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 |
Xtreme Energy 236/242 Solid Flat Cam for Chevrolet Small Block |
Description_EXT |
Very strong mid-range torque and throttle response, 2200+ stall. |
Description_INV |
XE 236/242 Solid Flat Cam for SBC |
Description_SHP |
None |
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_SHO |
XE 236/242 SFT SBC |
Description_MKT |
Featuring a quicker valve opening, the Xtreme Energy camshaft profile provides increased responsiveness and more area under the lift curve than older, slower grinds. Designed to increase performance without sacrificing driveability and creature comforts, the Xtreme Energy grind family offers gains in torque and horsepower while still delivering adequate vacuum for power brakes and other vacuum dependent accessories. Xtreme Energy camshafts work great in carbureted applications, but offer the best performance with aftermarket intake manifolds, lower gear ratios, headers and free flowing exhaust. |
C.A.R.B. Exempt for California Certified Vehicles Manufactured Before 1965? |
Yes, but must meet tailpipe emission standards for year of vehicle. |
Lifter Type |
Solid Flat Tappet |
California Proposition 65 |
WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
SK-Kit Upgrade |
SK12-677-4 |
Camshaft Series |
Xtreme Energy |
Lobe Separation |
110 |
Advertised Intake Duration |
274 |
Lifters Included |
No |
Grind Number |
XS274S |
Camshaft Material |
Cast Iron |
Exhaust Valve Lift |
0.51 |
Assembly Lubricant Included |
Yes |
K-Kit Upgrade |
K12-677-4 |
Engine Family |
Chevrolet 262-400 c.i. 8 Cylinder (1958-1998) |
Title |
Xtreme Energy 236/242 Solid Flat Cam for Chevrolet Small Block |
Usage |
Street/Performance |
C.A.R.B. Exempt for Foreign Vehicles Manufactured Before 1967? |
Yes, but must meet tailpipe emission standards for year of vehicle. |
Intake Valve Lift |
0.501 |
Camshaft Gear Attachment |
3-Bolt |
C.A.R.B. Exempt for Racing and Off-Road Only Vehicles? |
Yes, but must be a race/competition only vehicle. |
Cam and Lifter Kit Upgrade |
CL12-677-4 |
C.A.R.B. Exempt for On-Road Vehicles? |
No |
C.A.R.B. Exemption Reason |
N/A |
Valve Springs Required |
Yes |
Intake Duration at .050 Inch Lift |
236 |
Basic Operating RPM Range |
2,000-6,400 |
C.A.R.B. E.O. Number |
N/A |
Cam Type |
Solid Flat Tappet |
Advertised Exhaust Duration |
280 |
Amazon ASIN |
B001NN90FO |
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 |
242 |
Length |
3.0000 |
Width |
3.0000 |
Height |
23.0000 |
Weight |
9.0000 |