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Valve spring installed height on stock BB castings
#463032
09/08/09 12:50 PM
09/08/09 12:50 PM
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Joined: Oct 2003
Posts: 3,698
NE Oklahoma
Von
OP
master
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OP
master
Joined: Oct 2003
Posts: 3,698
NE Oklahoma
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What is the usual installed height for valve springs on stock BB castings with stock length valves?
I ask because I have a set of roller springs that installed a 1.900 will coil bind at max lift, but if installed at 1.950 will be OK.
Im in the mock up stage so I havent tried them at 1.950, but wondering about retainer to rocker clearance at 1.950
Anyone?
Thanks
72 RR, Pump gas 440, 452s, 3800 lbs, Corked, ET Radials,. 11.33@117.72.
Same car, bone stock 346s, 9.5 comp, baby solid. 12.24@110.
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Re: Valve spring installed height on stock BB castings
[Re: Cab_Burge]
#463036
09/09/09 02:02 AM
09/09/09 02:02 AM
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Anonymous
Unregistered
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Anonymous
Unregistered
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Quote:
Quote:
I don't recommend cutting into the head. Use dished retainers.
 use +.050 retainers and +.050 keepers 
and then make sure you don't have interference between the rocker and the retainer. also pray that the 40 year old heads haven't had the valves tipped so much that the +.050 locks and retainers aren't going to sit above the stem.
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Re: Valve spring installed height on stock BB castings
#463037
09/09/09 08:15 PM
09/09/09 08:15 PM
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Joined: Feb 2005
Posts: 4,311
Prospect, PA
BSB67
master
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master
Joined: Feb 2005
Posts: 4,311
Prospect, PA
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Quote:
Quote:
Quote:
I don't recommend cutting into the head. Use dished retainers.
use +.050 retainers and +.050 keepers
and then make sure you don't have interference between the rocker and the retainer. also pray that the 40 year old heads haven't had the valves tipped so much that the +.050 locks and retainers aren't going to sit above the stem.
And that the lash caps (might need them to get that rocker-retainer clearance) don't bottom out on the locks.
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