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Rich Biebel · 10-10-2019, 01:45 PM

LT-1 blocks have a rep for being poor on ring seal on the center 4
cylinders even after filling the water jackets.

I was told that by Woodro Josey when I built one and after racing it some and leakdown testing it, that is exactly what I found...

That block was filled and at .040" over...a 2 bolt main block...

10-10-2019, 01:45 PM	#13
Rich Biebel VIP Member Join Date: Jun 2007 Location: Northern New Jersey suburbs Posts: 2,315 Likes: 25 Liked 544 Times in 213 Posts	Re: 95 lt1 block? LT-1 blocks have a rep for being poor on ring seal on the center 4 cylinders even after filling the water jackets. I was told that by Woodro Josey when I built one and after racing it some and leakdown testing it, that is exactly what I found... That block was filled and at .040" over...a 2 bolt main block... __________________ Rich Biebel S/C 1479 Stock 147R