afr heads
Most of the AFR love comes from believing in marketting and a reputation built before the LT1. They did not keep pace with the LT1 and recently redid their entire lineup to try and compete, basically an admission it was all grossly outdated. My understanding is that till recently it was all like 60-70s era ports they bought from Brownfeild. New stuff the "eliminator " line is untested.
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Most of the AFR love comes from believing in marketting and a reputation built before the LT1. They did not keep pace with the LT1 and recently redid their entire lineup to try and compete, basically an admission it was all grossly outdated. My understanding is that till recently it was all like 60-70s era ports they bought from Brownfeild. New stuff the "eliminator " line is untested.
P.S. The reason AFR created the elininator heads was cause their older ones were designed very soon after the release of LT-1 cars way back in late '92. The new eliminators are using LS-1 style valves, springs, and retainers. This is what super chevy has to say about them.
A clean sheet of paper approach to port and combustion chamber designs has boosted efficiency levels dramatically with smaller cross-sectional areas flowing 5-10 percent more across the entire curve for increased airspeed. AFR is the first company to incorporate "Gen III" technology into their 23 product line by fitting them with 8mm valves, and lightweight springs and retainers (a 50-gram weight reduction per valve/spring/retainer assembly), which reduces valve float and improves high-rpm power and reliability.
Sounds like that whole weight reduction thing is a good idea for anyone who wants to spin their motor to 6800 to 7000 r's. Just my .02 -Chris
Oh, heres a link to the article I pulled that clip from: http://www.superchevy.com/technical/..._products.html
Last edited by BLK,97,T/A,M-6; Feb 7, 2008 at 11:31 PM.






