Metric Mechanic change only pistons, piston pin, rod, main bearings, rod bearings, worked m44 cyl head, cams, valve springs, retainers, special hydro lifters, ss head gasket, head bolts, cams.
The MM version of 250hp is different from their 350hp version only for displacement and hotter cams... no other mods
If I'll build this I'll buy a spare engine for sure
From the M44 I want to use only the block, the head is from m42 and fully reworked for better flow...
-what are bigger diameter valves that can be fitted onto a m42 head?
I'm starting to spam the metric mechanic email
