I am really leaning towards getting one of the 330hp Vortec crate engines GM makes. Seems like a really good deal.

As we all know.. there is exactly one choice of TPI base for it... the SDPC peice.

Anyone have their hands on one of these? I'm really wondering how much porting could be done to it? Is there alot of extra material to work with?

For what its worth... my plan right now for it would be SLP runners with the plenum siamesed and the base siamesed about an inch or two down the runners.

Thanks!

 

from personal experience let me recommend against base siameesing..


Porting yes, siamese no.


Siamesing the runners isn't as bad but the trade off isn't so fair on the base.

As far as how portable the intake is I dont know, but you might ask 3.8TransAm, he's got a vortec setup and He ported it.

 

I've ported my SDPC intake to 1-3/4" with plenty more left to work with.

The 1-3/4" matches my AS&M runners.

All matched up to my FastBurn heads.

I can't decide which fresh machined block or engine combo to use. I have a .030 over 350 4-bolt block and a .030 over 2-bolt 400 to use. Plus the original cranks.

Decisions, decisions.

jms

 

Ok cool.

I thought base siamesing might be a bad idea but wasn't sure

I'm leaning towards a super ram now. After taking my brothers stock L98 for a spin I forgot how bad it is over 3500rpm... its like it just starts laughing at you. I want something that will pull hard all the way to 5000rpm. I'm not sure if a LTR setup will do what I want.

Its too bad all the good TPI alternatives aren't emissions legal... I'd love a Stealthram or a LT1 intake...

 

durr

guess lt1 isn't legal, damn


what about miniram? or to rich for your blood?

 

Nope not to expensive... just no EGR.. so its not gonna pass visual.

I could probably legally run an LT1 intake if I got an Electromotive TEC-II since it doesn't use a distributor... but all that would cost me like 2 grand. Hell I'm not even positive if a TEC-II supports EGR...

So yeah.. for me its either LTR or Superram.

 

a lt1 intake does use a dist. If you use a lt1 engine though it doesnt.