Quote:
Originally Posted by Barry_R
Lykins methodology for measurement is sound. Most FE rockers that have ball adjusters will use a 3/8 cup on the top of the pushrod. Many lifters can actually accommodate multiple ball diameters, but its commonly assumed that you'll want a 5/16 ball at the bottom.
The 8.350-8.400 bottom of cup measurements are pretty normal for hydraulic roller FE engines - so you are not off in that regard.
None of this will matter all that much because the Pro-Comp rockers will probably be the weakest link here. I've had a customer provided set or two here and I refused to use them on the engine. Really poor machining covered up with pretty plating. Caveat emptor and all that...I know they are at a low price. I truly don't intend to rain on that parade, but you should at least have your umbrella ready....
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Quote:
Originally Posted by blykins
And Barry's advice on the rockers is sound.
Saw a set of them spit out needle bearings on the dyno (not one of my builds...).
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This is NOT good news !!!!
Are they that bad?
As you say Barry, they LOOK the business.
Brent do you mean that the roller that sits on the valve is supported by needle bearings?
Most of all I appreciate both your frank and potentially engine saving advice.
cheers