| Description_ASM |
Fits Chevrolet GEN 1 Small Blocks including the 262, 265, 267, 283, 302, 305, 307, 327, 350 and 400. Does not fit LT1/LT4, or factory roller Small Blocks built from 1985 and newer. GM gradually added roller camshafts to 305's and 350's from the mid 80's forward. Camaros/Firebirds/Corvettes received the roller cams early, but many trucks and SUV's had flat tappet cams until the mid 90's. Remove the intake or timing cover to confirm whether the block is a factory roller or flat tappet. Does not fit the LS1, LS2, LS3 or any LS-based 4.8, 5.3, 5.7, 6.0 and 6.2. 1955-1957 Chevrolet 265 engines require a groove on the 5th cam journal for oiling. Contact us for more information. |
| Description_DEF |
Engine Camshaft |
| Description_DES |
Drag Race/Oval Track 253/253 Hydraulic Flat Cam for Chevrolet Small Block |
| Description_KEY |
265, 283, 307, 302, 305, 327, 350, 383, 400, 427, L46, L48, L65, LM1, LT-1, L82, L81, LS9, L83, L98, L05, LG3, LG4, LT1, LT4, Camaro, Corvette, Chevelle, Stingray, Silverado, C10, Firebird, Chevrolet, Chevy, Small Block Chevy, Caprice, Malibu, Impala, Nova, 355, GEN1, Monte Carlo, S10 |
| Description_EXT |
4000+ stall, 11:1+ compression, medium weight car. Good for light cars on long tracks with fast corners. |
| Description_INV |
Oval Track 253/253 Hyd Flat Cam SBC |
| Description_SHP |
None |
| Description_SHO |
DR/OT 253/253HFTSBC |
| Grind Number |
305H-6 |
| Advertised Exhaust Duration |
305 |
| Amazon ASIN |
B000P5B71Q |
| C.A.R.B. Exempt for On-Road Vehicles? |
No |
| C.A.R.B. E.O. Number |
N/A |
| Camshaft Gear Attachment |
3-Bolt |
| Intake Duration at .050 Inch Lift |
253 |
| Cam Type |
Hydraulic Flat Tappet |
| C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? |
Yes, but must be a race/competition only vehicle. |
| Valve Springs Required |
Yes |
| Intake Valve Lift |
0.525 |
| C.A.R.B. Exempt for Federally Certified Vehicles Manufactured Before 1967? |
Yes, but must meet tailpipe emission standards for year of vehicle. |
| Exhaust Duration at .050 inch Lift |
253 |
| Basic Operating RPM Range |
3,500-6,500 |
| Lifter Type |
Hydraulic Flat Tappet |
| C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? |
Yes, but must meet tailpipe emission standards for year of vehicle. |
| C.A.R.B. Exemption Reason |
N/A |
| C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? |
Yes, but must meet tailpipe emission standards for year of vehicle. |
| Lifters Included |
No |
| Engine Family |
Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
| Lobe Separation |
106 |
| Camshaft Material |
Cast Iron |
| Title |
Drag Race/Oval Track 253/253 Hydraulic Flat Cam for Chevrolet Small Block |
| California Proposition 65 |
WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
| Camshaft Series |
Oval Track |
| Assembly Lubricant Included |
Yes |
| Advertised Intake Duration |
305 |
| Exhaust Valve Lift |
0.525 |
| Length |
3.0000 |
| Width |
3.0000 |
| Height |
23.0000 |
| Weight |
9.0000 |
