Re: LT-1 soild/hydraulic lifters, cam
You did not set the lash correctly for the LT-1 cam -specifically the inlet side; .023" is correct for the exhaust side. The recommended lash specs for all SB mechanical lifter cams are clearly indicated for each cam on the second page of the two-page paper. The first page just addresses the 30-30 cam. That was written by John. I added the second page so the paper would address all SB mechanical lifter camshafts - 30-30, LT-1, and Duntov. The lastest revision IIRC is December '07, but that change only addressed the deletion of a second optional indexing scheme for the Duntov cam only.
Also, if you do not follow the recommended indexing scheme for adjusting each specific valve, your settings will end up several thousandths loose. The instructions must be followed exactly or you won't end up with proper running clearances. No exceptions! The remaining optional indexing scheme applies only to the Duntov cam, not the 30-30 or LT-1 cams.
With the lash set to the proper specs using the specified indexing procedure, you should be able to fool someone by telling them it's a hydraulic lifter cam and they will have no reason to doubt you - virtually no distinguishable "solid lifter cam noise".
If you do the procedure/settings correctly and the valvetrain is noticeably noisy, then it's not an LT-1 cam.
Duke
You did not set the lash correctly for the LT-1 cam -specifically the inlet side; .023" is correct for the exhaust side. The recommended lash specs for all SB mechanical lifter cams are clearly indicated for each cam on the second page of the two-page paper. The first page just addresses the 30-30 cam. That was written by John. I added the second page so the paper would address all SB mechanical lifter camshafts - 30-30, LT-1, and Duntov. The lastest revision IIRC is December '07, but that change only addressed the deletion of a second optional indexing scheme for the Duntov cam only.
Also, if you do not follow the recommended indexing scheme for adjusting each specific valve, your settings will end up several thousandths loose. The instructions must be followed exactly or you won't end up with proper running clearances. No exceptions! The remaining optional indexing scheme applies only to the Duntov cam, not the 30-30 or LT-1 cams.
With the lash set to the proper specs using the specified indexing procedure, you should be able to fool someone by telling them it's a hydraulic lifter cam and they will have no reason to doubt you - virtually no distinguishable "solid lifter cam noise".
If you do the procedure/settings correctly and the valvetrain is noticeably noisy, then it's not an LT-1 cam.
Duke
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