7 degree valve locks recessed for lash cap?
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7 degree valve locks recessed for lash cap?
I am having a bit of trouble finding a 7 degree lock single groove 11/32 valve lock recessed for lash cap. Any help would be greatly appreciated. Long time reader first time writer.
Re: 7 degree valve locks recessed for lash cap?
Are you looking for a "Super 7" type lock or the smaller, OE type? The stock type may not be available, but using a lock with a .050" reduced installed height may give you the clearance you're looking for.
Re: 7 degree valve locks recessed for lash cap?
Yeah, there just isn't enough thickness on a OEM type 7* to cut the recess. About the minimum valve tip to use a cap without a recess is .250. I have removed about .025 from a cap.Cedarmachine wrote:Are you looking for a "Super 7" type lock or the smaller, OE type? The stock type may not be available, but using a lock with a .050" reduced installed height may give you the clearance you're looking for.
I take it you need the caps due to a geometry issue. Because I can't imagine a case where you would need lash caps and retainers that aren't 10* or Super 7*
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Re: 7 degree valve locks recessed for lash cap?
I am having a rocker to retainer clearance issue. I am running a 1.5" dia spring on a vortec 906 stock
Chevy casting and stock valves. The lash cap was my last ditch effort to try to get the clearance before I have to make a major change with springs. I am running in a circle track class that requires the use of stamp steel rockers.
Chevy casting and stock valves. The lash cap was my last ditch effort to try to get the clearance before I have to make a major change with springs. I am running in a circle track class that requires the use of stamp steel rockers.
Re: 7 degree valve locks recessed for lash cap?
I can see where that spring with a stock rocker could cause a problem.
You could always change the retainers to Super 7 or 10*
You could always change the retainers to Super 7 or 10*
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Re: 7 degree valve locks recessed for lash cap?
Well I thought about that. And the cost of the swap would be about the same as going to a beehive style spring which would also solve the problem. I'm nearing the end of my budget on this build and was hoping for a cheap way out. I know its probably not gonna happen that easy.
Re: 7 degree valve locks recessed for lash cap?
If it was cheap and easy, chkdren would be doing this.jetmech727 wrote:Well I thought about that. And the cost of the swap would be about the same as going to a beehive style spring which would also solve the problem. I'm nearing the end of my budget on this build and was hoping for a cheap way out. I know its probably not gonna happen that easy.
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Re: 7 degree valve locks recessed for lash cap?
If you have plenty of cash on hand and are not on a budget, than you can afford to do it the wrong way. If that is not the case, you better fix/correct it the right way.
Describe the exact issue.
Describe the exact issue.
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Strange Magic Camshaft Technologies
Decisions on parts and advise should not be based on how much money a company can pour into marketing. This is a common mis-conception in the industry.
Strange Magic Camshaft Technologies
Decisions on parts and advise should not be based on how much money a company can pour into marketing. This is a common mis-conception in the industry.
Re: 7 degree valve locks recessed for lash cap?
Clearance the rocker arm if the interference isn't alot.
Re: 7 degree valve locks recessed for lash cap?
Useing lash caps means a longer pushrod too, if your geometry is good already.
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If I didn't overthink stuff I wouldn't be on speedtalk!
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Re: 7 degree valve locks recessed for lash cap?
I'm in the process of correcting the problem. I don't have an unlimited budget but have every intention of assembling this eng correctly. Just like to look at all the options.Strange Magic wrote:If you have plenty of cash on hand and are not on a budget, than you can afford to do it the wrong way. If that is not the case, you better fix/correct it the right way.
Describe the exact issue.
Re: 7 degree valve locks recessed for lash cap?
first question
is the rocker are geometry exactly right already?
is the rocker are geometry exactly right already?
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Re: 7 degree valve locks recessed for lash cap?
It is pretty close but not really able to get exact due to my clearance issue. I just drop the heads back off with my machine shop. They are going to swap out all the 7 degree stuff for the 10 degree stuff recessed for lash cap. Once i get the rocker retainer clearance i can get the geometry correct. Here are a couple little videos i took that might help to explain a little better.wyrmrider wrote:first question
is the rocker are geometry exactly right already?
http://www.youtube.com/watch?v=D4koIORPr_M
http://www.youtube.com/watch?v=ZQwUEGYSk6k
I had to hold the camera and turn the motor over so its pretty jerky
Re: 7 degree valve locks recessed for lash cap?
Unless you need to run stock rockers you should just buy some rollers. You also dont need 1.5 diam springs.
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Re: 7 degree valve locks recessed for lash cap?
tsanchez wrote:Unless you need to run stock rockers you should just buy some rollers
". No roller cams, no roller rockers or roller tips. Factory cast iron OEM
heads, intake and blocks only." from the rule book.
The 1.5 maybe a bit over kill. At this point that is what i have to work with.