ESC, Knock Sensor, and an Engine Swap

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Nov 19, 2005 | 11:17 AM

BOSS 357

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From: RVA

Car: 89RS,89TBI FB, 91Z28, 89TPI FORMULA

Engine: 357 SBC TPI

Transmission: World Class T-5 (for now)

Axle/Gears: Strange 12-bolt 3.73

ESC, Knock Sensor, and an Engine Swap

My Formula used to have a 305, now it has a 355. I'm not sure (but I'm going to ask) if the fella who did the xplant swapped in a new 350 knock sensor or ESC. The car runs fine right now, no knock so no problem yet. How critical is it that I get either just the knock sensor or the sensor and a new 350 ESC? I run an MSD6A too, if that matters.

Thanks..
Eric

Nov 20, 2005 | 10:18 AM

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IIRC, the sensor is the critical part. The ESC module itself is the same. The ESC changed from an external module to being part of the ECM with the change to S/D.