53 Series Detroit boost
#1
#3
the compression ratio is higher on the naturally aspirated engines its around 21 to 1 for the natural the turbo motors run about a 17 to 1 so if you run too much boost its easy to fry a set of rings id say you could handle 10 to 15 lbs but thats just a guess the pistons would help alot and detroits had different valves for turbo and non-turbo engines and a bypass blower would help efficiantly greatly
#4
#5
i dont think the heads are different just the valves but i guess putting on new heads is easier than swapping vlaves out you have a very cool build planned im interested in seeing how this turns out i have an old neighbor who is a detroit fanatic and he got me into them not only is he crazy about them but hes very knowledgable with them and he even has a frankenstein truck hes building with a 4-53. its a natural 4-53 so hell be doing about the same thing both your options sound very viable keep the forums updated
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