285.
I own a 93 Chevy Silverado K1500 4x4 with V8 350 TBI 5.7L. so unless Chevy has changed their blocks, i would suggest that naturally your block is a SB 350. However, since your question was about horsepower, not which block you have, I will tell you the horsepower. The 1998 Vortec 5.7 liter makes 255 horsepower.
280, to 300. NEW ANSWER: Straight out of the book. Advertised Horsepower is-175 HP @ 3600 RPMs. That engine STOCK didn't have HORSEPOWER it had torque
no
no they will not
the 5.7L vortec has about 300hp in a Tahoe/Suburban
Before 2000, yes. After, no.
250 hp
We need to know size engine you have.
185, to 200.
Driver's side, towards the back of the engine block.
10243880 if from 95-00 Vortec. Closest I could find.
Regardless of the block, you have to use Vortec heads to use a Vortec intake.