COMP Cams Ultra Pro Magnum Xd Rockers 351C, 1.80:1 Ratio, 7/16" Stud 1838-16
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Built to outlast andoutperform in accuracy andstrength, the Ultra ProMagnum XD Rocker Arms areengineered from durable 8650steel and include
amachined billet pushrod seatinsert for a wide range ofsuper accurate ratios. Aunique and wide ratio rangeto fit almost any popularapplication
from 1.5 to1.7 in .5 increments forChevy and 1.6 to 1.7 forvarious Ford applications isavailable. These XD rockersare fully rebuildable andboast
precision-sortedneedle bearings and hardenedroller tips. And, they workwith most diameter springsand retainers. The new XDdesign utilises advanced
FEA and CAD design anddevelopment to improvestrength, stiffness and MDIoptimisation for drag andcircle track applications.
- Machined billetpushrod seat insert for widerange of rocker ratios usedin popular Chevy and Fordapplications
- 8650Steel construction outlastsand outperforms other rockersin accuracy and strength
- Precision-sorted needlebearings better distributethe load and reduce wear
- Engineered for use incircle track and drag raceapplications