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[C2] Height difference between SB and BB blocks

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Old Sep 22, 2022 | 07:53 PM
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Default Height difference between SB and BB blocks

Wondering what the height difference is between a small block say a 64 327/365 and a big block a Anniversary ZL-1 ? Years ago I had a small block in my 66 coupe that had a set of 48IDA Webers on it. I had a L-88 type hood modified to clear the Weber stacks. Car now has a Anniversary ZL-1 in it currently with the factory intake and Holley and have been thinking about a set of Webers for the car. Wondering if the installed small block versus big block has any height differences for intake mounting. Would like to use my old hood if I decide to do this. Thanks, Ken
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Old Sep 22, 2022 | 07:58 PM
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Gove or take 2 inches more at the carb flange on the intake. Blick decl is 9.8 on BB, 9.065 on SB. BB head intake runners add an inch or so.
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Old Sep 22, 2022 | 08:29 PM
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Originally Posted by Avispa
Gove or take 2 inches more at the carb flange on the intake. Blick decl is 9.8 on BB, 9.065 on SB. BB head intake runners add an inch or so.
A SBC factory deck height is 9.025" not 9.065"
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Old Sep 25, 2022 | 07:18 PM
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Ok thanks for the info. Looks like the hood would not clear the Weber stacks on a BB as it did on a SB years ago. Oh well ! ---- Ken
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Old Sep 25, 2022 | 07:58 PM
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Ken, you gotta post pictures. You just gotta....
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