Bummer. In all my years of hot rodding, I've never had one seize. I've slung them apart...but never had one lock up.
Were you still using the stock oil pump?
Were you still using the stock oil pump?
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did you paint that with rustoleum hammered black? Kinda looks like it from the photo.... seems to be my new favorite spraypaint (many pieces of the 40 have that, and the MetalTech 4x4 tube bumper on the 80 just got it as well).
As far as EFI goes - you guys are forgetting a couple pieces.... it isn't always about injector size. Injector flow rate is based on a certain fuel pressure behind the injector. Further, the rating is based on a "per minute" rating - but when running the injectors don't spray constantly. To our eyes it looks like they do, but they run at a speed of milliseconds. They don't run constantly - if they did, the amount of fuel they would spit out would be the same at idle/700 rpm as WOT at 5000 rpm.
So running from a 350 to a 383 - unless there's a huge variance in power or the current injectors are barely keeping up in the 350, they will be fine in the 383 with a change in fuel pressure or injector timing.
If the system is eprom based (like a lot of the 90's systems were, Toyota was NOT) then just about any dyno shop should be able to burn eprom chips with new settings....
The difference between the 350 and 454 could be injectors, but it could also run a higher fuel pressure and a larger pump....
yep, rustoleum hammered black.... durable, hides imperfections well....
Like I said, if ya put a 383 in it will need a good reprogram at a minimum. I have read on EFI tuning forums that it may need the 454 injectors or a significant increase in fuel pressure. Adding pressure is a bit harder since there aren't settings for fuel pressure. There are some base pulse width calculators on the Internet to get you close, but it is more guess work and data logging. The 383 may run with the old tune, but it might not run well an certainly will leave a lot of horsepower untapped. Even a minor cam change along with a better intake in my engine required over 20 chip burns to get the best tune. Thankfully I have everything to do it myself.