The Vortec head is better.
Martin
Martin
CK5
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vortec heads on a 1990 350??
- Thread starter snowdriver
- Start date
Because a flow bench says so, along with the dyno.
Martin
Martin
Have you flowed the EQ's?
Are (were) the RHS Vortec replacements worse off as well?
From what I'm hearing the current production Vortecs don't flow as well as the older ones either.
Are (were) the RHS Vortec replacements worse off as well?
From what I'm hearing the current production Vortecs don't flow as well as the older ones either.
The older Vortecs are better. So are a certain casting number of the older Vortecs. You'll have to ask John (80'427), he has the flow bench.
Martin
Martin
