Vortec base vs Regular base
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Joined: Feb 2007
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From: Gold Coast, Australia
Car: 1986 IROC Z
Engine: Nothing but air
Axle/Gears: Four stands
Vortec base vs Regular base
Does anyone know if the SDPC or Edelbrock vortec TPI bases have taller ports where they enter the heads?
I have a set of patriot aluminum heads which can take both style of manifolds. I measured the intake ports to be about 2.09"x1.22". From searching the net I have found that the standard Edelbrock base has 1.98"x1.25" ports. The width is about right but the ports on the heads are quite a bit taller.
Does anyone know the port sizes of any of the votec TPI bases or which base will fit best?
I have a set of patriot aluminum heads which can take both style of manifolds. I measured the intake ports to be about 2.09"x1.22". From searching the net I have found that the standard Edelbrock base has 1.98"x1.25" ports. The width is about right but the ports on the heads are quite a bit taller.
Does anyone know the port sizes of any of the votec TPI bases or which base will fit best?
Joined: Jul 1999
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
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Re: Vortec base vs Regular base
Yes the Vortec TPI base has taller ports. I measured them to be 2.09" by 1.22", same as your heads.
Thread Starter
Junior Member
Joined: Feb 2007
Posts: 82
Likes: 0
From: Gold Coast, Australia
Car: 1986 IROC Z
Engine: Nothing but air
Axle/Gears: Four stands
Re: Vortec base vs Regular base
Thanks for the quick reply. I have been worried about what manifold i was going to use since I got the heads and realised how much taller the ports are compared to standard TPI. Than I noticed the heads are drilled for vortec manifolds as well so its all good.
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