StreetSilverado

iTrader: (17)

Anyone else run this kind of CI?

6.0L block, 4.125 crank, .060 bore? Any luck for a NA set-up? Looking to go this route for a bracket car and index racing.

cbra-klla

iTrader: (52)

If it is just index and bracket racing why run so big of a bore and stroke? I'd save some to bore later on the next rebuild.

Pro Stock John

iTrader: (34)

I ran something like that about 9 years ago, an ARE 422ci iron block. 4.060 bore and 4.080 stroke or something like that. Went 11.02@123 @ 3600 raceweight. With what I know today I could get that same car to go about 10.6 with the same level of streetability I had back then.

Bryan @ Speed Inc.

iTrader: (19)

if you wanted a combo like that, and were using it for bracket racing - i'd just use a .030" over bore. displacement would end up at 421 cubic inches.

there are a handful of guys running 9's on motor with that block/bore/stroke combo.

StreetSilverado

iTrader: (17)

Can you give me more info on a 421 build? cam, heads, intake, gears, converter, etc?

StreetSilverado

iTrader: (17)

What issue will I have with a 4.125 stroke .030 bore on a little nitrous? 150-200shot.