old cobra jet heads to new scj"s ?

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old cobra jet heads to new scj"s ?

Post  stanggt on August 7th 2012, 6:36 pm

Hey guys, I have a bbf with a set of the older cobrajet aluminum heads on it with the script across the end of head, question is will the new style scj aluminum heads work with those pistons also or do I need to renotch?
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Re: old cobra jet heads to new scj"s ?

Post  c.evans on August 7th 2012, 6:40 pm

You need to renotch the pistons. Most likely you'll only need to have the intake valve relief done.

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Re: old cobra jet heads to new scj"s ?

Post  norm on August 8th 2012, 4:09 pm

charlie, isn't it possible to run scj's on a cj type piston , if the duration is smaller than the mid 240-250 range @.050?
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Re: old cobra jet heads to new scj"s ?

Post  dfree383 on August 8th 2012, 6:34 pm

Can work with very mild street cams but still needs to be checked.
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