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BBC Rocker recomendation
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DRR Pro
posted
I have a 454 BBC with Steel heads in my bracket Nova. My kid and I run the crap out of this car it is super fun to drive. Its 6.0s @ 114ish. It just bent a valve last weekend. It has stud mounted Harland sharp rockers. I check the valves every other time out. I rarely have to adjust anything. I started to take it apart at the track and noticed the center pivot on the rocker was cracked. Im guessing the rockers stuck and hung the valve open. Cam is .714 lift roller lifters should I have shaft rockers on this? Trying to do this as economical as possible. Recommendation?


--------------------
Bob Payton
S/P, T/D, S/C, TOP
309Z, 393, 3093, 8X93


www.apdracing.com
www.diamondracecars.com
www.callies.com
 
Posts: 1974 | Location: Michigan | Registered: November 14, 2001Reply With QuoteReport This Post
DRR Trophy
Picture of NC3x58
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Comp Cams Ultra Pro Magnum's I think is what we have on our mild bracket BBC in dragster. Probably close to 700 runs with zero issues out of rockers on a .775 lift, 900ish hp going 4.90's


Nick Craig

1971 Camaro Split Bumper
376ci LS3
 
Posts: 410 | Location: Ohio | Registered: December 28, 2013Reply With QuoteReport This Post
DRR S/Pro
Picture of Mike Rietow
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Harland Sharp are more of a street strip rocker. Crane Gold are as good they get.

Posted on FB I was in the market for a set. Had 3 reply's. I only have 385 FB friends. You can find Crane Gold rockers still.

I chose these of the 3, brand new spares a guy in Michigan had sitting around collecting dust, $200 bucko's. Deal!




https://youtu.be/FZ6zwnyDwUg

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1996, 1998, 2001, 2003, 2005, 2006, 2008 Super Pro Champion Sunshine Dragstrip, Clearwater Florida
 
Posts: 8831 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR S/Pro
Picture of Mike Rietow
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Another good option would be a Crower stainless. I'd do a Crane or Crower.

That'll fix it good. Either


https://youtu.be/FZ6zwnyDwUg

http://ottm.store

https://youtu.be/I8QWEaqeFRw

1996, 1998, 2001, 2003, 2005, 2006, 2008 Super Pro Champion Sunshine Dragstrip, Clearwater Florida
 
Posts: 8831 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR Trophy
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T&D!
 
Posts: 94 | Location: Atlanta “Land Soft--Kill Quiet” | Registered: January 21, 2021Reply With QuoteReport This Post
DRR S/Pro
Picture of Big Steve
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For stud mounted in a basic bracket motor I ran Harland Sharps for years. They are good quality, reasonably priced and made in the USA.

For shaft mounted pick your poison, T&D or Jesel but be prepared to wait 8-10 weeks to get them right now
 
Posts: 1980 | Location: On the the dark side now | Registered: April 30, 2010Reply With QuoteReport This Post
DRR S/Pro
Picture of Lenny5160
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I have a set of Harland Sharps that were run for 10-15 years without a failure. I have one of them on my door car now after a Spring failure wiped out one of the Harland Sharp HD set that I’m running now.

This is on a BBC with .730 gross lift.

The Crower stainless are nice too. I had those on my dragster with a little over .800 lift before putting on T&D.


Tony Leonard
 
Posts: 2945 | Location: Inver Grove Heights, MN | Registered: March 18, 2004Reply With QuoteReport This Post



DRR S/Pro
Picture of SCDIV1
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I used Crane wide body rockers for years with a stud girdle on GM aluminum heads and never broke one.

Comp cams steel rockers are pretty bullet proof as well.

Harland Sharps are better than most also and also never broke.

All those rockers used on cams with mid .700 lifts and lower spring pressures than is common these days.

I generally kept RPM at 7500 or under on BB’s but in fast air and a tailwind might see 7800-7900 with no breakage
 
Posts: 2537 | Location: Where ever I am, I'm here and it's me | Registered: March 15, 2007Reply With QuoteReport This Post
DRR Sportsman
Picture of TD3550
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Always have used the Harland Sharp Wide Body rocker. Money well spent. HD Rocker series. Clears my 1.640 springs no problem. Good for 1100 Lbs.
.850 lift here.

Sharp might warranty it. Call them. Worth the call. They really stand behind their products.

This message has been edited. Last edited by: TD3550,
 
Posts: 1369 | Location: Under a Truck | Registered: August 23, 2013Reply With QuoteReport This Post
DRR Trophy
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Comp 1820-16 worked for me forever. Depending on spring pressure a 1620-16 will probably be fine. Very hard to find right now however since comp has been backordering these for a while. You may find someone with them in stock however.
 
Posts: 3 | Location: Kent City Michigan | Registered: August 02, 2010Reply With QuoteReport This Post
DRR Elite
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Crane gold wide body aka “TR” on my steel headed 700HP 468 that made over 5000 pssses. No stud girdle and never broke any part of the valve train.


