so i got a b16/b18c5 jrsc, i need the intake manifold modified to fit the gsr head, i keep getting mixed information on this, some say its super easy, others say its not even worth the trouble so how hard would it be

the manifold i have is like this

and needs to be converted to this


so how hard would it be for a machine shop to do something like this, and how much do you think it would cost?

 

i wouldn't say i'm an expert, but you would have to cut the original flange off and weld on the gsr.

 

This has been covered.....

Its the same manifold, it simply needs re-drilled. Jackson Racing used the same manifold for all b-series heads. Buy a gasket and take it to any machine shop, or send it to me I will have it done for you.