The bolt holes that are in the head were the intake manifold bolts go are in a different angle and place. won't work.
LT1 gen 2 to LS1 gen 3 no
The cylinder heads are diffrent. Intake from 1998 truck will not bolt up to 1990 heads.
Not easily. You have two completely different fuel systems.
Yes they are Vortech is the heads and the intake the rest is the same
Yes they are the same block and heads you might have to swap intakes though
No it Has a different bolt pattern because of the engine size
I don't belive there's any difference, just the year.
The main difference is that the 1994 computer has 1 plug and the 1998 computer has 3 plugs.
how do you set valve on 1998 350 vortec
YEs 4.3L
Yes they are the same.
There are 4 different Vortec engines for that year. Stock horsepower at the crank are: The 4.3L (262ci) Vortec V6 has 190hp The 5.0L (305ci) Vortec V8 has 230hp The 5.7L (350ci) Vortec V8 has 255hp The 7.4L (454ci) Vortec V8 has 290hp