Rockers for stock Eliminator 5.0 SBF

[Mark Yacavone]

Originally Posted by Slickfoot

Do roller rockers really make any more horse power ? Or is it a matter of covenience. Seems to me that the stock rockers would be more reliable. Once there set-up I can't see how they could lose there adjustment.
Slickfoot

You would think they would make more power, but I 've seen several examples where they didn't.
The reason for the change is that NHRA doesn't want cars breaking on their track, and slowing down the show.
We've seen stamped sheet metal rockers split in two , or punch out the push rod cups, with the springs they allow you to run now.
But the main point should be.. Everybody ...or nobody.
Garden variety Chevies didn't come with screw in studs and guide plates. If they can modify the heads, why can't everyone else?
Shafts where shafts were, studs and guides everywhere else.
End of story.

[Slickfoot]

I agree Mark, It should be the same for everyone. It's been 45 year since I raced in stock and was the same back than. They will cater to who will put the most asses in the seats. That being said, there has to be something done , because the two best legal roller sets the Ford M-6564-B351-C and the Comp 1052-16 are no longer made.
Slickfoot

[Bobby Fazio]

Is the crane conversion kit worthwhile?

[Slickfoot]

Thanks Bobby
I don't know anything about it. I'll will see if I can find on line and check it out.
Slickfoot

[HandOverFist]

If I was determined to go that route I would can the conversion and just have the pedestal bases machined down for standard screw-in studs. http://www.mediafire.com/view/mq88m1...M-6564-All.pdf

[7423]

Originally Posted by HandOverFist

If I was determined to go that route I would can the conversion and just have the pedestal bases machined down for standard screw-in studs. http://www.mediafire.com/view/mq88m1...M-6564-All.pdf

That would be a valid DQ.

As per the 2013 nhra rule book, (the latest one I have), section 10A page 3, stock class rules..............cylinder heads...........quote "Any evidence of modifications from the original castings will be grounds for DQ"..........here comes the good part............quote "as determined by nhra in nhra's sole and absolute discretion"

Any lawyers in the house?? What does "sole and absolute discretion" mean??

I had several 5.0 class racers tell me to wack the pedestals for studs. So I asked Bruce one year at Somona. His answer............"absolutely no"

I run the oem rocker, fulcrum and bolt with a shimmed lifter, works just fine.
Your mileage may vary.

[HandOverFist]

Originally Posted by 7423

That would be a valid DQ.

As per the 2013 nhra rule book, (the latest one I have), section 10A page 3, stock class rules..............cylinder heads...........quote "Any evidence of modifications from the original castings will be grounds for DQ"..........here comes the good part............quote "as determined by nhra in nhra's sole and absolute discretion"

Any lawyers in the house?? What does "sole and absolute discretion" mean??

I had several 5.0 class racers tell me to wack the pedestals for studs. So I asked Bruce one year at Somona. His answer............"absolutely no"

I run the oem rocker, fulcrum and bolt with a shimmed lifter, works just fine.
Your mileage may vary.

Granted...I use pedestal mount myself. My point was "if" someone were determined to go with studs I would absolutely forgo that conversion crap for a conventional stud arrangement.

[Mark Yacavone]

Originally Posted by 7423

That would be a valid DQ.

As per the 2013 nhra rule book, (the latest one I have), section 10A page 3, stock class rules..............cylinder heads...........quote "Any evidence of modifications from the original castings will be grounds for DQ"..........here comes the good part............quote "as determined by nhra in nhra's sole and absolute discretion"

Any lawyers in the house?? What does "sole and absolute discretion" mean??

I had several 5.0 class racers tell me to wack the pedestals for studs. So I asked Bruce one year at Somona. His answer............"absolutely no"

I run the oem rocker, fulcrum and bolt with a shimmed lifter, works just fine.
Your mileage may vary.

Don't see how, Charlie.
They're talking about port modifications.
Screw in studs have been legal since forever. When they start DQing Chevies and early Pontiacs, then I'd worry about that rule.