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Old 10-17-2008, 02:02 PM   #1 (permalink)
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Adjustable pushrods for 124"?

Who makes the best adjustable pushrods for 124" which allows cams to be changed without removing the top end?Have the adjustable Smith Brothers in my present 98" but have to remove the top end to change cams.Plan on trying a few cams in the future 124" such as the R&R 615.Many will say that cam is way to small for such a large engine but in my opinion would be a great torque monster for baggers.Rarely do i go over 5000 rpms.Notice how the 640g is getting replaced with such cams as the Woods 9b to improve the bottom end.
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Old 10-17-2008, 02:07 PM   #2 (permalink)
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We use a lot of S&S pushrods.
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Old 10-17-2008, 05:23 PM   #3 (permalink)
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Quote:
Originally Posted by todd comer View Post
Who makes the best adjustable pushrods for 124" which allows cams to be changed without removing the top end?Have the adjustable Smith Brothers in my present 98" but have to remove the top end to change cams.Plan on trying a few cams in the future 124" such as the R&R 615.Many will say that cam is way to small for such a large engine but in my opinion would be a great torque monster for baggers.Rarely do i go over 5000 rpms.Notice how the 640g is getting replaced with such cams as the Woods 9b to improve the bottom end.


Rivera TaperLites & Smith Brothers also make excellent adjustable pushrods...

Randy "KOC" / HYPERFORMANCE custom machined a set for me...

Randy also has Rivera TaperLites for sale...
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Old 10-17-2008, 06:22 PM   #4 (permalink)
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I assume that the 124" does take a longer pushrod compared to a 95" or 98".
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Old 10-17-2008, 06:53 PM   #5 (permalink)
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There is plenty of adjustment.... in adjustable pushrods
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Old 10-17-2008, 09:44 PM   #6 (permalink)
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Quote:
Originally Posted by 1711tab View Post
Rivera TaperLites & Smith Brothers also make excellent adjustable pushrods...

Randy "KOC" / HYPERFORMANCE custom machined a set for me...

Randy also has Rivera TaperLites for sale...
Tim did you have a rubbing issue? Is that why randy machined yours? What size? I have a problem with my rear exhaust rubbing and making a lot of annoying racket.
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Old 10-18-2008, 07:32 AM   #7 (permalink)
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Rick,which brand push rod are you running? Can you remove the cams without taking the top end apart?Mark thought if you adjusted the rods all the way in,removed the bottom lifter covers,lifters at there lowest point, that the pushrods could slide out.Tried that theory when I installed the stage V kit but still could not get the pushrod high enough over the lifter edge.Thinking that the 124" sits higher therfore this might just work but are the Smith Bro.'s made to extend that far out?They sure have alot of thread that goes in the rod.Never had any rubbing problems with this particular rod.
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Old 10-18-2008, 07:50 AM   #8 (permalink)
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Tim did you have a rubbing issue? Is that why randy machined yours? What size? I have a problem with my rear exhaust rubbing and making a lot of annoying racket.
Yes they rubbed... He made me a tapered set 9 1/4" long when they were colapsed completely... He also made the pushrod covers and they are thin, real thin walled covers...
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Old 10-19-2008, 02:05 PM   #9 (permalink)
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Rick,which brand push rod are you running? Can you remove the cams without taking the top end apart?Mark thought if you adjusted the rods all the way in,removed the bottom lifter covers,lifters at there lowest point, that the pushrods could slide out.Tried that theory when I installed the stage V kit but still could not get the pushrod high enough over the lifter edge.Thinking that the 124" sits higher therfore this might just work but are the Smith Bro.'s made to extend that far out?They sure have alot of thread that goes in the rod.Never had any rubbing problems with this particular rod.
Todd,
I had the Smith Bros adjustables and you have to remove the rocker boxes in order to get them out. In my infinite wisdom I tried a set of the screaming eagle tapered adjustables that you can install by just removing the lifter covers. I am having a problem with the rear exhaust rubbing and clattering. Looks like I will be pulling the rocker boxes off in the very near future. BTW for anyone with the TP rocker boxes. The rear is real pain in the a$$ to get on and off while in the bike.
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Old 10-19-2008, 02:11 PM   #10 (permalink)
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Todd,
I had the Smith Bros adjustables and you have to remove the rocker boxes in order to get them out. In my infinite wisdom I tried a set of the screaming eagle tapered adjustables that you can install by just removing the lifter covers. I am having a problem with the rear exhaust rubbing and clattering. Looks like I will be pulling the rocker boxes off in the very near future. BTW for anyone with the TP rocker boxes. The rear is real pain in the a$$ to get on and off while in the bike.

How much taller are the TP boxes than the stock HD boxes???
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Old 10-19-2008, 02:49 PM   #11 (permalink)
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The reason we use the smith brothers that they make for us is the rubbing issue. Yes you have to remove the rocker boxs but there is little else you can do. Try the quick installs manily they end up creating more issues than solving. The S&S versions are very stong and wrok well other than the 7/16 tubing size. Again back to the reason for smith bros making us rods.
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Old 10-19-2008, 02:55 PM   #12 (permalink)
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Tim,
The TP boxes are about 2 1/4" all around. The biggest problem is the four allen screws in the top corners of the TP covers. There is no offset for the screws like there is on the stock covers. I had to cut down an allen wrench quite a bit in order to get it to fit between the backbone and the top of box for the rear left screw. I'm sure you have less room than I do. Might need to pull the motor anytime you need to get in there.
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Old 10-19-2008, 04:18 PM   #13 (permalink)
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Tim,
The TP boxes are about 2 1/4" all around. The biggest problem is the four allen screws in the top corners of the TP covers. There is no offset for the screws like there is on the stock covers. I had to cut down an allen wrench quite a bit in order to get it to fit between the backbone and the top of box for the rear left screw. I'm sure you have less room than I do. Might need to pull the motor anytime you need to get in there.

Thanks Rick...
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Old 10-19-2008, 04:20 PM   #14 (permalink)
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Steve,will these GMR Smith bro. adjustable pushrods that are presently in my 98" work in a 124"?Can anyone tell me how much higher a 4 5/8" stroke 124" is compared to a 98"?
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Old 10-19-2008, 06:40 PM   #15 (permalink)
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Tim,
The TP boxes are about 2 1/4" all around. The biggest problem is the four allen screws in the top corners of the TP covers. There is no offset for the screws like there is on the stock covers. I had to cut down an allen wrench quite a bit in order to get it to fit between the backbone and the top of box for the rear left screw. I'm sure you have less room than I do. Might need to pull the motor anytime you need to get in there.
If you've got a rubber mounted engine I've just dropped the front motor mount and it gives you plenty of room to remove the rear rocker box. On solid mounts, I've drilled 2 holes in the frame above the allens of the rear rocker box and gone in from the top.
Lightened up the bike a little!
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