428 NHRA Stocker Rocker Arms
 

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

Re: 428 NHRA Stocker Rocker Arms
 

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

Re: 428 NHRA Stocker Rocker Arms
 

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.

Re: 428 NHRA Stocker Rocker Arms
 

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

Re: 428 NHRA Stocker Rocker Arms
 

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

Re: 428 NHRA Stocker Rocker Arms
 

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.

Re: 428 NHRA Stocker Rocker Arms
 

Thank you Alan !!!

Re: 428 NHRA Stocker Rocker Arms
 

No problem.

Re: 428 NHRA Stocker Rocker Arms
 

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

Re: 428 NHRA Stocker Rocker Arms
 

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.