Brandt If you look around you will find more 440's than 413's hiding under that protective tarp. If you find either engine your heads, water pump and exhaust manifolds from the 383 will all bolt on to the 413 or 440. The 413 - 426 Wedge and 440's all use the same intake manifold size. The 413 and early 440's used the same manifold. The later 440's had a design change that helped mid to top end rpm's. The best performing manifold for the buck is any of the factory OEM single four barrel units. Rodger & Gabby Colo Spgs '47 De Soto Custom w/Fluid Drive & passenger door mounted swamp cooler '63 Le Baron w/F-Sweep trunk lid & std A/C '66 Le Baron w/dual A/C & reverbed AM/FM '70 Overlander - InterNational '77 D150 w/360, NP 4 Spd, 12 Bolt Axle, OEM Buckets & etc ----------------- http://www.imperialclub.com ----------------- This message was sent to you by the Imperial Mailing List. Please reply to mailing-list@xxxxxxxxxxxxxxxx and your response will be shared with everyone. Private messages (and attachments) for the Administrators should be sent to webmaster@xxxxxxxxxxxxxxxx To UN-SUBSCRIBE, go to http://imperialclub.com/unsubscribe.htm