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Discussion Starter #1
I have always wondered if its really neccesary to run full roller rockers on a engine with less than 550 lift? I know big blocks have some pretty heavy valve train bits (stock) and was conemplating going back to a high performance version of a stock rocker on my engine. Reason being I purchased a nova with a pretty healthy 396 in it and its going into valve float at 5400 rpm with the following cam and springs.Fair idle, moderate performance usage, good mid
range to upper RPM torque and HP, mild bracket racing,
Street, Heavy, Pro ET, Street ET, etc., auto trans
w/2500+ converter, 3000-3400 cruise RPM, oval
track; Street Stock, Enduro, Hobby, etc., 1/4-3/8 mile,
serious off road, 9.5 to 11.0 compression ratio advised.
Energizer 2200-
5600
10307* 99277-16 226 282 108 7 39 .000 .533
282 H08 103072*b 99377-16d 226 282 43 3 .000 .533 thats the cam spec with the springs they call for. Problem is can I use a stock rocker are they lighter than the crane roller set up that on there now? I wish I had a spring tester to check the springs with:mad:
 

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I have always wondered if its really neccesary to run full roller rockers on a engine with less than 550 lift? I know big blocks have some pretty heavy valve train bits (stock) and was conemplating going back to a high performance version of a stock rocker on my engine. Reason being I purchased a nova with a pretty healthy 396 in it and its going into valve float at 5400 rpm with the following cam and springs.Fair idle, moderate performance usage, good mid
range to upper RPM torque and HP, mild bracket racing,
Street, Heavy, Pro ET, Street ET, etc., auto trans
w/2500+ converter, 3000-3400 cruise RPM, oval
track; Street Stock, Enduro, Hobby, etc., 1/4-3/8 mile,
serious off road, 9.5 to 11.0 compression ratio advised.
Energizer 2200-
5600
10307* 99277-16 226 282 108 7 39 .000 .533
282 H08 103072*b 99377-16d 226 282 43 3 .000 .533 thats the cam spec with the springs they call for. Problem is can I use a stock rocker are they lighter than the crane roller set up that on there now? I wish I had a spring tester to check the springs with:mad:
So you are going to go back to stock rockers to fix valve float? So you can rev it more than the 5400 it will turn now?

Why not fix the pproblem instead of using a band aid?
 

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So you are going to go back to stock rockers to fix valve float? So you can rev it more than the 5400 it will turn now?

Why not fix the pproblem instead of using a band aid?
I agree with Tod on this. I'm no expert by any means, but if your floating valves at only 5400 I would be looking into the springs first. Do you know what pressure's the springs were new? I would contact member "cstraub" on this forum and get his opinion. Chris is very good at what he does and will take care of you. Jeff
 
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