Something in my valvetrain is giving up. I've discussed it alot with some "experts" (amateurs who've been doing this much longer than me), and it is *probably* a bad lifter, exacerbated by the heavy springs I'm using (140# on seat, 350# open). I only want to rip it apart once . So in case it's rockers, I'm doing everything. New 26918 valve springs ("beehive", 130# seat, 300# open), lifters, and rockers. It's really quite loud, and the collapsing lifter may be having a significant impact on power (maybe why I'm only pushing 280 rwhp ...). When all else fails, throw money at it
Dave, are those new springs going to be enough for your cam? Ed told me he would like for my cam to have a minimum of 130# at the seat, and he would prefer to see 135-140#. You're probably one step ahead of me, but I figured I'd ask just to make sure. Yours may be different than mine. Who knows.
Dave, are those new springs going to be enough for your cam? Ed told me he would like for my cam to have a minimum of 130# at the seat, and he would prefer to see 135-140#. You're probably one step ahead of me, but I figured I'd ask just to make sure. Yours may be different than mine. Who knows.
I think they'll be plenty, especially considering the beehive design. David Vizard tried *really* heavy springs and still the beehive springs revved 750 RPM higher before crashing. Really sounds like these 26918 springs are the way to go.
Some day, I will finally have fixed this problem. Since day one I've had a noisy lifter/rocker/something, and it's never been solved. One way or another, I'm going to solve it now... even if it means a new shortblock... (j/k, btw)