Jarlaxle wrote: Quote:
I recall seeing 89 Chevies with TBI and carbs. I think the change was during the model year.
First year for EFI was 1987...there's a 1987 GMC wrecker where Liz works, it has a TBI 454. Some trucks/RV's had carbs until at least 1990...my cousin's service truck (formerly a Snap-On truck) is a 1990 GMC with a carb'd 454 and a TH-475.
If you have a pump in the tank, you have throttle body injection
My wife and I have owned MULTIPLE vehicles with in-tank fuel pumps and carbuerators!
Be aware that at least one year the 460 EFI Oshkosh chassis had a 3 speed C6 transmission.
A C6 could be ordered until 1994 on HD F-series, Econolines, and F53 chassis.
I think 96 was the 1st year for the Vortec big block Chevy. My 97 has the multi-port injection
It was, though some had TBI as late as 1999.
Ford phased EFI in over several years...I've seen a couple of 86's with MPI 302's...might even have been available late in 1985. The smaller engines (300 I-6 and 302) in light-duty trucks got it first, the 460 got it last. I've seen several 1988-89 F-350's and 450's with carb'd engines. I have never seen a TBI 460...Ford went to MPI on almost everything (with the notable exception of the 300 inline-six) pretty early on.