? about EV27
? about EV27
I was watching a boobtube video and the mechanic mentioned that the EV27 cam was really hard on lifters because of the fast open/close ramps. Can anyone vouch for this? I've been thinking about swapping to the EV27 so I'm curious.
The only thing that's holding me back from swapping at this time is the fact that my EV13 is wonderfully smooth on the top end. She purrs effortlessly along at 80/85 mph (remembering my final drive pulleys are NOT stock)
The only thing that's holding me back from swapping at this time is the fact that my EV13 is wonderfully smooth on the top end. She purrs effortlessly along at 80/85 mph (remembering my final drive pulleys are NOT stock)
Grand HDF Member
Joined: Sep 2022
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From: Florida
I was watching a boobtube video and the mechanic mentioned that the EV27 cam was really hard on lifters because of the fast open/close ramps. Can anyone vouch for this? I've been thinking about swapping to the EV27 so I'm curious.
The only thing that's holding me back from swapping at this time is the fact that my EV13 is wonderfully smooth on the top end. She purrs effortlessly along at 80/85 mph (remembering my final drive pulleys are NOT stock)
The only thing that's holding me back from swapping at this time is the fact that my EV13 is wonderfully smooth on the top end. She purrs effortlessly along at 80/85 mph (remembering my final drive pulleys are NOT stock)
Seasoned HDF Member
Joined: Feb 2016
Posts: 7,992
Likes: 6,894
From: NC
I had an EV13 cam in my 1989 for about 80,000 miles. I loved the torque as I pulled a trailer 1/3 of the time. That cam, head work, 10 over pistons and Quick Silver II carb meant the front wheel was coming up in first and second gear. Or I could get 55 MPG on back roads, and 48 MPG at 70.
Seasoned HDF Member
Joined: May 2008
Posts: 21,129
Likes: 12,690
From: South Carolina
The EV 27 is not hard on quality lifters.
The first 80,000 miles on my 1989 Softail were with OEM lifters PN 8523-86 (the early type that were known for roller failures), 40k of which were with an EV 27 cam.
I am still using OEM lifters, PN 18523-86B (this part number lifter has no known issues, but they are expensive).
Next set I buy will be Johnson Hy Lyft, from WFO Larry.
Avoid ebay and no name lifters like the plague.
Change your lifters every 40K or so and you will be fine.
The first 80,000 miles on my 1989 Softail were with OEM lifters PN 8523-86 (the early type that were known for roller failures), 40k of which were with an EV 27 cam.
I am still using OEM lifters, PN 18523-86B (this part number lifter has no known issues, but they are expensive).
Next set I buy will be Johnson Hy Lyft, from WFO Larry.
Avoid ebay and no name lifters like the plague.
Change your lifters every 40K or so and you will be fine.
Last edited by Dan89FLSTC; Sep 9, 2025 at 02:05 PM.
HDF Community Team
Joined: Dec 2005
Posts: 5,402
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From: NC USA
I've put lots of miles on the EV13 and SE3 (same as 27) and the 13 is hands down best.
Andrews used to advertise "fast ramps" to make people think their cams were "fast" but has long since dropped that ad.
15k on lifters? lol I ride that in a normal year without road trips. OE lifters only.
Andrews used to advertise "fast ramps" to make people think their cams were "fast" but has long since dropped that ad.
15k on lifters? lol I ride that in a normal year without road trips. OE lifters only.
Seasoned HDF Member
Joined: Feb 2007
Posts: 6,081
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From:
I was watching a boobtube video and the mechanic mentioned that the EV27 cam was really hard on lifters because of the fast open/close ramps. Can anyone vouch for this? I've been thinking about swapping to the EV27 so I'm curious.
The only thing that's holding me back from swapping at this time is the fact that my EV13 is wonderfully smooth on the top end. She purrs effortlessly along at 80/85 mph (remembering my final drive pulleys are NOT stock)
The only thing that's holding me back from swapping at this time is the fact that my EV13 is wonderfully smooth on the top end. She purrs effortlessly along at 80/85 mph (remembering my final drive pulleys are NOT stock)
Strong pull from zero to just past legal speeds with an EV13.
I have an EV13 on a Road King and the "pull" from stock is night and day.
The EV27 is generally suggested for lighter bikes.
Grand HDF Member
Joined: Sep 2022
Posts: 4,411
Likes: 3,814
From: Florida
I've put lots of miles on the EV13 and SE3 (same as 27) and the 13 is hands down best.
Andrews used to advertise "fast ramps" to make people think their cams were "fast" but has long since dropped that ad.
15k on lifters? lol I ride that in a normal year without road trips. OE lifters only.
Andrews used to advertise "fast ramps" to make people think their cams were "fast" but has long since dropped that ad.
15k on lifters? lol I ride that in a normal year without road trips. OE lifters only.
I don’t own a motorcycle that isn’t stroked. I don’t own one below 10,5:1 mechanical compression. I don’t own one less than 190lbs seat pressure on the valves. I don’t own one with a cam with less than 560 lift. 90% of every ride sees at least some north of 6000rpm. Lifters are cheap compared to total rebuilds.
93” Shovel 4.5 Stroke 12:1 compression 590 lift 210 seat, 7,000 rev limiter
113 EVO 4.5 Stroke, 10.8:1, 560 lift, 190 seat, 7000 rev limiter
127 EVO 4.5 Stroke. 10.6:1, 610 lift, 210 seat, 7,000 rev limter
Last edited by Rains2much; Sep 9, 2025 at 02:45 PM.
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HDF Community Team
Joined: Dec 2005
Posts: 5,402
Likes: 2,605
From: NC USA
While in your world youll trust lifters in low compression non-stroked motors that spend 80% of their life below 4000 rpm
mine dont.
I dont own a motorcycle that isnt stroked. I dont own one below 10,5:1 mechanical compression. I dont own one less than 190lbs seat pressure on the valves. I dont own one with a cam with less than 560 lift. 90% of every ride sees at least some north of 6000rpm. Lifters are cheap compared to total rebuilds.
I dont own a motorcycle that isnt stroked. I dont own one below 10,5:1 mechanical compression. I dont own one less than 190lbs seat pressure on the valves. I dont own one with a cam with less than 560 lift. 90% of every ride sees at least some north of 6000rpm. Lifters are cheap compared to total rebuilds.
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