Cylinder wall thickness

Paul Precht · 12-21-2017, 11:45 PM

The only blocks that are that are thick are the 413 industrial and motorhome, most 440s are less than .175" before boring and 700HP would be about the safe limit IMO. The aftermarket blocks are the way to go if you can get one. The 400 blocks are a bit stronger in the web area and more rigid due to the shorter cylinder length. A 400 block filled Halco machine grout and Pro-Gram Engineering main caps would be a good start.

12-21-2017, 11:45 PM	#4
Paul Precht Senior Member Join Date: Dec 2001 Location: Elysburg, Pa Posts: 730 Likes: 353 Liked 309 Times in 118 Posts	Re: Cylinder wall thickness The only blocks that are that are thick are the 413 industrial and motorhome, most 440s are less than .175" before boring and 700HP would be about the safe limit IMO. The aftermarket blocks are the way to go if you can get one. The 400 blocks are a bit stronger in the web area and more rigid due to the shorter cylinder length. A 400 block filled Halco machine grout and Pro-Gram Engineering main caps would be a good start.