The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 73-87 5.3 exhaust manifold question

prodjay10 · 02-25-2020, 12:45 PM

Wouldn’t a swapped vehicle be more efficient and also less of a carbon footprint for these older trucks? Why would there be so many debilitating restrictions on a swap?

02-25-2020, 12:45 PM	#14
prodjay10 Registered User Join Date: Jun 2016 Location: Phoenix AZ Posts: 429	Re: 73-87 5.3 exhaust manifold question Wouldn’t a swapped vehicle be more efficient and also less of a carbon footprint for these older trucks? Why would there be so many debilitating restrictions on a swap?