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Thread: rocker change
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10-09-2007 #1
New to Pro-Touring
- Join Date
- May 2007
- Posts
- 2
rocker change
Hey guys this is an awesome forum. Question is I have the performer rpm heads on 383 with 64 chambers 170 cc runners, I also have matching cam.(at .50 234/244 with .488/.510 lift) Will bumping to 1.6 rockers help package or hurt. Just trying to bump power a little. Evantually I'm wanting new heads with bigger runners but have to save some dough first. Thanks for help
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10-10-2007 #2
Registered User
- Join Date
- Sep 2007
- Location
- Edmonton, Alberta
- Posts
- 291
Not worth it, just do a search for your heads flow numbers. This will show you that even the difference between .4 and .5" lift is only 5cfm/10cfm (intake/exhaust). After .5" of lift those heads are done. And the 2* increase in duration will not help much eather. Save your hard earned coin and find a great set of heads. You'll be much happier.
cheers bbcc
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