LD4B OR LD340 FOR 273?? Coil mount?? Need pics

Ok, there seems to be some confusion here.


D4B - is for the smaller port with the special angle intake holes for the 64 & 65 273 heads.

LD4B - is for the smaller port 273/318 heads from 66 and newer. It does not have mounting bosses for the coil in the stock location.

LD340 - is for the larger port 340/360 heads and has the bosses to mount the coil in the stock position.


The LD4B or LD340 will fit his 67 273.



Steve:

Since you plan on porting the heads, why not go with the LD340 that has the mounting bosses for the coil and open up the ports in the heads to match the intake, or match both to the gasket. Done deal, no special mods needed...