[DeTomaso] Valve spring height below top of valve stem?

JDeRyke at aol.com JDeRyke at aol.com
Mon Dec 8 14:17:43 EST 2008


In a message dated 12/8/08 7:13:57 AM, kenn_green at yahoo.com writes:

> Does anyone know a typical number for the difference between the valve 
> spring installed height versus the height of the top of the valve (stem?) above 
> the spring seat?
> 
Need a little more info on what you're running. Stock intake valves were 
different lengths than stock exhausts and aftermarket valves can be had in varying 
lengths. Aftermarket spring retainers are made to different spring heights 
for different valve-stem lengths and for engines using lash caps, and 
aftermarket valves are available with varying keeper groove heights and tapers. All this 
influences valvetrain geometry, which is why some engines make more power and 
last longer than others with identical parts inside. Cheers- J Deryke



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