Correct exhaust manifolds for a 68 383 H code

[Sixt8Chrgr]

Would my car as described above come from the factory with HP manifolds or low HP manifolds?

Thanks

[tan top]

H code would have  HP manifolds   , as far as i know  !!   same as on the  1968 & 1969  440 magnum  !!

casting  numbers    

Left = 2806900

right = 2843992  

[Dans 68]

Would my car as described above come from the factory with HP manifolds or low HP manifolds?

Thanks

Yes, HP manifolds (same as the 440's as already stated.) 

Dan

[Sixt8Chrgr]

Thanks guys.