Rocker Arm Setup for Mild Stroker

[threewood]

I agree 100%... But thats why I like the old Isky ductile iron rockers... No much can break & if it does there's no tiny needle bearings to cause bigger problems...

If I hadn't gathered Isky's back in the day I'd probably be running newer PRW's...

The Hughes set and the Mancini set are not full roller designs. No rollers on the shaft at all. The Hughes arm rides right on the rocker shaft as does the Mancini. The tip has the large roller. That's it. And I agree about full roller rocker arms. More to go wrong.

 

[451Mopar]

Hello all,

I am planning a stroker build for my 440 block and would appreciate some advice. I will be using the TrickFlow 240 heads on a 500 inch stroker. Cam will be a solid lifter with perhaps 0.520" to 0.550" valve lift. Spring pressures will be maybe 330lbs (open). I see that there are several choices for a complete rocker arm setup, and they vary widely in price.

This will be a street use engine, so I am interested in a rocker arm setup that will not break the bank. I don't want junk, but clearly this is not a high rpm race application either.

Your thoughts/experience? Thanks.

Trick flow recommends the Harlan Sharpe rockers S7001[5 or 6]KE rockers. The S70015 is 1.5:1 ratio, and S70016 is 1.6:1 ratio.
I am not sure what exactly different from the "K" vs. "KE" rockers. I do agree those rockers are expensive, but I never have had problems with them either.

 

[justcruisin]

Trick flow recommends the Harlan Sharpe rockers S7001[5 or 6]KE rockers. The S70015 is 1.5:1 ratio, and S70016 is 1.6:1 ratio.
I am not sure what exactly different from the "K" vs. "KE" rockers. I do agree those rockers are expensive, but I never have had problems with them either.

Pretty sure the "KE" arms are 0.040" shorter than the standard HS arms.

 

[rolling_Thunder]

Trick flow recommends the Harlan Sharpe rockers S7001[5 or 6]KE rockers. The S70015 is 1.5:1 ratio, and S70016 is 1.6:1 ratio.
I am not sure what exactly different from the "K" vs. "KE" rockers. I do agree those rockers are expensive, but I never have had problems with them either.

Trick Flow also states that their heads accept factory style rocker arms and roller style rockers - My rockers should be here this week (barring some Corona-virus apocalypse) and I'll let you know what my machinist things in the next couple weeks

 

[dvw]

I've run the ductile iron with .630" roller cams, no issue. Crane golds at .560" , going on 16 years. Bought a set of PRW. .560" cam. Broke about 10 adjuster screws. Gave up. Now that motor runs the old Mopar blue. I believe they are the same as Crane, never an issue.
Doug

 

[wyrmrider]

I'd also ask B3Racing industries he most likely gets feedback from most everywhere
or dial up rocker arm specialists in anderson ca
straight shooters for over 50 years