anybody else running vortec heads here?
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
Re: anybody else running vortec heads here? (atotalnincompoop)
What'd you pull your heads off of? I'm trying to get a set from my brother, that came off his '98 chevy pickup, but he's resisting.
How do they flow compared to the iron heads, or did you have em worked over?
How do they flow compared to the iron heads, or did you have em worked over?
Race Director
Joined: Feb 2003
Posts: 18,484
Likes: 1
From: Everyday you must choose between the pain of discipline and the pain of regret. Fredericktown, OH
Re: anybody else running vortec heads here? (atotalnincompoop)
i can't be the only one. :confused:
if you are are you using stock length pushrods?
thanks :cheers:
if you are are you using stock length pushrods?
thanks :cheers:
Are you giving us a glimpse into your potential problem?
Thread Starter
Race Director
Joined: Mar 2002
Posts: 12,968
Likes: 0
Re: anybody else running vortec heads here? (CentralCoaster)
What'd you pull your heads off of? I'm trying to get a set from my brother, that came off his '98 chevy pickup, but he's resisting.
How do they flow compared to the iron heads, or did you have em worked over?
How do they flow compared to the iron heads, or did you have em worked over?
gm's fastburn heads are the aluminum version.
PORT SIZE: 170
CHAMBER: 64cc
VALVE SIZE: 1.94 / 1.5
FLOW@.100: 70 / 48
FLOW@.200: 139 / 101
FLOW@.300: 190 / 129
FLOW@.400: 227 / 140
FLOW@.500: 239 / 147
FLOW@.600: 229 / 151
Burning Brakes
Joined: Oct 1999
Posts: 1,236
Likes: 91
From: Pittsburgh,PA
Re: anybody else running vortec heads here? (CentralCoaster)
I'm running them on my 85 I did before and after dyno runs with the only changes being heads and the vortec intake I was not happy with the HP gains all the magazines were saying 30+HP gains I only saw about 12 HP. But the torque went up close to 50 Ft-lbs that made a big diffrence in the car. I used the stock size push rods.
Dave
Dave
