As you have already been told it's not worth sticking clevo heads on a windsor nowaday....the aftermarket Windsor heads flow better than clevo heads

A stroked Windsor with aftermarket heads will blow the doors off any SBF short of a stroked Clevo with aftermarket heads !!!!!

As far as I know there are no "inferior" 351 Windsor blocks.

I read somewhere that they stopped making the high nickel "mexican" blocks in October '75.....maybee someone has "decided" that means all post '76 blocks are suspect?????....sounds like crap to me

Unless you plan on doing some serious stuff I think a 396, 408 or 427 stroked tall deck windsor (ie any 351 block) with a set of aftermarket allow heads (take your pick, they all flow great number) would be a killer combo for a truck.

Trick with any stroked engine is to run longer rods. In a Windsor that usually means a SCAT or similar 6.0 inch Ch*v style rod.....this reduces the angularity of the rod and results in less sidewall presure on the bores....which usually means it revs "easier" and lasts longer

A mate of mine has a 410 inch Windsor with AFR heads and a tunnel ram in a 1200 # car.....seriously scary stuff

But not as scary as another mate with a blown 427 Clevo with the Australian 3V alloy heads in a A Roadster.......when he hits it in that it gets your attention real quick.

 

But not as scary as another mate with a blown 427 Clevo with the Australian 3V alloy heads in a A Roadster.......when he hits it in that it gets your attention real quick.[/QUOTE]

those 3v heads are the best flowing heads this side of a big block or a hemi - don't ya think those stacked on top of a windsor would make a impressive motor
http://www.chiheads.com/main.html

 

also check out the clevor in this mustang http://www.chiheads.com/dynotest_03.html

 

Impressive? YES

A better breathing motor than it would be with any good flowing set of aftermarket Windsor heads? NO

Since the point behind BOSS motors (Clevor) was to get the best airflow.....

Of course if someone WANTS to build a BOSS then a set of 3V on a 351 Windsor would be cool.