Did you see these bushing rockers ?
http://www.harlandsharp.com/products...Shaft_Systems:
But, here's the problem- Over 350 spring pressure, you need the bearing roclers.
"If your spring pressure exceeds 350lbs. open, we also suggest upgrading to our end stand assembly, to prevent shaft breakage.
* If you're building a high rpm, high spring pressure, and high lift engine, you may want to consider our 7/8 shaft and needle bearing assembly."
FE Ford Bronze BushedPart #
S4006B
Rockers Only
S4006BK
S4006BKE
Includes End StandsRatio
1.76:1
1.76:1
1.76:1
Price
$446.25
$775.95
$891.45 fe ford V8 Bronze Bushed
Fits
1958-76 332-427-428
The Ford "FE" is back, and Harland Sharp has you covered for all your rocker arm needs. Whether your building a nostalgic FE or a new style engine with Edelbrock heads we have you covered. Our bronze bushed rocker system features an oilite bushing that fits on stock diameter shafts. We strongly recommend purchasing our rocker kit which includes, rockers, shafts, stands, solid spacers, adjusters and nuts. If your spring pressure exceeds 350lbs. open, we also suggest upgrading to our end stand assembly, to prevent shaft breakage.
* If you're building a high rpm, high spring pressure, and high lift engine, you may want to consider our 7/8 shaft and needle bearing assembly.
Part #
4006B-1Ratio
1.76:1
Price
$31.50
Special Notes:
* Rocker arms have a bronze bushing
* Roller tip with riveted pin
* Heat treat heavy duty shafts .840" diameter
* Steel stands & spacers