andrews 57
andrews 57
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Joined: Dec 2015
Posts: 136
Likes: 0
From: house
Have them in my 01 FLHR. Was a great increase in power when I first got them but they really shined when I went to a 98" S&S. I have yet to push the envelope but the noticeable difference now is simply incredible. Just got through the break in period so waiting for an opportunity to see what it will do.
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Joined: Mar 2012
Posts: 6,129
Likes: 143
From: Santa Cruz
Stock early heads won't take the lift so folks run 37s with good results in 95s. Most 98 pistons up the compression over 10 so there are better choices. If doing headwork it is to best talk to whoever is doing the heads about cams so they match.
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6th Gear
Joined: Jan 2016
Posts: 13
Likes: 1
From: wnc
My heads are decked .030 for 80cc. Gonna use .030 head gasket. SE roller rockers. Head porter likes Andrews 54. Talked to Gary at Andrews and he said the 57 would be great at 10.0 or less. Should be a hair less. 9.90. I like the 37 but want to take advantage of the heads with the higher lift 57's
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Ultimate HDF Member
Joined: Jan 2008
Posts: 6,532
Likes: 132
From: SoCal
Funny thing is if you look at the specs the 37 has more duration at .020 than the 57. Lift is an overused and over worried about spec. How long and when you hold the valves open means more than how high.