I was going through the archives a couple of weeks ago and stumbled upon a post where people were talking about a magazine article, (car craft, hot rod, I'm not sure) in which they made 460 horses out of a SB 400 with vortec cylinder heads. I didn't see any info about the cam, intake, carb in the post. I was wondering if anyone knows what they did to get that kind of power with the vortec heads. Thanks alot for any help

Ryan

 

shouldn't be hard to do it's only little more than 1 hp per cubic inch. i tihnk you'd want forged parts, maybe longer rods

 

It's a no-brainer. stock 400 short block, those heads, a Comp XE268H cam, 1.5 self-aligning rockers, Performer RPM, Holley or Demon 750 or 850, large-tube (1¾") headers.

 

They only had to use an XE268 to get that much power? I thought that cam would only run up to about 5000-5200 RPM on a 400 c.i. If that's all the cam they needed, that thing must have been a sick torque monster! Thanks for your help!

Ryan