Billet Aluminum Roller Rocker Arms CNC-machined aluminum roller rockers will withstand over 800+ lbs. of valve spring pressure and over .800" valve lift. Rocker arms are purple anodized, with needle bearing fulcrums and roller tips, centerless ground trunnions and thick wall adjusting nuts. Sets of 16. Part No. Application Stud Ratio HRC90070 SB Chevy 265-400 3/8" 1.50 HRC90072 SB Chevy 265-400 7/16" 1.50
Valve Locks Howards Cams offers a variety of heat treated, forged steel valve locks, in 7° ver- sions. All valve locks listed are single groove design. Sold in sets of 16 pair.
Stem Size
Lock Angle
Lash Cap Recess
Installed Height
Part No. HRC93005 HRC93010
Type
Forged Forged
11/32" 11/32"
7° 7°
No No
Std.
+.050"
Ultimate Duty Valve Seals
Camshaft Degree Bushings An easy method to advance or retard cam timing. Sold in packs of five. Requires drilling a 13/32" hole in the cam gear. Part No.
Premium PC type seals are unaf- fected by fuels or temperatures up to 350°F. Sold in sets of 16.
I.D. Guide
I.D. Valve O.D.
Overall Height
Inside Height
Guide Contact
Part No.
Description
Description
HRC93311 11/32" x .500" Guide .494" .337" .630" .460" .340" .120" HRC93316 11/32" x .531" Guide .524" .337" .630" .460" .340" .120"
HRC94505 HRC94510
Bushing Set, 0°, 2°, 4°, 6°, 8° Bushing Set, 0°, 1°, 3°, 5°, 7°
Valve Spring Retainers Howard Cams manufactures 7° and 10° chrome moly retainers, all packaged in sets of 16.
Dimensions
Lock Angle
Valve Stem 11/32" 11/32"
Valve Spring
Part No.
Description
A
B
C
D
D C B A
HRC97112 Chrome Moly HRC97118 Chrome Moly HRC97128 Chrome Moly
7° 7°
1.250" Single
1.125" 1.440" 1.435"
.850" 1.050" 1.070"
.645" .700" .700"
— — —
1.437"-1.450" S/D 1.437"-1.450" S/D
10°
All
Performance Valve Springs Coiled and heat treated in the finest facilities available, Howard Cams offers a wide variety of valve springs. Sold in sets of 16. Part No. O.D. I.D. Description Seat Pressure Open Pressure Rate Coil Bind Max Lift Retainer
Performance Street/Strip Valve Springs HRC98212 1.265" .875" Single With Damp. HRC98213 1.265" .875" Single With Damp. HRC98214 1.250" .870" Single With Damp. HRC98411 1.437" .960" Single With Damp. HRC98529 1.525” 1.075” Single With Damp. Electro Polished Performance Valve Springs HRC98215 1.265" .875" Single With Damp. HRC98636 1.530" .700" Dual With Damp.
115 @ 1.750" 120 @ 1.800" 115 @ 1.700" 110 @ 1.750" 125 @ 1.875” 130 @ 1.875"
340 @ 1.250" 425 1.150" 350 @ 1.200" 380 1.100" 300 @ 1.250" 411 1.160" 270 @ 1.100" 246 1.050" 350 @ 1.375” 462 1.200” 330 @ 1.300" 348 1.150"
.550" HRC97112 .640" HRC97112
.500" .640" .600”
— — —
.670" HRC97118
120 @ 1.800"
350 @ 1.200" 380 1.100"
.640"
—
Track Smart 4340 Forged Steel Crankshafts Computer designed, “Track Smart” 4340 forged crankshafts are constructed using precisely placed counterweights for improved balance and reduced bearing loads. All rod journals are drilled and counterweights profiled for piston clearance. All journals include a large, .125” radii and require chamfered bearings. Crankshafts are additionally hardened with a deep nitride for increased wear resis- tance. Rod Part No. Description Main Stroke Length HRCH353485712T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 3.480” 5.700” HRCH353756012T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 3.750” 6.000” HRCH353876012T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 3.875” 6.000” HRCH354006012T SB Chevy, Int. Bal., 2-Pc. Rear Main 350 4.000” 6.000” HRCH403756012T SB Chevy, Int. Bal., 2-Pc. Rear Main 400 3.750” 6.000” HRCH403876012T SB Chevy, Int. Bal., 2-Pc. Rear Main 400 3.875” 6.000” HRCH404006012T SB Chevy, Int. Bal., 2-Pc. Rear Main 400 4.000” 6.000” Extreme Billet Main Caps Precision CNC-machined from 1020 low carbon steel, Extreme Billet Main Caps help increase bottom end rigidity. Main cap sets include (3) center caps. Part No. Description HRCH350R SB Chevy 350, 4-Bolt Replacement HRCH350S SB Chevy 350, Converts 2-Bolt To 4-Bolt, Splayed Outer Bolts
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