stainless valves
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Joined: Oct 2001
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stainless valves
I am trying put stainless valves in my 73' 460 but they are all longer than stock. The stock exhaust valves are 4.983 and the stainless ones are are about 5.074-(they vary depending on the company but all longer than stock 73, but the right length for 71 and earlier) How do I make these work. I gain about .090 in valve spring installed height, plus I need about a .066 shorter pushrod for the right lifter preload. Is there a easy cheap way to fix this? Adjustable valve train and a shim? How do you make the rocker adjustable?
Postmaster
Joined: Aug 2001
Posts: 2,882
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From: Nevada
stainless valves
I believe both Crane and CompCams sell kits to convert your rocker arms to adjustable. If you do convert them, get a push rod length checker to make certain you're installing the correct length push rods.
Why are you going to SS valves? Is this intended to be a high performance engine? If not, why not save the $240+ cost of decent SS valves and eliminate changing out your existing valve train?
Why are you going to SS valves? Is this intended to be a high performance engine? If not, why not save the $240+ cost of decent SS valves and eliminate changing out your existing valve train?
Post Fiend
Joined: Nov 2001
Posts: 6,748
Likes: 118
From: Tallassee, ALabama
stainless valves
To get the right installed spring height (closed pound rate), you can do one of few things, change retainers and/or keepers, find some spring cups that fit your heads, got to a taller installed height spring or add shims betweem the spring and the head (the cheapest).
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