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Chipper Chapman · 08-08-2010, 07:24 PM

1976-77 350/275 ihra /287nhra

1976 is allowed 993, 882, 624

1977 is allowed 882, 624

There are others listed, but i know these are the common ones. I've always heard that 882 and 624 are virtually identical, but that 993 were a better head. Anyone know for sure?

08-08-2010, 07:24 PM	#1
Chipper Chapman Member Join Date: Jan 2004 Location: Belmont N.S. Canada Posts: 451 Likes: 210 Liked 141 Times in 63 Posts	SBC Heads 993, 882, 0r 624? 1976-77 350/275 ihra /287nhra 1976 is allowed 993, 882, 624 1977 is allowed 882, 624 There are others listed, but i know these are the common ones. I've always heard that 882 and 624 are virtually identical, but that 993 were a better head. Anyone know for sure?