# crank help asap ins

**URL:** <https://forums.speedlife.net/t/crank-help-asap-ins/188512>\
**Category:** PittSpeed Automotive\
**Created:** [March 10, 2007, 7:23pm UTC](https://forums.speedlife.net/t/crank-help-asap-ins/188512 "2007-03-10T19:23:30Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![eurodad](https://yyz2.discourse-cdn.com/flex034/user_avatar/forums.speedlife.net/eurodad/32/5988_2.png) [@eurodad](https://forums.speedlife.net/u/eurodad)\
**Post date:** [March 11, 2007, 8:10am UTC](https://forums.speedlife.net/t/crank-help-asap-ins/188512/8 "2007-03-11T08:10:47Z")

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> [@OFFICIAL Buffalo Sabres Thread](https://forums.speedlife.net/t/official-buffalo-sabres-thread/25170/5015):
>
> The rest of the story.
> 
> This is a 400 sbc that neonracer bought off of eurodad. Ended up needing a new crank. So he bought a new Scat. We have found the following issues,
> 
> 1. some of the rod clearances on the counterweights are not fully ground as deep as the stock crank was.
> 
> 2. there is NO side to side rod clearance on the 3-4 journal. The 7-8 and 5-6 journals only have about .007 inch of side to side clearance. My believe is that the no side to side clearance is what is causing the lock up.
> 
> I always turn the motor after each piston goes in. And we have check clearance on the bearings and they are actually a bit loose. But still within reason.
> 
> So for now it looks like some machine work to the rods to get some side to side clearance.

:doh: should have just bought my 350.

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