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If a guy were to change thrust bearings, con rod bearings, and main bearings to aftermarket ones, will the stock crankshaft SAFELY and RELIABLY handle 400-450 horsepower? It's for a S13 Redtop SR20.
 

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Mekanik22 said:
If a guy were to change thrust bearings, con rod bearings, and main bearings to aftermarket ones, will the stock crankshaft SAFELY and RELIABLY handle 400-450 horsepower? It's for a S13 Redtop SR20.
yup,dont see why not if you use the right oil :thumbup:
 

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Crankshaft

Mekanik22 said:
If a guy were to change thrust bearings, con rod bearings, and main bearings to aftermarket ones, will the stock crankshaft SAFELY and RELIABLY handle 400-450 horsepower? It's for a S13 Redtop SR20.
Hello you need to consider replacing the conrods and pistons and balance the crankshaft to achive 400bhp. :thumbup:
 

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Torqe Specifications

Joel said:
yep but get it balanced in the rebuild. You could cryo treat it too
Good day joel could you help me find torque specs for my ca18 engine rebuild please im only new to the forum.
 

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20psi 240sx said:
the stock crank is probably good for 800-1000hp. modern 4 cyl cranks hardly ever fail. are you building a 450hp motor? i would just do pistons and rods. maybe not even that much.
I would :) :thumbup:
 
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