Narrowing down my new LS engine combo..

[Steve1968LS2]

Originally Posted by DFRESH

Steve, what kind of RPM's will the motor be seeing---with those cam specs---looks to be around 6600 or so? Piston speed with that longer rod should be a consideration---but maybe I am still stuck in the old SBC world. I think you are right---clearance on you pan could be an issue with that size rod---didn't you have to clearance it once already for the current motor due to same issue?

I think my peak power is around 6,300 (now) but it still makes good power even up over 6,700.

My rev limiter is set right now at 6,900.. mostly so I can hold a bit longer before shifting if I need to.

Yea, the rods slapped the stock f-bod Canton pan so we welded in a section for more clearance. That's why I want to stay with a 4" stroke and know that even adding .125 could mean more pan mods and maybe mods to the windage tray.

You can see the 402 build (and the clearance issue) in the story here:
http://www.camaroperformers.com/cama...ade/index.html

[tobenk]

Steve i would stay with the 4" stroke then just less hassle. No pans modes
and such. I think u good use a little more tq. U said the car could take a little more power but i think torque good help u in the autocross better than horsepower. Either way both motors sound like good combos.