Total Bolt In Astro T5 OD Trans (250 I6) All GM Off the Shelf Parts-1965 C10 SBSS - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Old Bleu · 05-19-2014, 02:50 PM

Todd, is there a chance that the tach is set for a 6 cylinder engine while you are now running a V8? Is there a switch on the tach to select between six and eight cylinders? Or when it was calibrated, could it have been for a 6 cylinder.

Sharps and Lugnutz are way beyond me when it comes to knowledge of these trucks, but that is what came to my mind when reading your recent posts.

05-19-2014, 02:50 PM	#28
Old Bleu Registered User Join Date: Jul 2013 Location: Loganville, GA Posts: 115	Re: Total Bolt In Astro T5 OD Trans (250 I6) All GM Off the Shelf Parts-1965 C10 SBSS Todd, is there a chance that the tach is set for a 6 cylinder engine while you are now running a V8? Is there a switch on the tach to select between six and eight cylinders? Or when it was calibrated, could it have been for a 6 cylinder. Sharps and Lugnutz are way beyond me when it comes to knowledge of these trucks, but that is what came to my mind when reading your recent posts.



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