Don:
What if the camshaft timing was incorrect causing valve to piston interference?
Ken 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf Of John Rodgers
Sent: Thursday, December 31, 2015 5:30 AM
To: vanagon@GERRY.VANAGON.COM
Subject: [VANAGON] New engine won't turn - 2.1 WBX

Engine turns beautifully by hand on the bench. Put the new AMC hesds on with all parts assembled, torque them down,  and the beenengine won't turn.

Removed the heads twice, still no joy. Sounds like a valve stuck in a guide to me.

Any body else ever had this problem or got an educated opinion?

Thanks.

John