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Titanium valves with hydraulic cam ?

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dfree383
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Titanium valves with hydraulic cam ? Empty Titanium valves with hydraulic cam ?

Post  JBR-3 July 11th 2014, 11:15 pm

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Last edited by JBR-3 on February 22nd 2020, 1:58 am; edited 1 time in total (Reason for editing : .)

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Post  dfree383 July 12th 2014, 12:05 am

The lifter is where the problem is at
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Post  DanH July 12th 2014, 6:24 am

dfree383 wrote:The lifter is where the problem is at
the lifter becomes the problem only when slack becomes present.. lighter valves help keep the slack out

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Post  torino501 July 12th 2014, 8:25 am

with that being said why are there no 5/16 valve stem out there for any of the bbf heads or is there?(lighter)

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Post  dfree383 July 12th 2014, 9:33 am

You can order anything you heart desires.

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Post  JBR-3 July 12th 2014, 10:17 pm

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Last edited by JBR-3 on February 22nd 2020, 1:59 am; edited 1 time in total (Reason for editing : .)

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Post  DanH July 13th 2014, 6:14 am

torino501 wrote:with that being said why are there no 5/16 valve stem out there for any of the bbf heads or is there?(lighter)

T?F A460 heads, can be had new with 5/16 stems part#'s for the ones that have them, check with Summit.

5/16 stems years ago were common for the Clev & BBF plus chevys

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Post  KY JELLY July 13th 2014, 9:04 am

Are you running out of cam or are you running out of spring ?
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Post  dfree383 July 13th 2014, 1:39 pm

JBR-3 wrote:Dfree,
What is the problem with the lifter ?

They pump up because things are happening too fast. Save yourself a lot of agravation and just go with a mechanical flat tappet.

Plus your looking at most regular headed 460 based engines peak at about 6500-6800 rpm anyway.... Within the realm of hydraulic stuff. I think you solving a problem for no reason.

If you have the valves by all means use them, but I wouldn't go out of my way on a hydraulic flat tappet your better of spending the time on a number if other areas.
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Post  rmcomprandy July 13th 2014, 1:57 pm

This sounds like a cure seeking a problem...  Wink 

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Post  dfree383 July 13th 2014, 2:35 pm

rmcomprandy wrote:This sounds like a cure seeking a problem...  Wink 

Exzackary!
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Post  DanH July 18th 2014, 5:33 am

rmcomprandy wrote:This sounds like a cure seeking a problem...  Wink 

why not run the heavy valves / reatainers ?  
 
A lighter valve/retainer can use  lighter spring pressure, sounds like a good reason to not use the heavy parts.

wouldn't less springs pressure help a flat tappet cam live?

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Post  KY JELLY July 18th 2014, 8:29 am

It takes an aggressive lobe to turn the higher rpm , valve weight or materials has more to do with the spring living than the lifter following the cam .
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Post  rmcomprandy July 18th 2014, 9:24 am

KY JELLY wrote:It takes an aggressive lobe to turn the higher rpm , valve weight or materials has more to do with the spring living than the lifter following the cam .

Actually, LESS aggressive, lazy lobes which are large in area will run at higher RPM easier, with less valve spring pressure.
Giving up a lot of torque is the major problem with running them.

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