nova 307

[fmhguitars@yahoo.com]

I just bought a 71 nova with a 307. Can I put 350 heads and what will I gain. Will I gain higher compression? I hear that the valves were larger along with the combustion chamber. Due I have to use 350 push rods, rocker arms and lifters? When I order and aluminum intake does it have to be for a 350.Thanks Fred M Hunter.

 

[zora]

This is from the Edelbrock site concerning their small block chevy heads and would apply to any head originally used on a 350.
"Due to valve-to-cylinder bore interference, SB-Chevy heads may not be used on engines with less than 4'' bore (262, 265, 283, 305, 307 c.i.d.) except with camshafts having less than .450'' valve lift."
The push rods, rocker arms and lifters are the same. There is no difference in the intake.