Differance 87 turbo 89 turbo
12-20-01, 05:22 PM
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Differance 87 turbo 89 turbo
I know many of the diffs but lookin at a block how can you tell a 87 to a 89. I got sent a 89 j-spec block for my 87 turbo II, They told me they switch the front cover and put a 87 on it but i just what to make sure there tellin me the truth
12-20-01, 11:19 PM
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The key difference on the front cover is that the 87 use a mechanical oil metering pump while the 89 and newer use an electric one, so performing the swap is necessary. 
12-20-01, 11:29 PM
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use the 89 turbo and exhaust manifold!! by changing the front cover to the 87-88 one letsyou run the mech. oil metering pump as mentioned above. if you don't do this you will need to run premix as the 89-91 pump won't work.
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