Rich,
If the same lifter(s) is/are always involved, the lifter bores aren't
straight. For
Bonneville, I feel more conformable with .080-.090. But that's just a
guess on
my part.
Bryan
Richard Kensicki wrote:
> Anyone have an opinion on using oil restrictors for flow reduction?
> I've pulled the motor out of the Vette I bought to get to the rear of
> the block just to check this.
>
> The engine is a race motor and ground down the the first 2 lobes on
> the cam in a short period of time. This original cam was a solid
> lifter cam. The second owner found the cam problem and replaced the
> cam with milder hydraulic cams; twice; and suffered the same problem
> along with severely worn lifters. He never checked for oil restrictors.
>
> I know the theory of what the restrictors accomplish but does a stock
> SBC have any type of restrictor plug? I'm replacing the cam with a
> solid lifter cam with the original lift/duration. Should I keep the
> restrictors I have? In the Stef's Fabrication catalog their
> restrictors use an .060 hole to reduce flow by 70%. The ones I have
> have an .093 hole. Will this be OK?
>
> Have more questions but will hold off until tomorrow.
>
> RichK
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