old tach, newer engine/distributor - The 1947 - Present Chevrolet & GMC Truck Message Board Network

chevy's rule · 01-17-2005, 10:55 AM

i want to install a factory in dash tach in my 71 truck. it now has a 77 350 engine w/electronic ignition[hei] ? will the tach still hook up the same, or will i have to splice wires? thanks for any help!

**StingRay** · 01-17-2005, 11:26 AM

The tach wire hooks up to the HEI tach connection on the cap. Just use a .250 spade connector crimped on or rob a plastic plug from any Hei car with a tach and splice it on.

01-17-2005, 10:55 AM	#1
chevy's rule Registered User Join Date: Dec 2004 Posts: 7	old tach, newer engine/distributor i want to install a factory in dash tach in my 71 truck. it now has a 77 350 engine w/electronic ignition[hei] ? will the tach still hook up the same, or will i have to splice wires? thanks for any help!

01-17-2005, 11:26 AM	#2
StingRay Senior Member Join Date: Mar 2000 Location: Saskatoon,SK,Canada Posts: 2,476	The tach wire hooks up to the HEI tach connection on the cap. Just use a .250 spade connector crimped on or rob a plastic plug from any Hei car with a tach and splice it on. __________________ Saskatoon, Saskatchewan Canada

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