STUD GIRDLES
Chevrolet Big Block 396-454 Part No. Description
Stud
Chevrolet Big Block 396-454 AFR AFR6202
Fits AFR V-2 Heads 2013 & Newer (Nuts Sold Separately)
—
Brodix
BROBR1230 Comp Cams COM4021 Crane Cams CRN13602-1 Dart Heads DRT64110001
BR-1,-2,-2X,-3 Heads
7/16"
Standard Spacing
7/16"
Standard Spacing
7/16"
320/360 Dart Heads
7/16"
Moroso
MOR67250
Standard Spacing
7/16"
PRW Industries PQX1545400
Standard Stud Spacing
7/16"
CAMSHAFTS AND KITS
Chevrolet Big Block 348-409 “W” Series Engine
RPM Range
Adv. Duration
Duration @ .050"
Valve Lift
Valve Lash
Lobe Center
Part No.
Description
Hydraulic Camshafts Comp Cams Thumpr Hydraulic Camshaft COM48-600-5 Cam Only
2000-5800
278°/296°
226°/241°
.512"/.498"
— 107°
Crane Cams Hydraulic Camshafts CRN150301 Cam Only
2200-6000
294°/304°
224°/234°
.541"/.569"
— 112°
Hydraulic Roller Camshafts Crane Cams Hydraulic Roller Camshafts - Retro-Fit CRN159521 Cam Only 2000-6000 Mechanical Flat Tappet Camshafts Crane Cams Blueprint Mechanical 425 HP 409 Camshaft CRN150431 Cam Only 3200-6500
280°/286°
224°/230°
.558"/.574"
— 110°
274°/281°
237°/241°
.504"/.515" .022"/.030"
113.5°
Chevrolet Big Block 396-454 1967-95
RPM Range
Adv. Duration
Duration @ .050"
Valve Lift
Valve Lash
Lobe Center
Part No.
Description
Hydraulic Camshafts and Kits Comp Cams High-Energy Hydraulic Camshafts and Lifter Kits COM11-202-3 Cam Only 800-4800
252°/252° 260°/260° 268°/268°
206°/206° 212°/212° 218°/218°
.460"/.460" .475"/.475" .485"/.485"
— 110° — 110° — 110°
COM11-203-3 COM11-205-3
Cam Only CL Cam Only CL
1200-5200 1500-5500
CL Stocking camshaft and lifters add “CL” to Prefix. Example: COMCL11-205-3 Comp Cams Magnum Hydraulic Camshafts and Lifter Kits COM11-207-3 Cam Only CL 1500-5800
270°/270° 280°/280° 286°/286° 292°/292° 305°/305°
224°/224°
.510"/.510"
— 110° — 110° — 110° — 110° — 110°
COM11-208-3 COM11-318-4 COM11-213-3 COM11-214-4
Cam Only CL Cam Only Cam Only CL Cam Only CL
2000-6000 2200-6200 2500-6500 3000-6800
230°/230° .520"/.520" 236°/236° .556"/.556" 244°/244° .550"/.550" 253°/253° .575"/.575"
CL Stocking camshaft and lifters add “CL” to Prefix. Example: COMCL11-207-3 Comp Cams Computer-Controlled TBI Camshafts COM11-302-4 Cam Only 1000-5200
260/268
212/218
.503"/.503"
Hyd.
112°
216
2021-22 ENGINE BUILDER CATALOG
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