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L20b swap?


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If your 510 has a 3N71B auto then any 6 bolt 3N71B flex plate should fit your torque converter. The distance between converter mounting bolts should be 6.25" just to be sure.


Six bolt flex plates can be found on any L20B equipped vehicle with automatic and also the 720 truck with Z22 up till '82. Z20E equipped 200sx '80-'81 (not the Z22 motor) In or around '82 Nissan introduced a locking torque converter and the flex plates are different shape.

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