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Will any 86-91 NA 13b work with my 91 convertible?

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Old 02-28-02, 03:00 PM
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Bann3d. I got OWNED!!!

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Will any 86-91 NA 13b work with my 91 convertible?
I think my engine is getting weak due to hard starting and was wondering if any of the NA 2nd gen engines would work work with my 91. Thanks for the help.
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Old 02-28-02, 03:12 PM
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Stick with a Series 5 engine, a Series 4 engine would be a big step backwards.
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Old 02-28-02, 03:34 PM
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Bann3d. I got OWNED!!!

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Originally posted by NZConvertible
Stick with a Series 5 engine, a Series 4 engine would be a big step backwards.
What is a series 5 engine??????
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Old 02-28-02, 04:24 PM
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series 5 = 89 - 91

series4 = 86 - 88

series 5 NA engines have

lighter rotors
higher compression
higher redline
and a completely different intake system

definitely not worth it to go back to a series 4 NA engine..

peace
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