What will i gain switching to 1.6 rocker arms?

[Supercharged111]

I suggest a tune. It'll give more power than a cam or rockers. Or cam, 1.6s, AND a tune.

 

[99xcss4]

I know that you can only get so much lift out of factory vortec heads but why stop at 1.6 rockers when 1.65 and 1.7 can also be had for sbc you can get more out of a mild/moderate cam that will be plenty streetable I was going to build a engine I would find a cam that is best for what I want to do and then use the rocker arm ratio I can with out exceading valve lift limits of the heads I am using

 

[Scooterwrench]

There's only so much you can do with those Vortec heads unless you get in there and and grind out that swirly and open up the bowls. That thing is a potato in the pipe.

 

[Hipster]

To sum it up, unless the heads flow air at the increased lift number from 1..6's......nobody knows.

 

[Supercharged111]

According to an article from car craft from God knows when they peak at around .500".

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[Hipster]

I mean the 1.6 ratio will help exaggerate the valve events of the stock cam slightly however it’s not going to be a big HP gain alone. Combined with a different cam then there is a substantial potential for a gain depending on how large you go of course.

^^^ this, a lift change is not going to make a miracle.

 

[Hipster]

According to an article from car craft from God knows when they peak at around .500".

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The Mexican one's won'r make anyrhing close to 235 #.500........ not good info

 

[Scooterwrench]

According to an article from car craft from God knows when they peak at around .500".

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Yup,there's that potato!

 

[Supercharged111]

I take the numbers with a grain of salt. I think what's relevant is where they peak.

 

[PlayingWithTBI]

According to an article from car craft from God knows when they peak at around .500".

^^^Yep - this is from "Car Craft's Technical Articles Section" so, it must be gospel - 2 of us agreeing on something

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