opennig O heads to R on the intake side

M

Milan

707 posts · Joined 2000

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#2 · Dec 27, 2002

For the sake of debate it could be done. I still think that you then "alter" the flow characteristics of the port and without a flow bench It would be a trial and error process.

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67 prostreet BB Camaro The Combat Rat
80 z28 Camaro 355ci
71 BB SS Chevelle (clone)
2002 35th anniv SS Z28 conv.

 

J

JetTech

5 posts · Joined 2002

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#3 · Dec 27, 2002

I agree with Milan but would venture one step further, no flow bench equals no porting other than a valve pocket clean up. It is just as easy to do damage as to do good to flow characteristics. If you do try it though please keep us posted. Thank you and good luck with your project.

 

T

T.P.DONAGHY

101 posts · Joined 2001

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#4 · Dec 27, 2002

I have a set of 454 open chamber peanut port heads that I'm just about to use which have had this modification done.
The only reason I'm using them is that the original heads needed a lot of work done rust cleaning etc. & I was pretty sure the valves would of had to been changed to the larger sizes because of rusty seats. These heads came along & I thought to buy them would be cheaper than all the machine work that needed doing on the original heads. These heads look as though they've been professionally done very symmetrical etc. I think it will be a good 6 weeks at least before I get the engine in & running etc. but if your interested I'll let you know what happens.

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Another red SS clone but I'm in the UK & most people think it's a mustang. http:community.webshots.com/user/tpd67

 

M

Milan

707 posts · Joined 2000

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#5 · Dec 27, 2002

Please keep us posted. I have a set of peanut ports I measured them and I would have broken through the walls If I enlarged them

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67 prostreet BB Camaro The Combat Rat
80 z28 Camaro 355ci
71 BB SS Chevelle (clone)
2002 35th anniv SS Z28 conv.

 

T

Timberwolf Discussion starter

83 posts · Joined 2002

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#6 · Dec 27, 2002

I don't know as if I would go that far with them, I was hoping someone could explain why the guy did it or maybe someone had already done it with results, or could explain if the theory even makes any sense in the first place...