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aluminum heads for my 67 330 engine?

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Old September 16th, 2017, 04:47 PM
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aluminum heads for my 67 330 engine?

Was thinking of replacing heads with a lighter option....have the 330 high compression. Have a valve going bad and may pull the heads....Your opinion please..Would these provide as much performance or better? Than my 330 heads?......Thanks....http://www.ebay.com/itm/Oldsmobile-A...1ZVtoe&vxp=mtr
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Old September 16th, 2017, 05:45 PM
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The stock heads you have are very good heads just have them rebuilt.
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Old September 16th, 2017, 05:56 PM
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Originally Posted by MudEye
Was thinking of replacing heads with a lighter option....have the 330 high compression. Have a valve going bad and may pull the heads....Your opinion please..Would these provide as much performance or better? Than my 330 heads?......Thanks....http://www.ebay.com/itm/Oldsmobile-A...1ZVtoe&vxp=mtr
Those are BBO heads. To use them on an SBO like your 330, you need to mill them quite a bit to reduce the size of the chambers. You need to replace your mechanical fuel pump with an electric one because they won't clear the pump. You need to use a Performer RPM and have it port matched to the larger BBO ports. There is a LOT of "collateral damage". As noted, have your original heads redone.
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Old September 16th, 2017, 06:53 PM
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Originally Posted by joe_padavano
Those are BBO heads. To use them on an SBO like your 330, you need to mill them quite a bit to reduce the size of the chambers. You need to replace your mechanical fuel pump with an electric one because they won't clear the pump. You need to use a Performer RPM and have it port matched to the larger BBO ports. There is a LOT of "collateral damage". As noted, have your original heads redone.
10-4
Am I falling into the Aluminum head hype? Or are they ( Aluminum heads ) an advantage ( besides the weight ) I hear that they take longer to warm up in the winter ( almost here ) But do they produce anymore horsepower for the the swap?......Weight loss vs hp performance?
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Old September 16th, 2017, 06:53 PM
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http://www.ebay.ca/itm/64CC-403-OLDS...gAAOSw8cNUMLDX
You need a pair with the 64cc chamber like above. Avoid Mondello Performance, if at all possible.
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Old September 16th, 2017, 06:59 PM
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Originally Posted by olds 307 and 403
http://www.ebay.ca/itm/64CC-403-OLDS...gAAOSw8cNUMLDX
You need a pair with the 64cc chamber like above. Avoid Mondello Performance, if at all possible.
Will these work with my 330 high compression engine heads?.....
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Old September 17th, 2017, 04:19 AM
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Originally Posted by MudEye
I hear that they take longer to warm up in the winter
Nearly every vehicle on the road today has aluminum heads, so whoever told you this is full of it.
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Old September 17th, 2017, 07:41 AM
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Originally Posted by joe_padavano
Those are BBO heads. To use them on an SBO like your 330, you need to mill them quite a bit to reduce the size of the chambers. You need to replace your mechanical fuel pump with an electric one because they won't clear the pump. You need to use a Performer RPM and have it port matched to the larger BBO ports. There is a LOT of "collateral damage". As noted, have your original heads redone.
I think I'm going to take your advice on this one and have them redone.
Quite frequently now when i start the car ( after a little cruise ) I get a backfire and black smoke puffs out of one exhaust.....Valve spring job? vs heads redone?
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Old September 17th, 2017, 08:02 PM
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You want new 2"/1.625" valves with the bowls opened with a cutter, milled for straightness, multi angle valve job, new springs, guides and seals. You can upgrade to positive seals at this time. That is what you want done.
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Old September 18th, 2017, 07:34 AM
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Then will I be able to use gas without adding lead? ( after new valve job )
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Old September 21st, 2017, 03:57 PM
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Originally Posted by MudEye
Then will I be able to use gas without adding lead? ( after new valve job )
Yes, really did not need to anyway.

Last edited by classicmuscle442; September 22nd, 2017 at 05:18 AM.
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Old September 21st, 2017, 09:47 PM
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Get stainless valves if you are worried about valve recession. or just add 4oz.of Marvel Mystery Oil to every tank of gas.
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