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Not likely that you wiped them out. Not sure I get you on the leakdown test, when you did it last did you have the pushrods installed? Is the cam on the base circle?
If the pushrods are slightly too long but the lifters aren't completely filled with oil, the lifter cup will be 'springy' and take up the excess pushrod length. Once the lifters are full of oil, they'll show the effects of the too-long pushrod because the lifter cup is supported by the hydraulic pressure of the oil in the lifter.
If you're saying that you bolted down the rockers on a cylinder, *and* the cam is on the base circle (meaning both valves closed) and the air is blowing out of the intake and exhaust ports, then the pushrods are too long which is keeping the valves open.
If you remove the rockers from that cylinder that is losing air from both the intake and exhaust and it continues to lose air there, then those valves aren't seating. Not sure what cam you're running or what's been done to the heads but maybe not enough piston to valve clearance, leading to bent valves?
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1998 Z-28 - SLP lid - Ported TB - LS6 Intake - Dynatech SS headers/Catted Y - Magnaflow Exh - 3.42 - Yank SS3600 - UMI weld-in subframe connectors, Adj LCA, Adj PHB, Q1A TA - Bolt-in Relocation Brackets - Strano springs - Koni shocks - 17" C6Z06 wheels - 326HP/335ft-lbs - 12.35 @ 110.41
Quote:
Originally Posted by Blackbirdws6
I can appreciate a dream but this person needed some real friends.
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Last edited by The_Bishop; 11-19-2017 at 01:21 PM.
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