L92 head 427 makes 700HP n/a!
08-21-2008, 04:08 PM
#81
Ok i am running Comp SP and RP solid roller lobes with GM Cadillac race hydraulic lifters. The lobes are 252* and 260*@.050"on a 111* LSA the rockers are stock and net lift is .660"/.647" My pushrods are .080" 5/16's My springs are the Ferrea duals with 170 seat and 480 open lbs. You realli think thats enough spring to deflect these pushrods?
08-21-2008, 04:10 PM
#82
FormerVendor
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Yes, the 5/16" pushrods are inadequate for your app. A set of 3/8" x .080" wall pushrods will work wonders as will modifying the rockers w/ the Harland Sharp bearing and trunion upgrade. With these parts (along with an unspecified beehive spring) I have been able to spin my stock eliminator engines to 8200+ without valve float.
08-21-2008, 05:40 PM
#83
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oK WHAT RPM are you turning with no spring surge or seat bounce?
08-21-2008, 05:44 PM
#84
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Yes, the 5/16" pushrods are inadequate for your app. A set of 3/8" x .080" wall pushrods will work wonders as will modifying the rockers w/ the Harland Sharp bearing and trunion upgrade. With these parts (along with an unspecified beehive spring) I have been able to spin my stock eliminator engines to 8200+ without valve float.
HELP?
