel it, but with my car it felt fine. On the dyno the power just fell off at 6400 and the dyno graph was wiggling all over the place. Since I have the infamous ET heads and crappy springs, I'm attributing it to float.
