Big injector heads

Jerry He

Member
Did case ever use the big screw in injectors in a 451 head or an engine with that bore?
I am looking to stroke a 451 bore to make a 504. I need a head that will use the big screw in injectors.
 
I do not think CASE ever equipped a 451 with the large injectors. The 504 heads do bolt on I think (never tried) but the larger valves in those heads I suppose will hit the sleeves. The tractor pulling guys more than likely know how to correct a problem like that. Rod.
 
Thanks. Need to stay at a stock 504 CI . You are right, the 504 head bolts on a 451 and the valves hit. I need the big injectors. Not sure if there is enough meat there to bore out 451 heads to big injector. Other choice is to move the valves closer on the 504 heads. Stroking = more torque and a better rod length to stroke ratio.
 

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