Posted by RDavis on Tuesday, September 10, 2002 at 6:52PM :
In Reply to: 318 2barrel to 4barrel posted by doyle on Sunday, September 08, 2002 at 11:25PM :
According to High Performance Mopar, Chysler
did not offer a factory 4bbl intake manifold from 1968-1983 for the LA-318.It is a afternarket manifold if it has a 4bbl .
The 340 or 360 4bbl manifold will not mate properly to the 318 heads as their ports are larger.
You can use 360 heads and intake manifold on
a LA-318 and you will have much better breathing with the larger ports and valves,
but,you will lose some compresson due to the 360's larger chamber if you don't deck the block.