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b454rat · 12-28-2019, 11:56 AM

TBI maybe not Vortec. 290 horse 410 torque. Friend towed with both, 454 pulled better maybe same mileage not towing. But towing got better with the 454, and it pulled better, and not bouncing the tach off redline. Now this is with 4l80s. So it prolly be better with the 6 or 8l90.

That junkyard does some stupid stuff. Want top dollar for used parts. Can get new for couple bucks more. Prolly junked the motors so wouldn't have to deal with the public. Many guys are using the motor for test pigs for turbo's nitrous whatever. Now they just go next door and get a complete unit for less. Their loss. Other than late model parts, another reason I don't go there....

12-28-2019, 11:56 AM	#15
b454rat Senior Member Join Date: May 2004 Location: Binghamton, NY Posts: 3,453	Re: Diesel engine swap TBI maybe not Vortec. 290 horse 410 torque. Friend towed with both, 454 pulled better maybe same mileage not towing. But towing got better with the 454, and it pulled better, and not bouncing the tach off redline. Now this is with 4l80s. So it prolly be better with the 6 or 8l90. That junkyard does some stupid stuff. Want top dollar for used parts. Can get new for couple bucks more. Prolly junked the motors so wouldn't have to deal with the public. Many guys are using the motor for test pigs for turbo's nitrous whatever. Now they just go next door and get a complete unit for less. Their loss. Other than late model parts, another reason I don't go there....