Converting 6cyl speedo to 8? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

JEM · 10-03-2006, 08:02 PM

Okay, so like everyone else I'm trying to get a tach in the cluster. Mine being a kitbashing project, the '91s get the electric speedo and the late-style font while the tach I've laid hands on looks to be out of an '85 Blazer 4x4 - correct font, perfect cosmetic condition, but it's a 6cyl tach.

Does anyone know of an easy conversion (swapping a couple resistors on the circuit board, or a convenient/reasonably cheap source for 8cyl tach circuit boards, or...) for this?

Or am I dependent on the tender mercies of the local (very good, but quite expensive) speedo shop?

10-03-2006, 08:02 PM	#1
JEM Ironmonger Join Date: Dec 2004 Location: SF Bay Area, CA Posts: 127	Converting 6cyl speedo to 8? Okay, so like everyone else I'm trying to get a tach in the cluster. Mine being a kitbashing project, the '91s get the electric speedo and the late-style font while the tach I've laid hands on looks to be out of an '85 Blazer 4x4 - correct font, perfect cosmetic condition, but it's a 6cyl tach. Does anyone know of an easy conversion (swapping a couple resistors on the circuit board, or a convenient/reasonably cheap source for 8cyl tach circuit boards, or...) for this? Or am I dependent on the tender mercies of the local (very good, but quite expensive) speedo shop? Last edited by JEM; 10-03-2006 at 08:03 PM.



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