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Old 06-18-2010, 09:21 PM
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Originally Posted by cobalt327
Take a look at POST #478.

This entire thread is a good one, lots of Vortec info, mainly on the L31 5.7 heads, not the L30 5.0L heads, but good nonetheless.
Very good link. I've never anything bad to say about the 059's (probably because my DD is powered by an L30). It was definitely a decent powerplant for it's time and place. For anyone who's interested in some flow numbers, these are from the Stan Weiss flow chart:

Vortec L30 "059" casting:

0000 Int Ex
.100 68 47
.200 128 103
.300 179 138
.400 205 152
.500 221 163
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