059 Vortec head improvement on my stock 1991 305 TBI - Third Generation F-Body Message Boards

Kevman · 03-08-2010, 03:58 PM

I have a set of Vortec 059 heads, they need valve seals, and springs, but they're very clean. I'm considering putting them on my 305 TBI, as well as a set of short Hedman headers. What kind of improvement would I see from stock?

john1483 · 03-08-2010, 07:59 PM

Quote:

Originally Posted by Kevman

I have a set of Vortec 059 heads, they need valve seals, and springs, but they're very clean. I'm considering putting them on my 305 TBI, as well as a set of short Hedman headers. What kind of improvement would I see from stock?

Remember that u would also need Vortec specific intake manifold , ur stock one wont bolt up.

Kevman · 03-08-2010, 08:13 PM

Quote:

Originally Posted by john1483

Remember that u would also need Vortec specific intake manifold , ur stock one wont bolt up.

oh yea, I seen it on Summit, $400. I'm considering an LT1 cam, too.

Stephen · 03-08-2010, 08:18 PM

To save $ & hit the road ASAP...Could you use a truck intake, that came stock on the Vortec engines?

Then just swap intakes, if you wanted to?

Awesome-X · 03-08-2010, 09:07 PM

I was wondering the same thing, actually.

Stephen · 03-08-2010, 09:35 PM

I would wonder if the tuck manifold is too tall to fit the TBI under a 3rd gen hood?

We know that EGR crossover (i think it is) is an issue for Vortec heads on "standard" SBCs, so that would solve one issue.

Kevman · 03-09-2010, 07:05 AM

Quote:

Originally Posted by Stephen

I would wonder if the tuck manifold is too tall to fit the TBI under a 3rd gen hood?

We know that EGR crossover (i think it is) is an issue for Vortec heads on "standard" SBCs, so that would solve one issue.

I was considering the aluminum one, and deleting the EGR from the PROM (My cousin knows how to do that stuff) It's the emmisions testing up here in Ontario that's worrying me though.