Which New Rocker Arms To Buy?

skiwesser11

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Oct 30, 2015

#1

• Oct 30, 2015

• #1

Long story short.....Should I go with Comp pro magnums or Ultra Gold?
I don't believe I'll have clearance/fitment issues either way but that's why I'm asking, always get great info here.I'm leaning towards the Pro Magnums. Also going 7/16".

 

a91what

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#2

• Oct 30, 2015

• #2

Scorpion.
Made in usa.

 

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mikestang63

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Oct 30, 2015

#3

• Oct 30, 2015

• #3

pro magnums

 

skiwesser11

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Oct 30, 2015

#4

• Oct 30, 2015

• #4

mikestang63 said:

pro magnums

Click to expand...

Any particular reason you like the pro magnums over Ultra Gold's, Harland sharp, scorpion, ect... Mike??
Thanks for your input

 

mikestang63

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Oct 31, 2015

#5

• Oct 31, 2015

• #5

skiwesser11 said:

Any particular reason you like the pro magnums over Ultra Gold's, Harland sharp, scorpion, ect... Mike??
Thanks for your input

Click to expand...

just preference, both pro magnums and crane gold are good. never used scorpions. avoid pro form

 

a91what

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#6

• Oct 31, 2015

• #6

I like scorpions, made right here in Fl. But I'm a sucker for a USA made part.

 

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skiwesser11

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Nov 2, 2015

#7

• Nov 2, 2015

• #7

a91what said:

I like scorpions, made right here in Fl. But I'm a sucker for a USA made part.

Click to expand...

Agreed, are Comp products not?

 

A5literMan

At least it is lumpy...

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#8

• Nov 2, 2015

• #8

I went with the ultra Pro's

 

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FoxMustangLvr

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Nov 2, 2015

#9

• Nov 2, 2015

• #9

Following the path that @A5literMan started

I went with.....

 

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84Ttop

They make new pistons every day, so why worry?

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Nov 2, 2015

#10

• Nov 2, 2015

• #10

I've always had great success with the Ultra Pro Magnums, heck we saw over 9000 rpms with those suckers and never skipped a beat.
I'm using harland sharp rockers now and haven't been as happy with them as I have been in the past with Comp products

 

skiwesser11

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Nov 2, 2015

#11

• Nov 2, 2015

• #11

Ultra pros it is, look to have larger diameter trunions than most, is that right?

84Ttop said:

I've always had great success with the Ultra Pro Magnums, heck we saw over 9000 rpms with those suckers and never skipped a beat.
I'm using harland sharp rockers now and haven't been as happy with them as I have been in the past with Comp products

Click to expand...

Thanks for that info!

 

84Ttop

They make new pistons every day, so why worry?

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Nov 3, 2015

#12

• Nov 3, 2015

• #12

They have incredibly large trunions, I run a spring that is 350 on the seat closed (not sure of open spring pressure) and never had an issue with them whatsoever

 

Chuckman

GTFO you fat, heavy bastard

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Nov 3, 2015

#13

• Nov 3, 2015

• #13

i was running a set of the tfs ones that come in the kit, the trunnions are real loose side-to-side and make a lot of noise. bought a set of comp ultra golds to replace them, never got to run them before the motor broke, but the trunnions are much tighter and i'm sure would have quieted the thing down. just fyi.

 

skiwesser11

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Nov 3, 2015

#14

• Nov 3, 2015

• #14

84Ttop said:

They have incredibly large trunions, I run a spring that is 350 on the seat closed (not sure of open spring pressure) and never had an issue with them whatsoever

Click to expand...

Good to know, I got springs from Ed, they are AFR's ls springs part # 8019, I forget pressures but they're relatively stout.
Any chance anyone's run the Ultra Pro Magnum's with stock (short) valve covers??
I guess I need this info before I order or they'll hit with my luck.
Pretty sure both these and the Ultra Gold will fit. Last set were same size as the Golds, I'm pretty sure, and there were no clearance issues. Removed baffle years ago when put "cobra" rocker arms on E7's...... the good old days

 

Last edited: Nov 3, 2015

RangerJoe

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Nov 5, 2015

#15

• Nov 5, 2015

• #15

I run the original comp promagnums with stock covers. I had to modify the baffle area, other than that, no problems.

Joe

 

skiwesser11

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Nov 5, 2015

#16

• Nov 5, 2015

• #16

RangerJoe said:

I run the original comp promagnums with stock covers. I had to modify the baffle area, other than that, no problems.

Joe

Click to expand...

Good deal, thanks Joe

 

skiwesser11

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Nov 7, 2015

#17

• Nov 7, 2015

• #17

Pro magnums it is, thank guys!

 

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skiwesser11

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Nov 11, 2015

#18

• Nov 11, 2015

• #18

And they are super quite