Harland Sharp RR's
10-05-2004, 12:21 AM
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Harland Sharp RR's I am going to install my 1.7 Harland Sharp roller rockers tomorrow night and had a few questions. Can I just R+R them like stockers and torque to 22 ft lbs? I have stock length pushrods, stock replacement lifters, and 253/257 duration 643/648 lift cam. I am hoping I won't have to screw around with shims. Any help is greatly appreciated.
10-05-2004, 04:19 AM
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I got these on my T/A and I'm taking them off. Even with 918 springs, I get valve float in the 6K range, and possibly power loss, as I was expecting to dyno around 390/360 instead of the numbers you see in my sig. Several people from this site have recommended staying with stock rockers. Just a heads up.
10-05-2004, 09:15 AM
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Originally Posted by SsZERO
I got these on my T/A and I'm taking them off. Even with 918 springs, I get valve float in the 6K range, and possibly power loss, as I was expecting to dyno around 390/360 instead of the numbers you see in my sig. Several people from this site have recommended staying with stock rockers. Just a heads up.
10-05-2004, 02:30 PM
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I just installed the rockers, I am a little dissapointed with the fit. The rockers on the ends rub on the head casting. I have heard of this happening before, but I was hoping I could get away clean. I torqued the rockers to 22 ft lbs, the motor turns over all the way, but I can see where the back of the rocker is rubbing on the head. 
I am probably going to pull the heads and use a dremel to "clearance" the offending areas. Damn I hate aftermarket parts sometimes! 
I am probably going to pull the heads and use a dremel to "clearance" the offending areas. Damn I hate aftermarket parts sometimes! Trending Topics
10-05-2004, 03:33 PM
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Yeah, I've been seeing a lot of threads with people having clearance issues using these RRs. Trial and error.
I don't know about the stock rockers flexing. That seems pretty far fetched. Most people have a problem with the stockers' needle bearings falling out if they're used with an aggressive cam, but even that isn't widespread.
I don't know about the stock rockers flexing. That seems pretty far fetched. Most people have a problem with the stockers' needle bearings falling out if they're used with an aggressive cam, but even that isn't widespread.
