To many variables to answer that one.
how much horse power does a stock chevy 350 have ?
yes 6000 rpm on a 305 is WAY too much the max is 4500 and 5000 and that's pushing it. A stock small block Chevy has plenty of power no need to wind it up that much!!
probably a 350 small block
Factory stock, the 400 cu. in.
The 350 is the small block, and in 1986 it would be GM corporate blue.
No. You would need to have the main journals turned down .200". Then it would fit.
400 small block 2brl was the basic engine with a 454 big block optional
For complete engines, the weight of the average (stock) 400 Pontiac at about 650 lbs. is roughly between the average (stock) Chevy small block at about 575 lbs. and the average (stock) Chevy big block at about 680-685 lbs..
LT 1.Rated at 275HP."Second generation" of the Chevy small block.
The most obvious diff is 350 CUBIC inches is much small that 496 cubic inches. Also likely the 350 is a small block where as the 496 is a big block. The 496 will be a physically appearing bigger motor if that is the case. With great displacement also comes greater power or power potential. A mildly modified 350 can produce more power than a stock 496. Big Block Chev weighs in at around 675 Pounds and a 350 small block weighs in at about 575 pounds.
180 to 195 degrees is normal.
I believe that all small block v-8's until 1980 should fit no problem,I swapped a straight 6 out of my nova to a small block 400, and just recently a small block 350,