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Green Machine · 04-04-2009, 10:57 PM

Thats just normal casting "flash" nothing to worry about. If you ever have the heads off, you can clean that up with a die grinder if you want it to look better.

04-04-2009, 10:57 PM	#6
Green Machine Senior Member Join Date: Jul 2004 Location: Estherville, Iowa Posts: 3,371	Re: Are these holes bad? Thats just normal casting "flash" nothing to worry about. If you ever have the heads off, you can clean that up with a die grinder if you want it to look better. __________________ 1968 C10 307 3spd Long Fleet ------ http://67-72chevytrucks.com/vboard/s...d.php?t=201103 1970 C10 305 Super T10 Long Fleet --- http://67-72chevytrucks.com/vboard/s...d.php?t=202285 1971 C20 383 TH350 Dana Posi ----- http://67-72chevytrucks.com/vboard/s...d.php?t=206894 2001 GMC Sierra 1500 C3 6.0