2020 SGS S&S 475C cam swap???
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6th Gear
Joined: Aug 2020
Posts: 11
Likes: 1
From: Illinois
2020 SGS S&S 475C cam swap???
I have a 2020 SGS 114, stock with just slip-ons a the moment. I am very tempted to install a S&S 475C and have a question. I will be doing a new head pipe, intake, and power vision tuner at the same time.
I plan on doing the cam, new bearing, new lifters, lifter cuffs, and adjustable push rods. My main question, is the cam chest plate and pump highly recommended when swapping cams? Since I have a 2020 I have the new oil pump and have never had any sumping issues. I ride a lot and sometimes long distances so reliability is very important. But I don't want to swap the pump and chest plate if not absolutely necessary. Adds about another $700 to the cost. Any and all input is appreciated.
I plan on doing the cam, new bearing, new lifters, lifter cuffs, and adjustable push rods. My main question, is the cam chest plate and pump highly recommended when swapping cams? Since I have a 2020 I have the new oil pump and have never had any sumping issues. I ride a lot and sometimes long distances so reliability is very important. But I don't want to swap the pump and chest plate if not absolutely necessary. Adds about another $700 to the cost. Any and all input is appreciated.
Last edited by 1meangt; Jul 8, 2021 at 12:23 PM.
Seasoned HDF Member
Joined: Jul 2017
Posts: 5,749
Likes: 1,603
From: High Point, NC.
I ran this cam in my 17 and didn't opt for the cam plate or oil pump upgrade. Put over 15k on the bike with this config and no issues.
Like you said, you should have the latest oil pump. Swap them out if you dont feel comfortable not doing it. Only you can make that decision.
Like you said, you should have the latest oil pump. Swap them out if you dont feel comfortable not doing it. Only you can make that decision.
Cruiser
Joined: Sep 2010
Posts: 144
Likes: 45
From: WI
I have a '19 RKS and last year installed a Woods 22x cam, lifters, etc. I had the old oil pump so I upgraded to the new 8 lobe. Kept the stock cam chest. Put on a couple 800+ trips so far this year and no issues. Runs great. I would guess since you have the upgraded oil pump no need to go any further. Also, I kept the stock lifter cuffs....didn't feel like messing with the cover bolts.....bike still hasn't exploded. I feel most of the stock components should be ok...but yeah, do what ever you feel comfortable with.
You shouldn't need to replace the cam plate and oil pump, the ones you have should be fine.
If I was going to the S&S 475 cam I would consider replacing the stock head gaskets with a Cometics .030" gaskets. This will up your compression to the 10.75 - 10.9 range and should make the engine really wake up with that cam.
If I was going to the S&S 475 cam I would consider replacing the stock head gaskets with a Cometics .030" gaskets. This will up your compression to the 10.75 - 10.9 range and should make the engine really wake up with that cam.
Ultimate HDF Member
Joined: Oct 2016
Posts: 5,063
Likes: 2,582
From: On my bike!
Im running the 475 in a fuel moto built 128, I did not have the new HD 8 lobe pump but I had them put it in while building the motor. Runs like a champ! I couldnt see enough benefit over the HD 8 lobe (which your bike has) to justify the price of S+S or Feuling pump/plates.
Road Master
Joined: Feb 2019
Posts: 831
Likes: 217
From: The Shit Show
You shouldn't need to replace the cam plate and oil pump, the ones you have should be fine.
If I was going to the S&S 475 cam I would consider replacing the stock head gaskets with a Cometics .030" gaskets. This will up your compression to the 10.75 - 10.9 range and should make the engine really wake up with that cam.
If I was going to the S&S 475 cam I would consider replacing the stock head gaskets with a Cometics .030" gaskets. This will up your compression to the 10.75 - 10.9 range and should make the engine really wake up with that cam.
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Cruiser
Joined: Oct 2016
Posts: 123
Likes: 31
From: lakeside
I recently upgraded my 19 Road Glide 107 to a 114 with the 475 cam. I did do the new upgraded oil pump and have the stock camplate. I put new fueling lifters in and the s & s lifter cuffs. I also put the srcreamin eagle throttle body as well. The tuner used was powervision with a tune from fuel moto and then my mechanic tuned the bike. The bike is a beast. The only other thing I am adding suggested by my mechanic is the fan assisted oil cooler. You will love that cam. Twist the throttle and it gets. I was cruising on the freeway and looked and speedometer and it was past the 120 and had lots more.
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The stock cam closes the intake valve at 1 degree after bottom dead center (abdc). This develops 225.5 psi of pressure in the cylinders at sea level. The S&S closes the intakes at 27 abdc on the front cylinder and 31 abdc on the rear cylinder. This drops the pressure to 215 psi front / 212 psi back. Going from the stock .045" thick head gaskets to .030" head gaskets will increase the cylinder pressures to 223 psi front / 220 psi rear. Cylinder pressure equals power up to the point where you start have detonation. So even though the 475 opens the valve higher and longer, it is going to have an adverse effect on the cylinder pressure. Thinner head gaskets reverse this to a great degree and they also improve the squish area making for a better vaporization of the fuel. Therefore a compression increase should result in more power and the torque should come on sooner. A cam like the RS468 closes the intakes at 15 degrees abdc and keeps the cylinder pressure at 222 psi., so it develops its torque much earlier than the SS475. The SS475 seems to work really well in the big bore motors and most of those have compression ratios of 10.75:1 or more.
Ultimate HDF Member
Joined: Oct 2016
Posts: 5,063
Likes: 2,582
From: On my bike!
I recently upgraded my 19 Road Glide 107 to a 114 with the 475 cam. I did do the new upgraded oil pump and have the stock camplate. I put new fueling lifters in and the s & s lifter cuffs. I also put the srcreamin eagle throttle body as well. The tuner used was powervision with a tune from fuel moto and then my mechanic tuned the bike. The bike is a beast. The only other thing I am adding suggested by my mechanic is the fan assisted oil cooler. You will love that cam. Twist the throttle and it gets. I was cruising on the freeway and looked and speedometer and it was past the 120 and had lots more.