There are 3- different TY395 Engines, TY395I, TY395E-3, TY395 E-1,the parts are not all the same.You need to confirm Which engine you have first,I would also check the old Head gasket vs the new one very close, there is a difference.This same problem comes up with this engine SL3105 BT, and the SL3105 ABT both use some of the same parts but not all
You might have got a EPA head and a Non EPA block,or if your mechanic is confident the head is the correct one, get the parts supplier to send you a exhaust manifold
Tommy
Affordable Tractor Sales
“Your Jinma Parts Superstore”
http://www.affordabletractorsalesco.com