Homer J said:the sy/tys were in '91-93 i think.
as for the sy/tys turbo and manifold, i dont think they will swap on to a newer 4.3. the older 4.3 are different from the '96-present ones.
Likely the entire motor is different.Whifflebat said::word: Thats what I was thinking. The heads and intake manifold are different.
I do know that from 95 to 96, they changed the design of the fuel injection from the shitty CPI (Central Port Injection) to the newer Vortec MPFI (Multiport Fuel Injection). Other than that, not 100% sure if the heads were changed or not. I know the 91-95 "Vortec" 4.3's had higher compresion Vortec heads over the older TBI style. I THINK they didn't change the heads but that I don't know...and actually, If you are to do the swap, I would think you would want a lower compresion ratio...that way you could accomidate more Boost. Anybody else know what I'm talkin about? Like Y2KSierra said, on the factory Turbo Charged motors GM had produced, they were totally different than the regular engines. They were designed for the forced induction...don't know how good of an Idea it would be to put just the turbo converison on :imo91_bowtie said:Black_Chrome...... " they are the same motors, the exhaust manifond is different, it would work"
First of all, sorry to single you out when a few people in the thread made similar comments.... but this is rediculous. If you don't know wtf you're talking about, DON"T GIVE ADVICE! Can one of you guys tell me what changed in the 4.3 from 95 to 96? :think:
Z71Edge said:But yeah, I know that the fuel injection system was totally redesigned for the newer engines because the CPI was a very bad design :nono:....had tons of problems.