The cost to cut the seats for the larger valves probably isn't justified.
Stock Vortec heads flow pretty well but need the spring seats cut for larger
springs to handle lifts over .425. They also feature pressed-in studs and
will require a more expensive Vortec-compatible intake manifold.
Scoggins-Dickey and other parts houses sell Vortec heads with the
appropriate mods for around $650-700/pair. Add almost another $100 extra for
the Vortec-compatible intake.
Clint Hooper
H&H Custom,owner
1969 El Camino ProTourer
2001 H-D FLHR custom bagger
http://dalesplace.com/misc/friends/clint/clint_hooper.htm
>
> >From: "KW" <[EMAIL PROTECTED]>
>> >
> >Planning out the small block for my '68 Malibu. I want to build a 383,
and
> >use Vortec heads. Everyone says that you can put 2.02 valves in these
> >heads, but I haven't been able to find any hard numbers on flow or HP
> >gains. Any ideas out there? Is it worth the time and money?
> >Thanks,
> >Keith
