351 vs 302 valve covers

[NM Bronco]

I am swapping in a crate 351W. Will my old 302 valve covers fit the new engine? Sure would help reduce the interference with the very tall valve covers. Thanks.

 

[Explorer]

If you have roller rockers they will be too short.

 

[wildbill]

%) %) %) Stock yes they will fit. As was said if you have roller rockers you will need to eather buy spacers or get the tall valve covers. Good luck and have fun.%) %) %) Bill ;D %)

 

[gibsonplayer45]

Yea i had roller rockers and we had to grind down the insides of the covers. or you can stack 2 seals! Be careful!

 

[76 bronco J]

>>> stud mount roller rockers pretty much always require taller valve covers ,but lots of the pedestal mount versions will clear shorter valve covers with slight mods to the inner baffles or grinding extra flashing on some of the aftermarket aluminum valve covers ..... a factory example is the 1993-1995 mustang cobras that came stock with Crane Cams roller rockers & short valve covers..................

 

[Broncobowsher]

My stock valve covers just slightly interfered with the roller rockers. I hace to cave in the baffles a little then all was fine. Been running 10 years that way

 

[gibsonplayer45]

But you will deff know if they are knocking on the valve covers...very annoying and mine were very loud till i fixed it!