[lehiguy]

The swap to SBC is fairly easy. There are things that need to be understood in priciple, like how the coolant circulates through a heater, how a stater is wired, how the plumbing goes on power steering that will make life easier. Be aware that a 1983 Suburban did not come from the factory with a TBI system. The TBI debut was in 1987 so somebody has done a conversion on your suburban. I reccomend taking the wire harness and relays from the truck as well as the motor. The Mark's bellhousing adapter works well and uses all Chevy clutch components other than the the release bearing and your slave cylinder. If you use a Chevy trans, you will have issues with shifter placement and/or motor location. The exception to this is using an GM auto or an NV4500 which has the shift tower on the rear of the top cover making it easier to have the motor in the right place and the shifter as well. Performance wise, there were no outstanding TBI Chevys, they ran flawlessly, but only made 220 HP at best. That can be remedied depending on your willingness to open up your wallet. One source of some interesting information can be found at www.tbichips.com I'm doing TBI later this year on my existing 350 that will be easily 300 horse or more, and 400 pounds of torque. Good luck.