trying to find out the year of manu of this 455
#1
trying to find out the year of manu of this 455
casting # 396021F
heads # J
oil fill pipe # 30714444
on rear of block by crank # 68 F3
intake man # 412753
its my understanding that being an "F" cast instead of a "Fa" cast that its a 68-71 block. does the # on the fill pipe mean 3-olds, 0-1970, 714444-serial#? what does the 3/4" tall 68 F3 mean on the rear?
and any other useful info such as what years did/didnt have J heads, if the intake number means anything, etc. this motor has been built before and in several cars so im trying to identify what all it is and isnt so i decide what parts to keep or replace and the gaskets ill be needing. thanks
heads # J
oil fill pipe # 30714444
on rear of block by crank # 68 F3
intake man # 412753
its my understanding that being an "F" cast instead of a "Fa" cast that its a 68-71 block. does the # on the fill pipe mean 3-olds, 0-1970, 714444-serial#? what does the 3/4" tall 68 F3 mean on the rear?
and any other useful info such as what years did/didnt have J heads, if the intake number means anything, etc. this motor has been built before and in several cars so im trying to identify what all it is and isnt so i decide what parts to keep or replace and the gaskets ill be needing. thanks
#2
casting # 396021F
heads # J
oil fill pipe # 30714444
on rear of block by crank # 68 F3
intake man # 412753
its my understanding that being an "F" cast instead of a "Fa" cast that its a 68-71 block. does the # on the fill pipe mean 3-olds, 0-1970, 714444-serial#? what does the 3/4" tall 68 F3 mean on the rear?
and any other useful info such as what years did/didnt have J heads, if the intake number means anything, etc. this motor has been built before and in several cars so im trying to identify what all it is and isnt so i decide what parts to keep or replace and the gaskets ill be needing. thanks
heads # J
oil fill pipe # 30714444
on rear of block by crank # 68 F3
intake man # 412753
its my understanding that being an "F" cast instead of a "Fa" cast that its a 68-71 block. does the # on the fill pipe mean 3-olds, 0-1970, 714444-serial#? what does the 3/4" tall 68 F3 mean on the rear?
and any other useful info such as what years did/didnt have J heads, if the intake number means anything, etc. this motor has been built before and in several cars so im trying to identify what all it is and isnt so i decide what parts to keep or replace and the gaskets ill be needing. thanks
#4
the gasket company that im ordering from wants to know if the engine is 68-72 or 73-76. is this because the engines made before the EGR era have thicker cast blocks? or is it strictly an intake thing because of the changes made to the heads in 73 that might affect the valley pan gasket?
should i order a kit for a 68-72 because of my F block or order a 73-76 kit because of my later style J heads?
should i order a kit for a 68-72 because of my F block or order a 73-76 kit because of my later style J heads?
#5
the gasket company that im ordering from wants to know if the engine is 68-72 or 73-76. is this because the engines made before the EGR era have thicker cast blocks? or is it strictly an intake thing because of the changes made to the heads in 73 that might affect the valley pan gasket?
should i order a kit for a 68-72 because of my F block or order a 73-76 kit because of my later style J heads?
should i order a kit for a 68-72 because of my F block or order a 73-76 kit because of my later style J heads?
MS96004 (front is to the left):
MS96015 (front is to the right):
#7
Well, FelPro does list two different gaskets, MS96004 for the early motors and MS96015 for the later ones. I don't know if these photos are accurate (and note that the one is flipped around from the other, but the only difference seems to be the drain hole in the very middle of the valley pan and an additional formed area next to it. Neither of these features will affect sealing of the gasket or fit in the block. Frankly, I suspect either one will be fine.
MS96004 (front is to the left):
MS96015 (front is to the right):
MS96004 (front is to the left):
MS96015 (front is to the right):
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