[Gmecm] Centerbolt TPI baseplate on old heads

[Jay Vessels]

Hi there!

Changed the subject line to reflect reality.

I'm no fan of slotting those holes.  I know of no commercial filler 
piece for this, so your best bet is to make them yourself or have them 
made at a machine shop.  If memory serves the angle is 18 degrees but 
hopefully someone will chime in to verify or correct me.

On a TPI baseplate it's not terrible, but a TBI intake -- well, next 
time I'll just buy the right intake.

Jay Vessels
1982 Chevrolet S-10 Sport, 2.8V6 TBI
2006 Pontiac Solstice


On 10/31/2010 06:33 PM, BNRVL at aol.com wrote:
> Hello Scott , I need the 4- metal angle pieces for the 4 holes in the
> center of my 1990 lower TPI intake manifold . I am converting a 1969 350
> small block to TPI , and had to drill the holes as for the different
> angle of the threads in the old cast iron heads .
> Can you help or know where these pieces can be found ....??
> Thanks
> Bob