BAMA-TENN Mower Racing Assoc.

Engine Specifics => Briggs OHV twins => Topic started by: George Herrin on January 22, 2007, 11:02:59 pm



Title: INTEK V-Twin valve train.
Post by: George Herrin on January 22, 2007, 11:02:59 pm
Racers I made a discovery tonight out in the shop working on some intek heads for a fellow racer. Want a 8000 rpm motor you must have a valve train that can stand up to it. Lets face it the stock rockers are junk. 6500 at best and who knows for how long. Use EC dual spring kits and roller rockers and you will have a bullet proof valve train. Yup you heard me roller rockers they are out there and unless someone stimbled on it they simply don't know it. BUT the rollers made by http://www.performancevtwins.com/ for the late model 97 or later Vanguard V-twins is will bolt right on. use your orignal rocker stud and you have a set of billet roller rockers.


Title: Re: INTEK V-Twin valve train.
Post by: johnboy on March 26, 2007, 07:00:22 am
this is interesting. Do you have any idea of what ratio a stock rocker is and what the roller rocker is?  Just wondering.   Thanks  Johnboy


Title: Re: INTEK V-Twin valve train.
Post by: rebelracing16 on March 26, 2007, 03:54:22 pm
SHOULD HEAR from machinist today.Were still working on it.


Title: Re: INTEK V-Twin valve train.
Post by: George Herrin on June 13, 2007, 06:19:52 am
The rollers and stock rockers are the same. 1.125 to 1


Title: Re: INTEK V-Twin valve train.
Post by: rebelracing16 on June 13, 2007, 07:43:41 am
If I wanted to go with 1.6 rockers would It cause valve spring bind?


Title: Re: INTEK V-Twin valve train.
Post by: George Herrin on June 13, 2007, 09:14:27 am
Using the cam we plan on using more than likely would.


Title: Re: INTEK V-Twin valve train.
Post by: rebelracing16 on June 13, 2007, 07:33:35 pm
Ya, that would add 45 thousandths to the cam. A 1.5 would add 15 to it. Just thinking.