# Orr89rocz's 1989 Camaro Iroc-z 5.7L **URL:** \ **Category:** Builds\ **Created:** [March 12, 2007, 9:09pm UTC](https://forums.speedlife.net/t/orr89roczs-1989-camaro-iroc-z-5-7l/188547 "2007-03-12T21:09:21Z")\ **Posts on this page:** 1\ **Showing post:** 296
**Author:** ![SixSpeed454SS](https://avatars.discourse-cdn.com/v4/letter/s/e19adc/32.png) [@SixSpeed454SS](https://forums.speedlife.net/u/SixSpeed454SS)\ **Post date:** [July 7, 2008, 1:04pm UTC](https://forums.speedlife.net/t/orr89roczs-1989-camaro-iroc-z-5-7l/188547/296 "2008-07-07T13:04:07Z")
> [@Who needs a winter car!!](https://forums.speedlife.net/t/who-needs-a-winter-car/37053/10): > > i did and it still got loose somehow. I tightened it up good now. hopefully it dont happen again It prolly came loose because your cam has way more lift than your original setup. I built a big block 2 years ago & had the stock rockers come loose twice while test driving the truck (2 different cylinders within about 100 miles of each other). The cam was a mild cam, but the stock rocker nuts found a way to come loose. I put polylocks on it & never had a problem. It’s cheap insurance (especially with your setup - soo much work to take the intake off, if a pushrod falls out of position). It could cause damage as well. I think polylocks are about $35-45 for a set. --- _[View the full topic](https://forums.speedlife.net/t/orr89roczs-1989-camaro-iroc-z-5-7l/188547)._