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Author Topic:   Help : Vortec Heads/ 377 Engine / 4bl Alcohol
race crazi
Dirt Roller

Total posts: 6
posted April 15, 2003 02:16 PM
Was wondering if anyone knows the pros and cons of running the Vortec heads with a 377 Engine with a 4bl alcohol carb? We ran these heads in our Super Stock with a 355 Engine and 2bl gas carb. It seemed to work well. We are now running a modified. Any comments (good and bad) would greatly be appreciated. We are somewhat new at running alcohol and not sure if there would need to be some modifications made.

Dirt Freak

Total posts: 353
posted April 15, 2003 05:07 PM
no specific modifications needed to run alky.

Here is my opinion on their performance. Depending on what kind of power you are trying to get out of them I think they will work great as far as being an out of the box production head. But, in my opinion they wont make as much HP as Iron Eagle or Sportsman heads due to the smaller runners. As I have been told that alcohol likes large runners... on the order of 215-230cc for a 377. The Vortec i beleive are 180? but not sure.
On the plus side.. If you run in a claimer class the fact that they use a different intake and valve covers may discourage some from claiming you.

Dont get me wrong I think they are a good head and if you have them I would go ahead and use them. But if it was a choice between going out and buying Vortecs or Darts i would go Dart any day. By the time you get new Vortec machined for springs to take over .450 lift and install s crew in studs, and get the right intake, springs etc. you have spent nearly the same as Dart heads that can be bolted on.

[This message has been edited by dirtbuster (edited April 15, 2003).]

race crazi
Dirt Roller

Total posts: 6
posted April 16, 2003 03:59 PM
We already have them, they just need some work. about $450.00 worth of work. However we are not in a position to buy new aftermarket ones at this time. I sure hate to spend the money if it is not going to make a difference. Thanks for the information. This is the start of our second season running modified so it is a learning process. Modified is surely a world of its own. Thanks for the help.

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