480 rwhp lsxrt manifold

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07-30-2012, 06:58 AM

#31

skeet

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Quote:

Originally Posted by RickLowpez

when u had ur 6.0 what size intake tube size where u running/

ran a 4" tube on the stock shortblock, when i went 408 i upped to a twin tube ( 4" )

Quote:

Originally Posted by rjwz28

102mm is just a hair over four inches (4"=101.6mm)

thanks for comfirming, ill double check this evening when i pull my CAI to be powdercoated

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07-30-2012, 07:53 AM

#32

rjwz28

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No problem. I still have it beaten in my head from my machining days that 1"=25.4mm, so every time I see a conversion guesstimate that doesn't add up I have to chime in

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07-30-2012, 10:44 AM

#33

Vortec350ss

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Quote:

Originally Posted by rjwz28

No problem. I still have it beaten in my head from my machining days that 1"=25.4mm, so every time I see a conversion guesstimate that doesn't add up I have to chime in

That and countless times hammering away at tire size conversions. haha

Thats a great gain from the intake! 500 is so close!

I'm curious what your cam looks like too. Also, how well do those heads flow? How do they compare to a ported 243?