428 NHRA Stocker Rocker Arms

[Damn Yankee]

I was told NHRA may now be allowing aftermarket rocker arms (Similar to Harland Sharp Non-Adj) to be used in 428 Stockers, as a replacement ? I’m not finding it in the appendage like the Molnar Rods. Brent Lykins makes a nice non adjustable shaft system I’d like to use if this is indeed correct

[fabe427]

Roller rockers have been legal in stock eliminator for quite some time.

[Damn Yankee]

Originally Posted by fabe427

Roller rockers have been legal in stock eliminator for quite some time.

Thank you…..I’m guessing I need to purchase the NHRA Rulebook pertaining to the 428. The rocker arms come in both 1.73 and 1.76 from the factory.

[Chuck Norton]

Detailed specifications are quickly accessible through <http://www.classracerinfo.com/>.

[Damn Yankee]

Originally Posted by Chuck Norton

Detailed specifications are quickly accessible through <http://www.classracerinfo.com/>.

Thank you Chuck; it’s been a little while since I’ve been on the Forum

[Alan Roehrich]

Get it in writing from Pat Cvengros, or Dave Ley, but the basic intent of the roller rocker arm rule is that the rocker arm must bolt to the head without modification or machine work. I don't see where the rule specifies the method of adjustment, or that the aftermarket roller rockers must be non adjustable if the factory rockers were non adjustable. So you may not need to buy non adjustable rocker arms. I'd see what is available that I wanted, and then contact Pat and/or Dave.

[Damn Yankee]

Originally Posted by Alan Roehrich

Get it in writing from Pat Cvengros, or Dave Ley, but the basic intent of the roller rocker arm rule is that the rocker arm must bolt to the head without modification or machine work. I don't see where the rule specifies the method of adjustment, or that the aftermarket roller rockers must be non adjustable if the factory rockers were non adjustable. So you may not need to buy non adjustable rocker arms. I'd see what is available that I wanted, and then contact Pat and/or Dave.

Thank you Alan !!!

[Alan Roehrich]

No problem.

[Larry Hill]

Don’t forget to get some really good rocker shafts. Sometimes the ends break off.

[Mike Gray]

I currently have the T&D FE rockers and shafts and they work really well so far. My previous engine had POP (precision oil pump) rockers and I liked them also. If you use T&D, you need to use the street rockers because the race rockers are a paired set up with modified mounting and oil through the pushrods which is not stock on an FE.