Posted By: ChadP
Big Block Intake Manifold question - 12/12/14 11:56 PM
Is there much, or any difference in the flow of a '65 426 street wedge stock intake manifold, vs. a '69 440 stock intake?
Big Block Intake Manifold question
Posted By: WyleECoyote
Re: Big Block Intake Manifold question - 12/13/14 12:55 AM
Due to the asymmetrical quadrilateral perspective of the intake runner on the 1965 street wedge stock manifold, the stoichiometric mixture commutation acceleration can be classified according to the type of velocity and speed. Oh heck, I have no idea but I figured a lot of folks stopping in would think there was a genius talking! I hope someone knows the answer, its a great question!
Posted By: lewtot184
Re: Big Block Intake Manifold question - 12/13/14 01:00 AM
the later intake has larger runners and is a little taller. the throttle bores in the later intake are larger and have the holley bolt pattern. the later intake would be an improvement.
Posted By: RapidRobert
Re: Big Block Intake Manifold question - 12/13/14 02:23 AM
Quote:What was the question
Due to the asymmetrical quadrilateral perspective of the intake runner on the 1965 street wedge stock manifold, the stoichiometric mixture commutation acceleration can be classified according to the type of velocity and speed. its a great question!
Posted By: jt4406
Re: Big Block Intake Manifold question - 12/13/14 03:09 AM
Don't know what the question was, but THIS is the answer......
https://www.youtube.com/watch?v=MXW0bx_Ooq4
jess
https://www.youtube.com/watch?v=MXW0bx_Ooq4
jess
Posted By: Cab_Burge
Re: Big Block Intake Manifold question - 12/13/14 09:06 AM
The later HP 440 intakes are way better than the early flatter 413, 426 street wedge intakes(there the same part number 
)
)
Posted By: Dan Halen
Re: Big Block Intake Manifold question - 12/13/14 07:13 PM
Better yet is the spread bore manifold from the mid '70's.