No, the 1992 Chevy 350 (5.7L) V8 is not a Vortec engine.
Why 400 heads? They are notoriously bad flowing heads without much modification the engine would be about 360 cubic inches, but the heads have nothing to do with the size of the engine.
The 350 engine was introduced in 1968. A 1955 small block would be a 265 or 283.
the block & heads are the same you just have to pull the 305 out & put the 350 back in
85 ft/lbs
Yes they will fit , But you will notice no change what soever. ( no more power )
98 Chevy new 383 block 30k, ticking noise from sounds like heads . 210k on heads;
The cylinder heads are diffrent. Intake from 1998 truck will not bolt up to 1990 heads.
That's what should be on it.
bolt them on their the same
1979 267 / 350 engine ! Danny Coleman
What are your goals with the engine? Stock replacement, or increasing performance? How many miles are on the engine?