Cheap head upgrade
Thread Starter
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Man clutch you just made this even more complicated! 
I'm gonna wait till the morning and see what's up and ask him about drilling and tapping the heads. My manifold is just the stock aluminum manifold, but I'd rather keep my costs down as much as possible right now.
I'm gonna wait till the morning and see what's up and ask him about drilling and tapping the heads. My manifold is just the stock aluminum manifold, but I'd rather keep my costs down as much as possible right now.
Race Director
Joined: Feb 2005
Posts: 16,100
Likes: 17
Originally Posted by Kalway
Man clutch you just made this even more complicated!
I'm gonna wait till the morning and see what's up and ask him about drilling and tapping the heads. My manifold is just the stock aluminum manifold, but I'd rather keep my costs down as much as possible right now.
I'm gonna wait till the morning and see what's up and ask him about drilling and tapping the heads. My manifold is just the stock aluminum manifold, but I'd rather keep my costs down as much as possible right now.
(No luck on the smog thing,btw...)
Rich
Drifting
Joined: Oct 2004
Posts: 1,496
Likes: 1
From: Lafayette Louisiana
Originally Posted by clutchdust
lastly, i have been told the L98 heads did have a different bolt pattern than early heads but i have never verified that.
Thread Starter
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
I'm about 90% sure I'm going to take clutchdust up on his offer, but a few questions for those that know vortec heads.
First is I know they're not ready stock for a high lift cam, what needs to be done to prepare them for a higher lift cam? Second, would 2.02/1.6 valves help alot, a little, or not much at all? Since I'm going to have them rebuilt anyways I figured I'd get all the work done on them at once so I don't end up back tracking as much. Last, how do you go about drilling and tapping them for standard manifolds? If it's more cost effective to drill and tap them I may do that, but if it's too much of a hassle or weakens them I'll just spend the $120 and get a cheapo performer copy.
First is I know they're not ready stock for a high lift cam, what needs to be done to prepare them for a higher lift cam? Second, would 2.02/1.6 valves help alot, a little, or not much at all? Since I'm going to have them rebuilt anyways I figured I'd get all the work done on them at once so I don't end up back tracking as much. Last, how do you go about drilling and tapping them for standard manifolds? If it's more cost effective to drill and tap them I may do that, but if it's too much of a hassle or weakens them I'll just spend the $120 and get a cheapo performer copy.
Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by Kalway
Meh I've got an electric choke. I don't think I'd ever use a divorced choke, don't trust em much.
Not sure if you can convert one to electric
I think the Hot air divorced chokes work great.
Thread Starter
Safety Car
Joined: Dec 2004
Posts: 4,071
Likes: 0
From: San Diego CA
Originally Posted by Bob Onit
I thought you eventually wanted to use a 4MV ?
Not sure if you can convert one to electric
I think the Hot air divorced chokes work great.
Not sure if you can convert one to electric
I think the Hot air divorced chokes work great.
If I couldn't use electric, I'd use a manual choke.
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Melting Slicks
Joined: Mar 2006
Posts: 3,342
Likes: 7
From: Connecticut
Originally Posted by Kalway
Can't remember but I THINK you can. Lars would probably know better than me on that.
If I couldn't use electric, I'd use a manual choke.
If I couldn't use electric, I'd use a manual choke.
I have never done one so, you know how that goes
I had manual chokes 25 years ago........ Bah
I forgot you live in a warm climate so forget what I said about the choke
I only know what I know......
Last edited by Bob Onit; Sep 20, 2006 at 02:39 PM.
