use the 230 casting B-400 Block
it's a whole lot stronger/thicker in the webbing
than any RB 413-440 cast iron OE block, will ever be
look at a couple of the
@bobtile
posts about his stock 440 stroke 3.75in
mid-hi 9 second car 67 Barracuda coupe drag car
beating the **** out of the caps & mains or cranks
getting to the 700+ hp level
isn't all that hard, even with a stock stroke 440
how much of a budget do you have ?
(
that is usually a huge part of the problems, or paying a professional
engine builder/knowledge for his/their time & expertise)
people usually cheap out somewhere & wonder why ?
you do need some really good heads &/or a power adder
BBM are notorious for have a huge chokepoint
that is the cylinder heads suited for a sb on a bb
Especially if you add a bunch of cid, it becomes easier
& more complicated too
Need some really good 225+cc @ 330cfm (+) professionally ported heads,
(
240cc or 270cc even better, but 2 times as much $$ too,
then special parts or MW ports/intake etc. starts to get involved)
an adequate cam, for your needs,
solid roller or mechanical Flat tappet is easiest, still can fail
(
doesn't mean you can't do it with a hydraulic, FT or Roller
if it's big enough cid (bigger is easier) or good enough flowing components)
enough ignition, enough induction, carb or EFI or even mechanical FI
or turbo'd or roots Blown or centrifugal blower
if that floats your boat,
(
but it's more complicated but easy enough too)
& exhaust/headers to handle all the air in & out etc.
with a blown (
especially roots blown) application pray it doesn't detonate
better keep it cool, hotter ir gets the hotter the air charge gets & kills power
you could go to E85 or methanol not available in many areas
but it will help the air charge cooling & detonation problems
will it live with a stock OE block ?
or a stock crank ?
or stock caps ?
with the right valve-springs to get it to the proper rpm range
with just a bunch of bolt-on hardware
'sure' but for how long at that level ?
how many times do you run it at wide-open throttle
will it see a lot of 7,000 rpm runs
or is it all about a dyno sheet & bragging rights
to say; "it makes this
X00 much horsepower
when
if it's more of a street brawler,
(?)
not really a dedicated drag car (?)
& make the car work better, lil' steeper gears, loser converter (
than stk)
better & freer moving suspension, lighter car etc.
(
it's all about power to weight ratios)
it's better to build "torque at a lower rpm" to help move a heavy car
not have to run such steep gears, can't hardly be hwy driven
or a need for a 5500+rpm stall converter (
cooking the trans)
getting that # high in at like 3800-4500, & still be a usable 600+ HP
then build an engine that will rarely ever see that 7,000+ rpm #
to get that 700-750hp (
just for bragging rights)
be ill-performing at lower rpm levels, because it's not built for that
I guess it all depends on the end usage
& how much you want to spend, power cost $$$
how much power & money you willing to spend to get it
good luck & have fun
