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Old 07-01-2014, 10:20 PM   #12
LSXapache
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Join Date: Jan 2014
Location: Eastman GA
Posts: 64
Re: '05 5.3l mysterious misfire

Pushrods are true/straight, valve springs look ok and problems doesn't get worse in high rpm. I lapped all the exhaust valves, the intakes looked fine. honestly the exhaust even though they were leaking looked normal for todays fuel and sitting for an extended time, I don't think lapping the valves is going to fix my problem but at least I can eliminate it off the list of causes. Going to put it all back together tomorrow and check with thermo
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'59 chevy apache: camaro clip, LQ4 with 5.3l 799 heads, Vengeance Racing tune, LTs, CAI, 4l60e, 8.5" ten bolt w/ truetrac
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