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Old 05-11-2009, 09:07 AM
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RHS Pro-Torker heads...

Hey, I picked up the latest Hot Rod and was taking a look at the 'budget' 350 build they had toward the back of the mag.

They validated flow figures and displayed them on a chart and the 2.02 version of the RHS Pro-Torker heads were flowing 250cfm @ .500, which I'm quite impressed for a budget set of iron heads and it was on a more common 4.030 bore.

I know on RHS website they state +250cfm on a 4.2" bore... which I believed was the reason for the increase of flow over the GM heads... I guess I was wrong.

The RHS heads were down on GM vortecs below .300" of lift by 10-15cfm... exhaust port flow were virtually identical between RHS and GM vortecs.

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Old 05-11-2009, 04:27 PM
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We have a set of the pro torkers on a friends roller cammed 350, the 170cc port versions with basic 1.94 1.50 valves. This thing absolutely screams, I`ve been very impressed with there performance, especially when you add in we got them when they first came out years ago, and we got the pair for $450 bucks bare.
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Old 05-11-2009, 04:31 PM
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a good head, and thicker casting everywhere compared to a stock Vortec. This means room for porting in the future if you wanted to.
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