On/off center

wahoo50

Member
Joined
Sep 4, 2002
Can someone share the difference between Stage II on center vs. off center. Which is more desirable? How much horsepower can a mild Stage II engine produce at the flywheel?
 
Offcenter can take some stock parts, but are sometimes harder to find parts for. Oncenter takes a special intake, and won't use stock parts. Stage parts in gereral are pretty tough to find, and command a lot of money. A mild stage 2 off or oncenter will make pretty much whatever kind of power you are looking for. A search on this will more than likely answer all your questions, as this comes up a lot.:cool:
 
Like what Stu said. If you are not stuck on running a class or something, there really isn't a draw back on running a on-center. The intakes are out there and if you don't have a ported stock intake, you won't be that far off $$ wise for a on-center intake. There is a lot more inexpensive parts to build a on-center engine that will offset the cost of the intake. I would look for a wet sump on-center block, you will save the $$ on plumbing up a external pump for starters. If you build a off-center engine, that will really narrow the search if you ever need another block for one reason or another. The off center stuff really demands top dollar.

Any S2 engine with forged internals can pretty much make over 1000 HP, depending on cam/heads/turbo so a mild build will not even come close to that. You can also use some cranks that have been turned down to BBC or SBC rod jounals and that will save you some big $$ if you are not looking to make big power.
 
Originally posted by wahoo50
Can someone share the difference between Stage II on center vs. off center. Which is more desirable? How much horsepower can a mild Stage II engine produce at the flywheel?

In addition to the other good comments, my understanding is that the on centre block was designed to eliminate the shear load from the rods that the off centre block design imposes.

Perhaps the Stage 2 gurus can comment on this ??.

George
 
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