Posted by rickyracer (IP: 206.133.238.246) on October 09, 2000 at 13:05:26:
In Reply to: 408 posted by Fastman on October 09, 2000 at 02:39:46:
there is a company that converts the two bolt block to a four bolt, Stud girdle and studs should hold a 650hp application. 351W block is pretty strong already. As far as the rpm limit on a forges steel crank, most applications, about 9000 rpms on a good one 7500 on a average one. Rods and piston bosses are your weak spots. Rods will go away first. The big thing people forget is, "A chain is only as strong as it's weakest link". Conrods bolts have to be up to stress & RPMs or they'll destroy everything. People think they can save money here and they're history.
As far as the cam, etc combo, what is your intented usage? That's the main question.
: I want some suggestions. I have considerd a 5.4 engine in the far future(because it is very expensive right now). But I am considering a 408 for the very near future as a substitute for awhile. Now, will a production 351W hold up to 650 hp with a stud girdle and a few things like that? I don't want to buy a Nascar block. Also, has anyone here done this kind of stroker kit, because I am wondering what combinations you have tried for cam, comp., and carb. set-ups for the maximum power output. My 302 is nice, but I always have the urge for more power. What kind of RPM limits can a forged steel crank 408 handle? Thanks for any info.