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How to determine if an aftermarket intake is for RB or B block?

64SF

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Is there an easy way to determine if an aftermarket intake is for a RB or B block? A measurement or?

Thanks
 
One of each...
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it's easiest to measure across , the b is narrower than the rb
also no 2 barrel rb.
sorry I don't have measurements in front of me. I can tell by looking at them but I've seen a few
 
Oh, BTW there is a 2 BBL RB intake... It came from industrial engine applications... You just rarely see one...
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2 bbl RB 383?
 
They also made factory RB 383 engines.....had one in a 60 Chrysler when i was a youngster....put a 440 4 bbl intake on it!
Flying your inbox is full !!
Question for you : do you still have that 19 spline converter
 
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