Comp Cams 4-Pattern 253/263 IB 255/265 OB Hydraulic Roller Cam Chevrolet Big Block 396-454 - 11-617-44
Recommended in highly modified street/strip or bracket race engines and also works well in 572+ c.i. applications.
4-Pattern 253/263 IB 255/265 OB Hydraulic Roller Cam Chevrolet Big Block 396-454
PRODUCT NOTES:
Camshaft Series - 4-Pattern
Usage - Strip
Cam Type - Hydraulic Roller
Grind Number - 305QIO10
Basic Operating RPM Range - 3200-7,500 R3
Inboard Intake Duration at .050 Inch Lift - 253 DD
Outboard Intake Duration at .050 Inch Lift - 255 DD
Inboard Exhaust Duration at .050 inch Lift - 263 DD
Outboard Exhaust Duration at .050 inch Lift - 265 DD
Advertised Inboard Intake Duration - 305 DD
Advertised Outboard Intake Duration - 307 DD
Advertised Inboard Exhaust Duration - 317 DD
Advertised Outboard Exhaust Duration - 319 DD
Inboard Intake Valve Lift - 0.678 IN
Outboard Intake Valve Lift - 0.678 IN
Inboard Exhaust Valve Lift - 0.661 IN
Outboard Exhaust Valve Lift - 0.661 IN
Lifters Included - No
Valve Springs Required - Yes
Assembly Lubricant Included - No
Camshaft Gear Attachment - 3-Bolt
Camshaft Material - Billet Steel
Engine Family - Chevrolet 396-454 c.i. 8 Cylinder (1967-1996)
Lifter Type - Hydraulic Roller
California Proposition 65 - WARNING: Cancer and Reproductive Harm P65Warnings.ca.gov
Title - 4-Pattern 253/263 IB 255/265 OB Hydraulic Roller Cam Chevrolet Big Block 396-454
Amazon ASIN - B00CWZVWZS
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. 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 California Certified Vehicles Manufactured Before 1965? - 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. Exemption Reason - N/A
C.A.R.B. E.O. Number - N/A
Lethal Performance is proud to offer the entire line of Comp Cams products!
For more than 35 years, the COMP Cams® mission has never changed: to produce the highest-performing products possible, provide customers with superior service, and to lead the industry in technological development. While the COMP Performance Group™ has grown to multiple companies and hundreds of employees, we still retain the competitive spirit and desire to be the very best that has positioned COMP Cams® as the absolute leader in valve train components.
With COMP Cams®, there is no compromise - you're in first place.
