Roller Rockers Geometry

more info, look at note on bottom


Chrysler Shaft Rockers
The ultimate rocker for your street driven Chrysler
small or big block is investment cast out of SAE 8620
chromemoly steel for the strength you demand. The
rocker bodies are heat treated to obtain maximum
strength and stiffness. The roller tip helps to ensure
even valve guide wear, and our unique oiling system oils
all of the critical points for long lasting service. These
rocker arms are available as an engineered system or
as individual components. The engineered system
includes the shafts and spacers. All you have to do is
bolt them on. Instant power! No machining! Our 1321
big block rocker arms even include a special adjuster
which allows the use of conventional ball-ended
pushrods. You won't find a better rocker arm for your
Chrysler…anywhere!
Ford FE Shaft Rockers
Made from 7000 Series aluminum, these 1.200" wide
rocker bodies are recommended for engines using roller
camshafts. This shaft system is equipped with special
end stands for valve train stability at high RPM, and
therefore virtually eliminates shaft failure. This system
also features top and bottom oil holes for added
rocker lubrication.
Part #1321
Part # Description
1046HD-Kit
Ford Shaft Mounted Rockers For Ford 352, 360,
390, 428 & 428 Cobra Jet Low Riser Cylinder Head
1408-4
End support head bolts for use when head studs
are not used
Note: Needs 1408-4 end support head bolts for use when head studs
are not used
Part # Description Ratio
1420-16
Chrysler V8 273-360
(Spacers & Shafts included) Shaft 1.5
1079-2 Replacement shafts for 1420 (pair)
1420-1 Replacement rocker arm 1.5
CR40 Replacement spacer (1 each-requires 8)
1405-1 Replacement adjusting nut & screw for 1420
1321-16
Chrysler V8 B/RB 383-400 (Complete Kit)
Bolts, Shafts & Spacers included Shaft 1.5
1321L-1 Replacement rocker arm - left — 1.5
1321R-1 Replacement rocker arm - right — 1.5
1077-2 Replacement shafts for 1321 (pair) — —
1321H Bolts and dividers for 1321-16
1321N Replacement Nut for 1321 adjuster
1321S Replacement Adjusting screw for 1321
Note: 1420 rocker arm uses cup style pushrod. 1321 rocker arm uses ball end pushrod.