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Old 04-26-2015, 05:43 PM
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head assembly help

I have a set of brodix race rite heads 270cc ovals, bought bare, I need help finding the right valves and springs, brodix offers a kit but the springs only go to 625 lift and my can is Harold's cams hyd roller with 618 lift so those springs will not work,

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Old 04-26-2015, 06:59 PM
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May be a difficult build for inexperienced builder. You need to know the valve head diameters. The stem size and the overall stem height/length for the heads. This is going to depend also on spring seats, retainer, locks, seals and spring assembled height. Aftermkt stuff can be confusing/

Find out the head manufacturers normal spec for the valves. Could get complicated from there. A lot of trial and error. As every setup is different. Comp Products has what you need. The trick is getting the numbers correct.
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Old 04-26-2015, 09:37 PM
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head assembly help

Why don't you go see a Machinist and talk to him about what you want. He can tell you exactly the correct parts to purchase. I am a little confused too you say that your cam is a hydraulic roller with a .618 lift. Why won't the kit with springs for a .625 lift cam work for you. .618 and .625 is very close. You don't go by lift anyway. You check on the cam card for the seat pressure, installed height, and coil bind.
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