427 block questions
08-06-2019, 04:02 AM
#1
427 block questions Hey guys, so I've researched as much as I can on the physical power limit on aluminum blocks and I've found mixed answers depending on the source.
I have a Texas Speed 427 aluminum block with Darton iron sleeves, 1/2" head studs, TSP 4340 forged crank, Wiseco ArmorX pistons, and TSP super I-beam rods. I'm currently making 820whp out of it but I'm looking to go F1X or twins.
I'm curious on the limit of this block with the sleeves in it. I've heard cast aluminum starts to shake molecularly somewhere between 1200-1400whp, but I've also heard of guys making over 1600whp on some non-race prepped sleeved alum blocks. What would be the safe limit for NOT putting a rod through my hood? - Thanks
I have a Texas Speed 427 aluminum block with Darton iron sleeves, 1/2" head studs, TSP 4340 forged crank, Wiseco ArmorX pistons, and TSP super I-beam rods. I'm currently making 820whp out of it but I'm looking to go F1X or twins.
I'm curious on the limit of this block with the sleeves in it. I've heard cast aluminum starts to shake molecularly somewhere between 1200-1400whp, but I've also heard of guys making over 1600whp on some non-race prepped sleeved alum blocks. What would be the safe limit for NOT putting a rod through my hood? - Thanks
