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Piston to Valve clearance - Need help

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Old 06-21-2014, 04:37 PM
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Default Piston to Valve clearance - Need help

Hey everyone. I posted on here once before asking about what to do with a high lift cam. I was directed toward Odessa Cylinder heads, which I was given good feedback about. I finally saved up the $900 for the heads. I got the EQ Magnum heads (their heavier/thicker castings, which also have stiffer springs).

Anyways now I need to put the heads on and to check the clearance of the valves from the pistons I used modelling clay. I cranked everything down to spec and turned the engine over a few ties. When i took the heads of there was small dents in the clay. The clay was probably about 1/4in to begin with and the impressions are probably about 1/8in into the clay. Is this a problem? It was my understanding with the upgraded heads it would not cause a problem with a piston.

More Info: the pistons are flat top, Lift on the cam is .515 (comp), 1995 ram 1500. If anyone can help I'd greatly appreciate it. This has been a long project and I want to finish it!!!
 
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Old 06-21-2014, 04:46 PM
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If you still have an eighth of an inch clearance, you are good to go.
 
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Old 06-21-2014, 05:09 PM
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Alright. This is my first engine build so I am just learning as I go, thank you. Do you happen to know what type of rockers I should look for if I was to upgrade those? I also need pushrods, because somehow I managed to loose one. I figure if I've done this much I mind as well do everything!
 
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Old 06-21-2014, 05:12 PM
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With the high lift cam, I would stick with stock ratio (1.6:1) rockers. For around 300 or so, you can get the harland sharp full roller rockers. That would make for a nice upgrade. Or, have the heads machined for 3/8ths chevy style rocker studs, and you can use chevy roller rockers.
 



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