**600hp sbm block limit? Or is it bs!!**

made a 360 .030 over maybe 15 years ago
i RAN THIS ENGINE HARD I meen really hard

after 8 years I decided it was time to built a 408
BUT the girls friend I hade at this time was yelling at me
its still running and run strong so why would you
built an other engine

so I decide to put juice on it 125 shot
so I let you decide how much horses it made

360 .030 over
mp .590 cam 265 dur
crane 1.6 roller rocker
KB 191 piston
j heads fully ported 252 cfm @ .500 of lift
12.33 cr.
holley strip dominator
800 cfm carb

and I hade 125 shot of nitrous on top of it
ran like that for at least 8 years before running the juice

blew the heads gasket twice (felpro) WITH THE NITROUS
install oring and sce copper head hasket

ran the juice for 4 years even on the street (stupidity)
I sold this engine to my best friend
told him it need to be refresh but he decide
it was running fine so he kept it like that
he still run that engine for the last 4 years

now I run a 408 for the last 4 years
Im please with it it run great on premium fuel

best so far is 10.79 @ 129 mph in a 3200 pounds duster

and it will get nitrous thats for sure

Bob