Porting 305 heads..

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Mar 21, 2012 | 10:56 PM

ericamaro89

Thread Starter

Junior Member

Joined: Sep 2011

Posts: 20

Likes: 0

From: Texas

Car: 1989 Camaro RS

Engine: LO3 305 TBI

Transmission: 700-R4

Porting 305 heads..

Is it worth porting the 305 heads? what gains would i see?
Or is better to invest in some new heads? I was thinking either porting or vortech heads..

Thanks

Mar 22, 2012 | 06:16 AM

ex-x-fire

Supreme Member

Joined: Jan 2011

Posts: 1,732

Likes: 4

Re: Porting 305 heads..

I'd keep your 305 stock & get a 350 vortec engine (used, low mileage), get all the parts to make it run (intake, 350 tbi, headers, ect) & then do the swap over a weekend. A 350 is a big bang for your buck. Read the stickies.

Mar 22, 2012 | 06:37 AM

Ron_90

Member

Joined: Aug 2011

Posts: 462

Likes: 0

From: Baltimore, Maryland

Car: '90 RS

Engine: 305 TBI

Transmission: 700R4

Axle/Gears: 2.73 Open

Re: Porting 305 heads..

Here's the best port and polish thread on the forums:
https://www.thirdgen.org/forums/tech...-pictures.html

If you want to get Vortec heads for a 305 you'll be best served by the 059 casting heads that came on Chevy trucks and Express vans up to like 2002.