318 LA rebuild after losing a valve seat

pt70 said

The number on the crank from post #40 did not show up from my book. But your crank is different than a 1970 crank from a 318 with the small rods.

Click to expand...

PN shows up here for '71-'91 LA 318. UP to '73 used the lighter rods IIRC. I do not know of any break in crank PN from '70 to '71....so I suspect a typo in the Crankshaft Supply listing....??? Big end widths of the rods did not change. Same rod bearings used from '57 to '91.
http://crankshaftsupply.com/crankcatalog.htm

And edit to add: The AERA crank manual does not show a year break in cranks between '70 and '71 for the 318's.... so, yes, a typo on the CS site catalog.