Visit The Dirt Forum for More Information

Author Topic:   Will a stock bottom end live for this?
Dirt Forum Racer

Total posts: 82
posted November 10, 2005 04:33 AM  
Will a stock cast crank and stock rods live in a 350 with 10:1 compression spinning between 5~6000rpms? I would like to get about 700 miles on it during the season before freshening. It seems pretty mild to me, but maybe stock stuff is weaker then I thought?

Dirt Full Roller

Total posts: 48
posted November 10, 2005 05:35 AM  
If assembled correctly it should have no problem, but I would definitely have it balanced. I ran a stock crank and rods with TRW forged pistons for 2 seasons.

Dirt Full Roller

Total posts: 37
posted November 10, 2005 06:06 AM  
Yep i agree if ya get the rotating assembley balanced and your clearences are rite you wont have any problems

Dirt Freak

Total posts: 238
posted November 10, 2005 06:17 AM  
I ran about the same thing at 6500-7200 all year, with no problem. Spent the $150 to have it balanced.

Dirt Forum Racer

Total posts: 82
posted November 10, 2005 12:34 PM  
Thanks guys - always good to have that sanity check!

Dirt Roller

Total posts: 18
posted November 10, 2005 04:47 PM  
use good bolts too and shouln't have any prob.

Dirt Forum Champ
Total posts: 5390
posted November 10, 2005 05:37 PM  
junk the cast pistons and go with a set of forged. 700 miles under racing conditions on cast pistons is risky. get a good set of valve springs and keep it under 6000 rpm and you should be ok.

Back to the Archives