I ride a 2003 Deuce with a carburetor, not injected. Pretty much a stock 88” with a Ness giant sucker and Thunderheader. In 2019 I got talked into a .510 S&S bolt in cam. Nice top end increase but not much low end torque. I did the entire cam chest and oil pump, also. I’m very impressed with all of the technical input from the post’s I have read on these forums. I would appreciate some input on how to solve the torque dilemma. I was thinking a 98” kit and doing the heads since they would be coming off anyway. I read Scott at Hillside said that the .510 likes cr of 10.2. I would definitely put .600 springs in. I wanted to know if I have the heads done to match the cam, if I go to a Woods or Andrews cam next year, will the heads need redone? Any suggestions would be appreciated. I rarely run 2 up, and don’t want to be first, just happiest.

 

if you want your heads done, you would be better served to choose a different cam, talk to your head porter and they will have suggestions on what works well with their work. the .510 cam was designed to work with stock style heads, and it will work better with more compression, if you are going to port,,,,,,,
a 10-10.5-1 98 inch, with heads done and the right cam will be very satisfying, without breaking the bank. you dont mention what carb you have, but that might be the only area to consider afterwords if you're running the stock cv, although that can be made to work with a lot of builds, MY opinion would be to step that up to an S&S or Mikuni, your choice.
Scott at Hillside and Kirby at VeeTwin Racing are both good guys to work with if you dont have a local guy.
m

 

I have the stock cv carb. I believe it is a 40. I was hoping not to have to go bigger. I’ll be using either Hillside or BigBoyz for the heads. I don’t have a local guy that I think is as good as either of them.

 

Had stock 88" with 510`s / liked it
Now 98" with 570`s 10:1 comp & heads
Retained stock carb

 

at 98",the 510 cams would not be my choice,if wanting to stay with S&S,go with 570 cams

 

Hi Kirby, this is Deuce Dave 2003 from the HD Forums replying to your message. I would absolutely like to take you up on purchasing a cam. I’ll take the S&S .570 Gear drive Easy Start complete kit For the price you quoted me. Just let me know how to get you my credit card information and I’ll send you shipping information to Ohio. Thank you for your help and input. By the way, can you bore my jugs and install the 98” kit if I ship them to you? What would be the price? Feel free to email me.

 

Does anyone have a tc 98 upgrade with.570 cams? What cr is optimal for this combo?

 

What pistons did you install? I am looking at Wiseco and CP. I know S&S has some also.

 

Used CP 10.1 to 1
This netted an "actual ' C/R of approx. 9:3 ( they also offer 10:5 to 1 , this "might" be a choice for you as your Deuce is lighter than my RK)
This was advised by DJL for carb models. to avoid tuning issues
He also advised a twin tech ignition for the same reason


Just north of you in 44720
Regards !

 

Our shop Dyna "mule bike" has a 98", S&S .570 cam combo.
Stock CV carb, our HMM-0980, and our HMM Stage II Heads.
Supertrapp 2/1.
Makes 105-6 hp, 112-3 ft/lbs.
Fun combination.
If you already have a gear drive, then a Wood 6HG might be of interest?
Scott