The block may be a little thin on the cylinder walls, it may need a better cooling system also.
the only way to find out is sonic test the block or change the cooling system
I like to see 140 F coming out of the staging lines and around 160 to 180 F on the starting line, 210 to 230 F on the return road in the 1/4 mile
My car does not have a regular radiator, it has two small oil coolers instead with the coolant running through them and it runs on E85 also with a stock 400 block so keep that in mind when comparing your deal to any other deal