COMP Cams
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COMP Cams 11-678-20 - Street/strip, 3000+ stall, likes headers and gears, rough idle. Nitrided.
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COMP Cams 11-678-20 - Street/strip, 3000+ stall, likes headers and gears, rough idle. Nitrided.
COMP Cams 11-678-20 - Street/strip, 3000+ stall, likes headers and gears, rough idle. Nitrided.
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.
Advertised Exhaust Duration |
: | 290 |
Advertised Intake Duration |
: | 282 |
Amazon Asin |
: | B002EDYPCK |
Assembly Lubricant Included |
: | Yes |
: |
C.a.r.b. E.o. Number |
: | 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. |
C.a.r.b. Exempt For Federally Certified Vehicles Manufactured Before 1967? |
: | Yes, but must meet tailpipe emission standards for year of vehicle. |
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. Exempt For On-road Vehicles? |
: | No |
C.a.r.b. Exempt For Racing And Off-road Only Vehicles? |
: | Yes, but must be a race/competition only vehicle. |
C.a.r.b. Exemption Reason |
: | N/A |
California Proposition 65 |
: | WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov |
Cam Type |
: | Solid Flat Tappet |
Camshaft Gear Attachment |
: | 3-Bolt |
Camshaft Material |
: | Nitrided Cast Iron |
Camshaft Series |
: | Xtreme Energy |
Engine Family |
: | Chevrolet 396-454 c.i. 8 Cylinder (1967-1996) |
Exhaust Duration At .050 Inch Lift |
: | 252 |
Exhaust Valve Lift |
: | 0.598 |
Grind Number |
: | XS282S |
Intake Duration At .050 Inch Lift |
: | 244 |
Intake Valve Lift |
: | 0.59 |
Lifter Type |
: | Solid Flat Tappet |
Lifters Included |
: | No |
Lobe Separation |
: | 110 |
Title |
: | Xtreme Energy NIT 244/252 Solid Flat Cam for Chevrolet Big Block 396-454 |
Usage |
: | Street/Strip |
Valve Springs Required |
: | Yes |