Bronze valve guide longevity
#1
Bronze valve guide longevity
I've been researching aftermarket heads for my car. I'm aiming towards a set of AFR or TSF heads. Both reccommend roller rockers due to the bronze guides used. I also see alot of mention that bronze wears out quicker.
So, what I havent saw is "how quick" is quicker? Assuming I got roller rockers as suggested (YT's perhaps) how long could I expect the guides to last before needing replaced? I dont expect a 200k engine here, but I'd like not to pull the heads off every 20-25k either.
I've saw where the TFS can have the bronze upgraded to powdered metal as well. If I did this could I forgo the roller rockers and have "stock like" reliability with aftermarket heads?
Appreciate feedback
So, what I havent saw is "how quick" is quicker? Assuming I got roller rockers as suggested (YT's perhaps) how long could I expect the guides to last before needing replaced? I dont expect a 200k engine here, but I'd like not to pull the heads off every 20-25k either.
I've saw where the TFS can have the bronze upgraded to powdered metal as well. If I did this could I forgo the roller rockers and have "stock like" reliability with aftermarket heads?
Appreciate feedback
Last edited by crash41301; 11-18-2013 at 10:34 PM.
#4
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/agree on the powdered metal. I have about 8k on my PRC heads and the guides show almost no sign of wear. I am using rollers as well.
I know CCW is supper picky about the offsets of their wheels but I was wondering what yours were. Mine are 18x10 +50 square and am looking for a staggered setup.
I almost miss my stock rear wing. Had to remove it because of some cancer it was causing.
I know CCW is supper picky about the offsets of their wheels but I was wondering what yours were. Mine are 18x10 +50 square and am looking for a staggered setup.
I almost miss my stock rear wing. Had to remove it because of some cancer it was causing.
#5
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Sorry to hijack the thread but what about steel valve guides, are they stronger than powdered metal guides? Saw the option over bronze on texas speeds website, I wanted to run stock rockers.
#7
With bronze and roller rockers how long should I expect? I've saw plenty of reports of early wear on bronze with stock rockers. Can I expect 60 or 70k with roller and bronze? Think I'm leaning towards pm guides but trying to learn all I can before making the jump. Thanks guys!
Exidous - they are 18 x 10.5 with 7.75 back spacing on all 4 wheels. Running 1/4 spacer in the rear. It's about the most you can fit on the car without body mods or goofy camber stuff. I've got 285s all around. I think I could get 295 all around though on street tires. (Race tires tend to run wider)
Exidous - they are 18 x 10.5 with 7.75 back spacing on all 4 wheels. Running 1/4 spacer in the rear. It's about the most you can fit on the car without body mods or goofy camber stuff. I've got 285s all around. I think I could get 295 all around though on street tires. (Race tires tend to run wider)
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#9
It probably really wouldn't go that long for me before I took it apart anyway. However I feel like if I can expect 20k only it'll make me constantly feel like I'm burning the clock every time I go for a long cruise on a nice weekend. Don't want anything to ruin the enjoyment for me since that's what it's all about anyway :-)