305 blocks- whats the best one to use ?

REGGIE WINKLES · 08-19-2007, 09:52 AM

Kenny, I use an early 305 block (2-piece rear seal) in my stocker. I have the block filled
with Hard-Blok and have never had any problems with cracks. I am curious as to why the
block would crack up there at the top. Did your block have any core shift? I have heard
GM has a "Bow-Tie" 305 block but, I have never seen one. If this is the first incident with
cracking I'd say you just got a bad core. That's my two cents worth.

Reggie Winkles
4102 J/Stick

08-19-2007, 09:52 AM	#2
REGGIE WINKLES Member Join Date: Jun 2007 Location: St. Augustine, Fla. Posts: 229 Likes: 571 Liked 39 Times in 9 Posts	Re: 305 blocks- whats the best one to use ? Kenny, I use an early 305 block (2-piece rear seal) in my stocker. I have the block filled with Hard-Blok and have never had any problems with cracks. I am curious as to why the block would crack up there at the top. Did your block have any core shift? I have heard GM has a "Bow-Tie" 305 block but, I have never seen one. If this is the first incident with cracking I'd say you just got a bad core. That's my two cents worth. Reggie Winkles 4102 J/Stick

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