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I'm replacing my heads on my 347 TT setup. Going to AFR 230s which I can't find out much on. First has anyone any experience with the AFR 230 heads? Second I need to know what rocker arm to use. I can get a better price on Jesel rockers but I've heard they weren't best for my app. My only other alternatives IMO are the Comp cam 1500 or the same T&D rockers. Something about shims and the Jesel rockers with the AFR. Some techs: lift 620s. rev limit 7000. shift point 6800. Springs I don't know height yet as they are supposedly going to be custom springs. Probably 1.74 or so. Seat pressures in the 180 range intake with opening pressure about 540. Boost limit 20-22. Rockers 1.7 ratio. Normal hyd cam bearings. Caddy lifters.
I'm replacing my heads on my 347 TT setup. Going to AFR 230s which I can't find out much on. First has anyone any experience with the AFR 230 heads? Second I need to know what rocker arm to use. I can get a better price on Jesel rockers but I've heard they weren't best for my app. My only other alternatives IMO are the Comp cam 1500 or the same T&D rockers. Something about shims and the Jesel rockers with the AFR. Some techs: lift 620s. rev limit 7000. shift point 6800. Springs I don't know height yet as they are supposedly going to be custom springs. Probably 1.74 or so. Seat pressures in the 180 range intake with opening pressure about 540. Boost limit 20-22. Rockers 1.7 ratio. Normal hyd cam bearings. Caddy lifters.
Stay away from H. S (junk) ask any good builder they will tell you the same.
jessel is the way to go if you want to spend over seven bills, or for three bills you can get the next best rockers, Yella Terra altralites shaft mount.
I'm going to go with the YT rockers unless someone talks me into the T&D rockers. I think the Comp Cam 1500 are the same as the T&D. I do think I will need taller spacers for the T&D rockers and maybe nonstock valve covers. Is that true?
Last edited by jobberone; Nov 30, 2010 at 12:12 AM.