Valve guides and/or valve seals can be worn. Allows oil to get into the combustion chamber.Oil consumption and smoking are signs of either bad piston rings or bad valve guides/valve seals.A compression check on each cylinder can help determine which.
bolt them on their the same
That's what should be on it.
Yes.
nothing. but the intake will be diff.
No, the 1992 Chevy 350 (5.7L) V8 is not a Vortec engine.
they came with "186" casting number heads.........
lt1 is a 350
no
The headers for a 350 and 305 are the same.
No. Not without switching the cylinder heads. I think it was 89, Chevy came out with the 1st generation Vortec heads, which require a different intake.
Yes, but running a 350 cam with 305 heads is not effective,you need to run 350 heads as well. In order to benefit from a 350 cam you need something to flow that extra fuel and air, so using 350 heads along side of the 350 cam will be the cheapest and best choice. HAVE FUN!! A 350 head can physically bolt onto a 305 block. However, 350 heads can have the valves extend into the cylinder and contact the cylinder wall (even with the smaller 305 cam). The 350 cam in the 305 with stock heads will work. You wont want to use 350 heads you will lose compression due to the largers combustion chambers.
NO not even close.