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Alan Roehrich · 11-28-2007, 10:51 PM

Provided it passes a sonic test, you can go 0.125" over, or 4.375".

I have put as much as a 4.5" stroke in one. It is very tight, and you have to be careful, grinding for rod clearance can break into the main oil gallery.

For drag racing I always pour the block up to the water pump holes.

11-28-2007, 10:51 PM	#2
Alan Roehrich Veteran Member Join Date: May 2006 Location: Murfreesboro TN Posts: 5,113 Likes: 1,571 Liked 1,821 Times in 413 Posts	Re: Chevrolet Tall Deck BBC ? Provided it passes a sonic test, you can go 0.125" over, or 4.375". I have put as much as a 4.5" stroke in one. It is very tight, and you have to be careful, grinding for rod clearance can break into the main oil gallery. For drag racing I always pour the block up to the water pump holes. __________________ Alan Roehrich 212A G/S