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SSDiv6 · 04-23-2007, 09:49 AM

Yes, he does have to dril the steam holes. I would rather build a 383 based on a 350 block. The 400 blocks are known to crack in the valley area when you strat to make power wtih the OEM block. Seen this happen several times.

04-23-2007, 09:49 AM	#2
SSDiv6 VIP Member Join Date: Feb 2003 Location: Glendale, Arizona Posts: 3,044 Likes: 712 Liked 1,583 Times in 582 Posts	Yes, he does have to dril the steam holes. I would rather build a 383 based on a 350 block. The 400 blocks are known to crack in the valley area when you strat to make power wtih the OEM block. Seen this happen several times.