Engine help

[robert912005]

I just got a 351 winsdor out of a 70's LTD... Are the rocker arms supposed to have studs or bolts?

 

[rbohm]

generally they use a stud mount rocker arm, though someone could have replaced the heads with ones that use bolt down rocker arms.

 

[woodsnake]

What are your plans for the engine?

 

[brianj5600]

It depends an the year. Prior to 78 uses studs and rail rockers. 78+ uses bolt down rockers with pivot guided rockers. If they are 77 or newer the have 1.78" intake valves, 1.45" exhaust valves and big 69cc chambers. 69-76 uses 1.84 in and 1.54 ex valves with 61cc chanbers.