O'IT!

Offering 1st hand experience and advice based on 3 decades of on track proven performance

"if you guys are so broke dyck you can't buy USA made parts you need to stay the fuc at home that's the bottomline" ----Tim McAmis



 
Posts: 12047 | Location: NJ | Registered: August 20, 2000Reply With QuoteReport This Post
DRR S/Pro
Picture of Mike Rietow
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I got these for sale Crower stainless. They were on a tall deck BBC in a Ray Miller dragster I did for a guy. He ran them from 2014 when I did the engine until 2020, when he freshened the engine and went to T&D shafts.

$300 & shipping






https://youtu.be/FZ6zwnyDwUg

http://ottm.store

https://youtu.be/I8QWEaqeFRw

1996, 1998, 2001, 2003, 2005, 2006, 2008 Super Pro Champion Sunshine Dragstrip, Clearwater Florida
 
Posts: 8831 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR S/Pro
Picture of Mike Rietow
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They're pretty beefy apparently. They lasted 6 years on the Screamer tall deck 540, no burnout chip. The camshaft was a little over 820 lift, Cam Motion.




https://youtu.be/FZ6zwnyDwUg

http://ottm.store

https://youtu.be/I8QWEaqeFRw

1996, 1998, 2001, 2003, 2005, 2006, 2008 Super Pro Champion Sunshine Dragstrip, Clearwater Florida
 
Posts: 8831 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR Pro
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Thanks for the info guys. Looking at the Comp Cams Ultra Pro Magnums


--------------------
Bob Payton
S/P, T/D, S/C, TOP
309Z, 393, 3093, 8X93


www.apdracing.com
www.diamondracecars.com
www.callies.com
 
Posts: 1974 | Location: Michigan | Registered: November 14, 2001Reply With QuoteReport This Post



DRR S/Pro
Picture of Mike Rietow
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quote:
Originally posted by Bob Payton:
Thanks for the info guys. Looking at the Comp Cams Ultra Pro Magnums


They're probably fine, If I couldn't locate Crane Gold for the 71 split bumper, those were most likely what I was gonna do.


https://youtu.be/FZ6zwnyDwUg

http://ottm.store

https://youtu.be/I8QWEaqeFRw

1996, 1998, 2001, 2003, 2005, 2006, 2008 Super Pro Champion Sunshine Dragstrip, Clearwater Florida
 
Posts: 8831 | Location: Madeira Beach Fl. | Registered: June 12, 2018Reply With QuoteReport This Post
DRR Sportsman
Picture of Bad News
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A 6.0 454 should not need anything near fancy for rockers. Lash and deflection maybe .675 lift.
You probably have something else going on, rockers don't usually cause, they get broken because of something else.
Tight guide, lifter issue, dead spring.
Ya need to look further.
Find the cause.
 
Posts: 856 | Location: ft laud | Registered: September 02, 2004Reply With QuoteReport This Post
DRR Pro
Picture of Roger McGinnis
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You had the best non-shaft rockers on there. Why change???



ΜΟΛΩΝ ΛΑΒΕ
 
Posts: 545 | Location: Republic of Texas | Registered: January 16, 2011Reply With QuoteReport This Post
DRR Trophy
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My Reher-Morrison 540 came with Harland Sharp stud mounted rocker arms. Five years and over 500 runs with one overhaul, and the original rocker arms are still on the heads with no problems.
 
Posts: 74 | Location: Abilene, Texas | Registered: July 30, 2018Reply With QuoteReport This Post
DRR Pro
Picture of CURTIS REED
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quote:
Originally posted by Bob Payton:
I have a 454 BBC with Steel heads in my bracket Nova. My kid and I run the crap out of this car it is super fun to drive. Its 6.0s @ 114ish. It just bent a valve last weekend. It has stud mounted Harland sharp rockers. I check the valves every other time out. I rarely have to adjust anything . I started to take it apart at the track and noticed the center pivot on the rocker was cracked. Im guessing the rockers stuck and hung the valve open. Cam is .714 lift roller lifters should I have shaft rockers on this? Trying to do this as economical as possible . Recommendation?


All of the bold would tell me to put the same rockers right back on it. Why change what is working? The best parts made still break sometimes.



____________________________
2017 and 2018 Osage Casinos Tulsa Raceway Park No-Box Champion

2018 Div4 Goodguys Hammer award winner
 
Posts: 2361 | Location: KIEFER, OK. | Registered: August 17, 2007Reply With QuoteReport This Post
DRR Sportsman
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Is it possible the rocket arm broke because the piston hit the valve? Thinking the broken rocker is a result of rather than cause.
 
Posts: 424 | Location: Going to or returning from the chipmine. | Registered: July 01, 2011Reply With QuoteReport This Post
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