Hi,
I asked earlier about using 351W heads on a 289 - or maybe a 331 stroker build.
The heads will be rebuild with screw-in rocker studs and guide plates. But I would like to keep my original blue 1968 stamped steel valve covers - is it posible to fit roller rockers underneath theese valve covers? Do you know if there are some rocker arms which are more compact in size and therefore a better fit? Is the biggest problem size-wise the adjuster-nut?
2nd Q: I have seen that both 7/16" and 3/8" screw-in rocker studs are available - base size on both are 7/16". Which is the best and will it make a difference if the engine is not going to spin all the way to 7000 rpm?
Mustang greetings from Denmark
Bebob