Marc, Casting numbers (on the part) and part numbers (in the parts book) are often different. In the case of your heads, casting number 1554132 is the number assigned to the raw casting. The dash 3 number is probably a mold cavity number and not important. Once the casting is machined and valves installed, assembly part number 1554131 is assigned. Since casting and assembly part numbers are often assigned at the same time, they are often consecutive or very close. But not always. Sometimes a casting can be assembled or machined in more than one way, resulting in multiple assemble part numbers for one casting number. For more casting numbers, check out: http://www.thehemi.com/castings.php You have the correct parts. Dave Homstad 56 Dodge D500 -----Original Message----- From: Forward Look Mopar Discussion List [mailto:L-FORWARDLOOK@xxxxxxxxxxxxx]On Behalf Of Marc Bradley Sent: Friday, May 02, 2003 9:31 PM To: L-FORWARDLOOK@xxxxxxxxxxxxx Subject: [FWDLK] A hemi head question HELP Hello all I was told by the seller that the pair of head I purchased from him are for a 270 dodge they have a casting # of 1554132-3 on both heads. and when I get home I got a surprise when I check the 55 dodge parts book and I see 1554131 so can any one tell me what part # 1554132-3 is for and if they will or will not work on my 270 dodge. thank for the help MARC B 1955 DODGE ROYAL LANCER CONVERTIBLE 1955 DODGE ROYAL HARD TOP -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 2003 Calendar voting results and ordering information is online! Please visit: http://www.forwardlook.net/calendar2003 for more information.
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