Keith Black HEMI heads

Discussion of the 426 Street / Strip HEMIs.

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Rock Chip
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Joined: Mon Mar 31, 2008 8:07 pm

Keith Black HEMI heads

Post by Rock Chip » Sun Jun 29, 2008 7:11 pm

Keith Black HEMI heads p4120711 what can you tell me about them.
Will they work on a 426 block, what special items will they require.
Can you run them on the street, water, half water, solid.

hemifred
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Re: Keith Black HEMI heads

Post by hemifred » Tue Jul 01, 2008 9:37 am

usually water heads .it all depends if they have been ported for a blower motor which most of them were. then other use would be poor performance. I suggest you have them flowed first to see if they would have too much for other uses.
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Rock Chip
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Joined: Mon Mar 31, 2008 8:07 pm

Re: Keith Black HEMI heads

Post by Rock Chip » Tue Jul 01, 2008 10:59 pm

Thanks fred.
Do you know what valve size thay take, and do thay require any special rocker assemblys?

hemifred
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Re: Keith Black HEMI heads

Post by hemifred » Tue Jul 01, 2008 11:57 pm

many were only 2.25 intake and 1.90 exhaust but that is something that changed according to the combo. I have seen them with 2.35 and 2.40 intake and 2.00 exhaust. Consider the possibilty of going through a few sets of hands and they could be any size. rocker arms and stands are same as a conventional Hemi.Exhaust port might be raised "D" shaped and use a different header flange than factory style.
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