I'm trying to find a manual for my truck, anybody know what years TBI was used on the 7.4L?
Thanks, Roger
What Years Were TBI?
Jul 27, 2003
9 Replies
Should mention the last year for TBI was 95.
I guess I should look again, cuz I think my '96 has it too. Mike
does your engine have a big black plastic cover on it that says Vortec?
Heh, that simplifies it.
the vortec system is kind of an odd duck, IIRC (I don't fool much with the vortec trucks that my employer has) the 8 injectors are all near the throttle body with tubes connecting them to poppet valves in the intake. GM calls the Vortec engines a "Central Port Injection" system.
HTH, Bret
conventional
Whats the diff in CPI and SEFI?
Anyone know a good website to explain the various Chevy injection systems? Mike
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