difference between the 4-port and the 6-port 12a
#2
Rotor Head Extreme
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The 6 port isn't a 12A it's a 13b. The 5th and 6th ports are designed to allow a later closing of the intake allowing more timing and hp.
If you have an engine disassembled (particularly the front and rear side plates), you will see a port on top of another port.
If you have an engine disassembled (particularly the front and rear side plates), you will see a port on top of another port.
Last edited by t-von; 01-09-06 at 09:49 PM.
#3
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actually there is a 12a 6-port known as the 12a 6PI.
i'm looking for this engine .
can anyone tell me how do i spot this engine fully assembled ?
thanks.
i'm looking for this engine .
can anyone tell me how do i spot this engine fully assembled ?
thanks.
Last edited by Stalker; 01-10-06 at 12:08 AM. Reason: question mod.
#4
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Originally Posted by Stalker
actually there is a 12a 6-port known as the 12a 6PI.
i'm looking for this engine .
can anyone tell me how do i spot this engine fully assembled ?
thanks.
i'm looking for this engine .
can anyone tell me how do i spot this engine fully assembled ?
thanks.
#5
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Originally Posted by 13btnos
You will see a difference at the secondary ports it will look much different. Hope this helps you out.
is it much wider compared to the 4 port?
and what car does it come in ?
#6
Old Fart Young at Heart
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The US market did not get the 6-port 12a, most of us are not familiar with them. Iirc the 6-port 12a has a butterfly style valve for the 2 aux ports. There should be some sort of extra hardware/ linkage associated with these ports. The front and rear intake manifold ports should be taller than the 4-ports. Hope this helps some.
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Jeff20B
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