Theres not a great deal of difference between the two blocks.

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the main difference is the turbo oil feed coming off the oil galley.

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about 3/4's along the oil galley towards the clutch end

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then theres the pistons being a lower compression type.

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everything else is the same believe it or not.

The head though.

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is different

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if your using your na head on the turbo block.

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theres quite a few modifications to be done to get the turbo to fit

/ line up.

Better off sourcing a rev 1/2 head for cheap with manifolds.
