Looking for input on 1.7 ratio stamped rocker that will handle .600+ lift. Found one post where Vintage Musclecar was running Crane nitro-carb steel long slot with ~.618 lift. Most info I find generally states long slots are only good for sub-.600 lift applications. So then I see the crane "extra long slot" steel & ductile iron stamped rockers (less durable but much better than OEM and much cheaper than nitro-carb steel) but no data on max lift. Who else is running stamped rockers with over .600 lift at the valve?
Crane # 13801, steel & ductile iron, extra long slot, max spring OD 1.56"
Crane # 13801C, nitro-carb steel, long slot, max spring OD?
Cam I plan to run is spec'd at .600/.570 lift at the valve.
Springs are 1.55" OD with a 1.56" OD retainer.
if I missed any important info, let me know.
1965 Chevy Biscayne
<removed> 454cid, "peanut ports", Voodoo 60201
<coming soon> 460cid, Brodix RRO 270, 229/241 Hydraulic Roller
TH400, 3.36 Stock Rearend
Last edited by 65cayne; Jan 25th, 19 at 1:58 AM.
Reason: Add additional info)