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2 days ago · I am running a set of stock heads ported by John Sachs, a HQ-23 cam, Mik 42, T-Header, 10-1 pistons and Crane iggy with 3:37 final gearing. This build rocks. Awesome performance, combined with excellent street manners.
Feb 11, 2010 · Over the last ten years I have used these R&R heads on virtually all of the projects that have come from here. I've used them on 113, 124, 127, 131, 139, 147, 155, 159, 163, 167 inch engines. I used Reggie's heads on the 190" Preditor, the 205" Woody, and the Doc's 260" bike being finished up now.
Stock Harley heads aren't necessarily bad, but they do suffer from the imperfections associated with mass production. Intake and exhaust ports are left with ...
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- GixxerFoo
Aug 23, 2024 · I used John Sachs on my 110 heads that are now on my 117. Can't ask for a better person to deal with and he goes out of his way to help. Suggest giving him a call before you make any final decisions.
Jun 17, 2010 · 07 110 heads had some issues, other than that, tons of them running around out there not dropping guides. John Sachs does a ton of them. Give him a call he will tell you the truth about the heads.
Dec 14, 2008 · I’ve been doing Harley Davidson performance work,with a fairly large cylinder head mail order business since 1990. Getting old,still race some,and am just enjoying life in Paradise with the family and friends.
Feb 20, 2017 · I don't recall any TC heads with 1.750"/1.40" valves. The I don't know what HD says the flow rate of the early OEM heads is but did see the results of a test by John Sachs when the '06 heads came out. He flow tested three sets of heads, '06, '05 and '02.
