HIPPO said:I have done quite a few S&S570, SEp head builds and they are very nice to ride bikes, the numbers given above are correct, they usually end up at 95/105
The advantages are that you can get the parts in a box in one day and be done with it, they are easy to tune and have proven very reliable over time even when using stock rocker arms. 9.8 to 10 CR.
No question that with some of the better ported stock heads available now and 37's you can get virtually the same performance.
It pretty much comes down to wether you like chocolate or strawberry.
atengnr said:Im suggesting that if the same or better performance can be had with a 510 lift cam, vs a 570, and with lower compression, why go with the 570?? Also, with a 37G and good port job, youll hit 100Tq around 3000 rpm. In other words, I think the bottom end torque will be better as well..
I have the 570g and ported heads in my flstc. It is 9.8 compression and is fun to ride and it screws. The CC slipons mated well with build to rip out of corners (tq) and it has a long power band. I have ~14k miles on the build and it runs strong and sounds great.EZ Road said:I am thinking about putting an S&S Gear Drive in my 02 Road King. Anyone out there have experience with them?
I don't have the paperwork in front of me but as I recall the corrected CR with the Baisley heads was about 9.8 and with the addition of the rinehart true duals my builder expects 100 to 105 hp and that's enough for my bagger.atengnr said:Also, did you say youre set up for 10.25 compression?? Isnt that too much for 570G??