Quote: I am not Jerry, but 6.1 block I bought came fully machined from dodge dealer.
Thanks Rick. Is the 6.1 a direct replacement for a 5.7 with different pistons, or what else changes? I have an early 5.7 now, but have a good stroker crank and rods.
Same stroke 3.58. 6.1 is forged. Bores are different 3.92 for the 5.7 and 4.55 iirc for the 6.1. The 6.1 has floating piston pin.
