The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post

shelby987 · 11-15-2005, 09:57 AM

I was looking over the built 250 I bought the other day, and I noticed that there is an 'extra' tapped hole that my current 250 doesn't have.....on the back of the engine, right below the pushrod covers, there is one hole on my current 250, right below the last bolt that holds on this cover, on the new one, that same hole is there (believe its where the oil pressure sender threads into)....but there is a second, looks to be larger hole right between the second and third bolt that hold this cover one.....anyone know what its for? I will try to post pics when I get a chance.

11-15-2005, 09:57 AM	#1
shelby987 Registered User Join Date: Mar 2005 Location: Just outside Durham, NC Posts: 894	additional threaded hole? I was looking over the built 250 I bought the other day, and I noticed that there is an 'extra' tapped hole that my current 250 doesn't have.....on the back of the engine, right below the pushrod covers, there is one hole on my current 250, right below the last bolt that holds on this cover, on the new one, that same hole is there (believe its where the oil pressure sender threads into)....but there is a second, looks to be larger hole right between the second and third bolt that hold this cover one.....anyone know what its for? I will try to post pics when I get a chance.