Gen 3 Hemi Swap time!!!

turbofreek said

sorry but it has been proven time and time again. 5.7 block walls typically .280 thick and some are more. 6.1 blocks have been as thin that i can recall off my head at .180 with stock bore diameter. nothing else matters if the piston shoves itself through the paper cylinder walls. not the increased bulk heads or main webbings nada. this is why i have a 5.7 block. there are even 4" bore 5.7 blocks running around flawlessly. so consider that as an option. i know i was for quite some time but i want the thicker walls more than tiny amount of bore.

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But where is this info coming from? Where, besides internet chatter. I've never seen it in print anywhere. Some type of reasonably bonafide proof. If both blocks start out new with the same wall thickness before factory machining and the 6.1 gets bored an additional .020 or .030 (I forget what the number is) more than a 5.7, then I guess the 6.1 would net out with thinner walls. Where is this information in print though?

For that matter, I think my Chrysler literature recommends not boring EITHER of these blocks more than .020 . I took this as they both have about the same wall thickness with their factory bores. I'm happy to be convinced otherwise with the right proof.