Can I run stock pushrods with H.S. 1.9 RR's?

[jlturbos]

I picked up a set of used H.S. RRs with the revised pedestals and they are in good shape. I also have new valve cover gaskets and grommets, reusable rocker bolts and new L76 G8 springs, retainers and locks. My only concern now would be the pushrods.

Is it possible to run stock pushrods with Harland Sharp 1.9 roller rockers? The question is three-fold;Is the stock length ok? Are they strong enough for the heavier rocker arm? Do they need to be oil restricted?

Thanks in advance,
JL

 

[Bio248]

the stock pushrods will do you fine unless you really wanted to spend some money on the fancy ones.

 

[jlturbos]

Sounds good, I was mostly concerned with the pushrod length.

JL

 

[Bio248]

the only reason why you'd change the length is if the rockers were adjustable or if you changed to a cam that had a differently sized base circle.

 

[jlturbos]

Not necessarily true. Go to this page:
INTENSE-Racing.com: INTENSE™ 3800 High-Performance Pushrods

Scroll down to the PRO730 rods and see that Yella Terra rockers use 7.300" length pushrods. That was why I was wondering if Harland Sharp manufactured theirs in a similar fashion.

JL

 

[blueguy]

I had special length pushrods for my 1.84 ZZP Rollers a couple years back...had to do with the pedestal height I believe.

 

[Bio248]

well, the only way to really know for sure is to measure..

 

[jlturbos]

I contacted Harland Sharp today and they said to use the stock length pushrods. They did however recommend something stronger than stock. I may go with Comp Cams 7937-12:
COMP Cams 7937-12 - COMP Cams Hi-Tech Pushrods - Overview - SummitRacing.com

I may be even be able to get them locally.

Thanks for the help guys,
JL

 

[GR8racingfool]

Stock will be fine, though roller rockers only need a "splash" of oil to operate, so oil restricted push rods are not a bad idea. Helps keep the oil in the bottom end where its really needed ya know. But drowning them in oil wont hurt anything either. :th_thumbsup-wink:

~F~