why can't you use the 4.2L exaust manifold with the 4.0L head? [Archive]


Pirate4x4.Com > Brand Specific Tech > Jeep - Hardcore Tech > why can't you use the 4.2L exaust manifold with the 4.0L head? PDA : why can't you use the 4.2L exaust manifold with the 4.0L head? YJ4LIFE 05-01-2002, 04:43 PM why? ALL4ROCKS 05-01-2002, 10:21 PM Because the exhaust ports are different. Steve N 05-01-2002, 10:52 PM you can if you got a 4.0 head:flipoff2: