New Manifolds - Trouble aligning

[ChrisD]

Guys, I have new intake and exhaust manifolds that I am trying to install on my 1950 CJ3A. The manifolds will not align flat to the block once I bolt them together. I have already cracked one intake manifold because I did not check it before bolting it up.

Is there a trick I am missing??

Thanks,
Chris

[Oilleaker1]

There are 4 bolts where the intake and exhaust bolt together with a gasket. Can you loosen them and then bolt the pair up flat on the engine, then tighten the 4 ?  Also where the two bridge on the lower bolt line, a heavy thick washer is used there. If this fails, then you need to have the surface planed or milled. John

[ChrisD]

John, thanks - I did not know about the thick washer. I will loosen the bolts and see if I can bolt up to the engine. I will probably be visiting the machine shop this week to get it planed. 

[ChrisD]

Took the manifolds to my local machine shop. They had to drill out the holes where they bolt together and then re-surfaced it flat.