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Old 12-12-2016, 09:12 PM   #11
J.R. Haddad
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Default Re: Camshaft roller bearings

Roller.
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Old 12-12-2016, 10:39 PM   #12
carl hinkson
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Default Re: Camshaft roller bearings

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Roller.

How much lift ?
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Old 12-12-2016, 10:55 PM   #13
J.R. Haddad
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Default Re: Camshaft roller bearings

430 i 419 e
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Old 12-13-2016, 10:22 AM   #14
carl hinkson
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Default Re: Camshaft roller bearings

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Originally Posted by J.R. Haddad View Post
430 i 419 e

If thats lobe lift the BBC cam core would work fine. 55MM would not work.
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Old 12-13-2016, 07:18 PM   #15
J.R. Haddad
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Default Re: Camshaft roller bearings

Carl, what are the advantages of a BBC core. Thanks. J.R.
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Old 12-13-2016, 08:42 PM   #16
carl hinkson
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Default Re: Camshaft roller bearings

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Carl, what are the advantages of a BBC core. Thanks. J.R.
Less flex going to the BBC cam core. If your getting up around .700 plus lift the bigger cam core will give you a better profile to work with.

On my flat tappet circle track engines I use alot of BBC cam tunnels as I can use up to a 1.9 rocker ratio and not take the nose of the cam off.

Lock your dist. up and check your timing it will retard do to flex. Do the same with a Ford where the dist. in on front of the engine !!! No change.

Your cam grinder would have the advice you need.

If your dealing with GM blocks cam tunnels and lifter bores are all over the place which will effect seat timing events (more so with roller lifters) and if there not right it will create an imbalance in the intake and exhaust and will hurt cylinder pressures as well.

If your dealing with a shop that cam Blue print the cam tunnel and lifters bore the end results should be good.

Thats why I posted this link earlier.
http://digital.enginebuildermag.com/...1-ae5dfcff4c38
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