John196701 wrote:Good to see you are staying true, SOHC, the L300 4g64 head does have bigger valves, i think you can get much more out of the engine by just tiding up the original ports, port matching, radius all of the machine in the combustion chamber, to remove the sharp corners, there is more power to be made from the inlet manifold and the exhaust manifold.
I imagine the 4G64 valves are bigger than 4G63 but the LPG forklift valves are bigger than the standard 4G64. I already did a fair amount of port work on the head when I last rebuilt the engine. I'd like to run mpi but the work involved only motivates me to replace the engine altogether with a 1JZ-GTE. I'm also thinking about taking some moulds off my panels, doors and bonnet to make some vacuum infused vinyl ester carbon fibre replacements.
