1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Our 13B vs New 13B

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Old 07-07-06, 05:32 PM
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Our 13B vs New 13B

What are the main differences between say my 86 4 port 13B and the twin turbo 13B block? Can i get turbo stuff and intake/ exhaust manifolds that are for a 93+ and fit them without trouble?
Old 07-07-06, 06:03 PM
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No. Intake port configuration is different. The REW is a pita, the TII is a much better choice. The only way you can have an 86 4-port is if it is a JDM TII import. There were no USDM 4-port 13Bs.
Old 07-07-06, 08:59 PM
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Originally Posted by trochoid
There were no USDM 4-port 13Bs.
All turbos are 4 port.
Old 07-07-06, 10:12 PM
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Exactly, from 86 on and the US market didn't get them until 87.
Old 07-07-06, 10:15 PM
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Old 13Bs (read REPUs, etc.) had 13B 4 ports, and they were not turbo. What are you talking about trochoid?

*Edit* Nevermind. I thought you meant that 4 port 13bs were non-existant (period) in the US before 1987. When, in fact, you meant only turbo motors. My bad.

Last edited by clean85owner; 07-07-06 at 10:18 PM.
Old 07-07-06, 11:15 PM
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LOL. I just bought an engineless REPU, I know about the 74-78 13Bs.
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