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Cam Question
Posted by: corvairsince70 ()
Date: October 07, 2019 03:07PM

I pulled a LM turbo engine apart and it has an aftermarket cam in it. The only identification on the gear end is 53754C, TB, 20, R.
Can anyone identify this cam. It has an Otto parts cam gear on it so it may be an Otto parts cam. But which one?

Dennis
Nashville area
'68 Conv 140 PG
'66 Corsa Conv 180
'66 Corsa 140

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Re: Cam Question
Posted by: FL103Dave ()
Date: October 07, 2019 03:24PM

I would bet it is an Otto cam - TB 20,

TB-20 and OT-20
A good choice for the enthusiast who wants more performance but does not want
to give up good driveability for the street. Little change in low end performance, big
improvement in midrange power, and higher top end.

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Re: Cam Question
Posted by: JimBrandberg ()
Date: October 08, 2019 04:45AM

Older Otto cams were great with split durations and such. You may not get the same thing today.

Jim Brandberg
Isanti, MN
CorvairRepair.com



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