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-   -   Groove In BBC Lifter Bore (https://classracer.com/classforum/showthread.php?t=69032)

Dwight Southerland 02-16-2018 11:17 PM
Re: Groove In BBC Lifter Bore
 
Carl, you have to allow for the fact that the angle of the lifter bore is also off in the old blocks. That does effect the valve event timing regardless of the lifter type.

carl hinkson 02-17-2018 07:36 AM
Re: Groove In BBC Lifter Bore
 
Quote:
Originally Posted by Dwight Southerland (Post 556395)
Carl, you have to allow for the fact that the angle of the lifter bore is also off in the old blocks. That does effect the valve event timing regardless of the lifter type.
It would have to be off 5 degrees to have any effect and I have not seen any that far off.

Do machine lifter bores ???

Alan Roehrich 02-18-2018 06:54 PM
Re: Groove In BBC Lifter Bore
 
Quote:
Originally Posted by brian schuetta (Post 556266)
What are your thoughts on cutting a vertical groove in a BBC lifter bore for flat tappet cam lifters?
I never do it. I consider it a crutch, at best, which does not actuallysolve any problem, at best it might mask a symptom.


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