The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - K10 Suburban

cj847 · 08-10-2022, 11:35 AM

My vote is LS everything especially if you are going to drive it. The SBC is obviously easier, faster. Definitely go FI.

On the downtime, pitfalls issue:
1) I am assuming the avalance is a 4wd (ie the trans is different).
2) The NP205. I haven't checked to see if there is an affordable adapter for it to the 4L60E. Check Novak and Advance Adapters. I would switch to an NP231 passenger drop (1988-1991 K5 and Suburban).
3) If I had an entire truck (as you do), you have lots of options, for example using the fuel pump out of the truck vs aftermarket.
4) Other than those LS swaps are well documented.

My reasoning - even as old as I am and my lifelong love of the SBC, there is nothing better than having a computer to keep an engine in tune and help diagnose when it's sick.

08-10-2022, 11:35 AM	#2
cj847 Registered User Join Date: Sep 2016 Location: Ft Smith, AR Posts: 544	Re: K10 Suburban - 5.3 or 383 with FI? My vote is LS everything especially if you are going to drive it. The SBC is obviously easier, faster. Definitely go FI. On the downtime, pitfalls issue: 1) I am assuming the avalance is a 4wd (ie the trans is different). 2) The NP205. I haven't checked to see if there is an affordable adapter for it to the 4L60E. Check Novak and Advance Adapters. I would switch to an NP231 passenger drop (1988-1991 K5 and Suburban). 3) If I had an entire truck (as you do), you have lots of options, for example using the fuel pump out of the truck vs aftermarket. 4) Other than those LS swaps are well documented. My reasoning - even as old as I am and my lifelong love of the SBC, there is nothing better than having a computer to keep an engine in tune and help diagnose when it's sick.